Station Overview Station Location
Station Number CO-BO-67 Latitude 39.999614
Station Name Boulder 4.7 E Longitude -105.179377
County Boulder Elevation (ft) 5325



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 12 1.31 1.21 31 1.21 31 0.00 0 0 8 1 8.2 3 3
Nov 12 1.00 0.33 30 0.33 30 0.00 0 0 1 1 1.1 1 2
Dec 12 0.70 0.41 31 0.41 31 0.00 0 0 4 0 7.3 4 13
Jan 13 0.57 0.23 31 0.23 31 0.00 0 0 2 4 4.3 4 19
Feb 13 0.54 1.08 28 1.08 28 0.00 0 0 7 3 15.3 8 11
March 13 1.80 1.84 31 1.84 31 0.00 0 0 9 2 22.7 8 15
April 13 2.13 3.67 30 3.67 30 0.00 0 0 11 2 39.7 8 10
May 13 2.38 2.38 21 2.38 21 0.00 0 0 8 3 10.8 2 3
June 13 1.84 0.28 16 0.28 16 0.00 0 0 3 4 0.0 0 0
July 13 1.68 1.56 22 1.56 22 0.00 0 0 10 1 0.0 0 0
Aug 13 1.64 0.47 19 0.47 19 0.00 0 0 8 7 0.0 0 0
Sept 13 1.40 14.44 30 14.44 30 0.00 0 0 13 0 0.0 0 0
Water Year Totals: 16.99" 27.90" 320 days 27.90" 320 0.00" 0 days 0 84 days 28 days 109.4" 38 days 76 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2012 0.03
10/2/2012 0.00
10/3/2012 0.00
10/4/2012 0.00
10/5/2012 0.01
10/6/2012 0.01
10/7/2012 0.02
10/8/2012 0.00
10/9/2012 0.00
10/10/2012 0.00
10/11/2012 0.00
10/12/2012 0.00
10/13/2012 0.10
10/14/2012 0.11
10/15/2012 0.00
10/16/2012 0.00
10/17/2012 T
10/18/2012 0.00
10/19/2012 0.00
10/20/2012 0.00
10/21/2012 0.00
10/22/2012 0.00
10/23/2012 0.00
10/24/2012 0.00
10/25/2012 0.74
10/26/2012 0.19
10/27/2012 0.00
10/28/2012 0.00
10/29/2012 0.00
10/30/2012 0.00
10/31/2012 0.00
11/1/2012 0.00
11/2/2012 0.00
11/3/2012 0.00
11/4/2012 0.00
11/5/2012 0.00
11/6/2012 0.00
11/7/2012 0.00
11/8/2012 0.00
11/9/2012 0.00
11/10/2012 0.00
11/11/2012 0.33
11/12/2012 0.00
11/13/2012 0.00
11/14/2012 0.00
11/15/2012 0.00
11/16/2012 T
11/17/2012 0.00
11/18/2012 0.00
11/19/2012 0.00
11/20/2012 0.00
11/21/2012 0.00
11/22/2012 0.00
11/23/2012 0.00
11/24/2012 0.00
11/25/2012 0.00
11/26/2012 0.00
11/27/2012 0.00
11/28/2012 0.00
11/29/2012 0.00
11/30/2012 0.00
12/1/2012 0.00
12/2/2012 0.00
12/3/2012 0.00
12/4/2012 0.00
12/5/2012 0.00
12/6/2012 0.00
12/7/2012 0.00
12/8/2012 0.00
12/9/2012 0.00
12/10/2012 0.00
12/11/2012 0.03
12/12/2012 0.00
12/13/2012 0.00
12/14/2012 0.00
12/15/2012 0.00
12/16/2012 0.00
12/17/2012 0.00
12/18/2012 0.00
12/19/2012 0.06
12/20/2012 0.04
12/21/2012 0.00
12/22/2012 0.00
12/23/2012 0.00
12/24/2012 0.00
12/25/2012 0.28
12/26/2012 0.00
12/27/2012 0.00
12/28/2012 0.00
12/29/2012 0.00
12/30/2012 0.00
12/31/2012 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2013 0.00
1/2/2013 0.00
1/3/2013 0.00
1/4/2013 0.00
1/5/2013 0.00
1/6/2013 0.00
1/7/2013 0.00
1/8/2013 0.00
1/9/2013 0.00
1/10/2013 0.00
1/11/2013 0.00
1/12/2013 T
1/13/2013 T
1/14/2013 T
1/15/2013 T
1/16/2013 0.00
1/17/2013 0.00
1/18/2013 0.00
1/19/2013 0.00
1/20/2013 0.00
1/21/2013 0.00
1/22/2013 0.00
1/23/2013 0.00
1/24/2013 0.00
1/25/2013 0.00
1/26/2013 0.00
1/27/2013 0.01
1/28/2013 0.00
1/29/2013 0.22
1/30/2013 0.00
1/31/2013 0.00
2/1/2013 0.00
2/2/2013 0.00
2/3/2013 0.00
2/4/2013 0.00
2/5/2013 0.00
2/6/2013 0.00
2/7/2013 T
2/8/2013 0.00
2/9/2013 0.00
2/10/2013 T
2/11/2013 0.01
2/12/2013 T
2/13/2013 0.00
2/14/2013 0.00
2/15/2013 0.10
2/16/2013 0.00
2/17/2013 0.00
2/18/2013 0.00
2/19/2013 0.00
2/20/2013 0.00
2/21/2013 0.40
2/22/2013 0.08
2/23/2013 0.00
2/24/2013 0.12
2/25/2013 0.31
2/26/2013 0.00
2/27/2013 0.06
2/28/2013 0.00
3/1/2013 0.00
3/2/2013 0.00
3/3/2013 0.00
3/4/2013 0.00
3/5/2013 0.17
3/6/2013 0.00
3/7/2013 0.00
3/8/2013 0.00
3/9/2013 0.16
3/10/2013 0.31
3/11/2013 0.00
3/12/2013 0.26
3/13/2013 0.01
3/14/2013 0.00
3/15/2013 0.00
3/16/2013 0.00
3/17/2013 0.00
3/18/2013 0.00
3/19/2013 0.00
3/20/2013 0.00
3/21/2013 0.00
3/22/2013 0.03
3/23/2013 0.55
3/24/2013 0.34
3/25/2013 0.01
3/26/2013 0.00
3/27/2013 0.00
3/28/2013 0.00
3/29/2013 T
3/30/2013 0.00
3/31/2013 T
Day of YearDaily PrcpMultiday Prcp
4/1/2013 0.00
4/2/2013 0.03
4/3/2013 0.48
4/4/2013 0.00
4/5/2013 0.00
4/6/2013 0.00
4/7/2013 0.00
4/8/2013 0.00
4/9/2013 0.24
4/10/2013 0.13
4/11/2013 T
4/12/2013 T
4/13/2013 0.00
4/14/2013 0.12
4/15/2013 0.16
4/16/2013 1.15
4/17/2013 0.09
4/18/2013 0.38
4/19/2013 0.00
4/20/2013 0.00
4/21/2013 0.00
4/22/2013 0.00
4/23/2013 0.84
4/24/2013 0.05
4/25/2013 0.00
4/26/2013 0.00
4/27/2013 0.00
4/28/2013 0.00
4/29/2013 0.00
4/30/2013 0.00
5/1/2013 0.68
5/2/2013 0.63
5/3/2013 0.00
5/4/2013 0.00
5/5/2013 0.00
5/6/2013 0.00
5/7/2013 0.00
5/8/2013 0.03
5/9/2013 0.48
5/10/2013 0.15
5/11/2013
5/12/2013 T
5/13/2013 0.00
5/14/2013
5/15/2013 0.00
5/16/2013 T
5/17/2013 T
5/18/2013 0.00
5/19/2013 0.00
5/20/2013 0.03
5/21/2013 0.02
5/22/2013 0.00
5/23/2013
5/24/2013
5/25/2013
5/26/2013
5/27/2013
5/28/2013
5/29/2013
5/30/2013 0.36
5/31/2013
6/1/2013
6/2/2013
6/3/2013 T
6/4/2013 0.00
6/5/2013 0.26
6/6/2013 0.01
6/7/2013
6/8/2013
6/9/2013 T
6/10/2013 0.00
6/11/2013 0.00
6/12/2013 0.00
6/13/2013
6/14/2013 T
6/15/2013
6/16/2013
6/17/2013
6/18/2013
6/19/2013
6/20/2013
6/21/2013 0.00
6/22/2013 0.00
6/23/2013 T
6/24/2013 0.01
6/25/2013
6/26/2013 0.00
6/27/2013 0.00
6/28/2013 0.00
6/29/2013
6/30/2013
Day of YearDaily PrcpMultiday Prcp
7/1/2013
7/2/2013
7/3/2013 0.00
7/4/2013 0.00
7/5/2013 0.00
7/6/2013
7/7/2013
7/8/2013 T
7/9/2013 0.00
7/10/2013
7/11/2013 0.00
7/12/2013 0.03
7/13/2013 0.15
7/14/2013 0.05
7/15/2013 0.01
7/16/2013 0.00
7/17/2013
7/18/2013 0.00
7/19/2013
7/20/2013
7/21/2013 0.00
7/22/2013 0.00
7/23/2013 0.00
7/24/2013
7/25/2013 0.00
7/26/2013 0.76
7/27/2013 0.01
7/28/2013 0.41
7/29/2013 0.01
7/30/2013 0.03
7/31/2013 0.10
8/1/2013 0.00
8/2/2013 0.04
8/3/2013
8/4/2013 0.17
8/5/2013 T
8/6/2013 0.03
8/7/2013 0.02
8/8/2013 T
8/9/2013 T
8/10/2013
8/11/2013 0.04
8/12/2013
8/13/2013
8/14/2013
8/15/2013
8/16/2013
8/17/2013
8/18/2013 0.00
8/19/2013 T
8/20/2013
8/21/2013
8/22/2013 0.13
8/23/2013 0.02
8/24/2013 0.02
8/25/2013
8/26/2013
8/27/2013 T
8/28/2013 0.00
8/29/2013 0.00
8/30/2013 T
8/31/2013 T
9/1/2013 0.01
9/2/2013 0.00
9/3/2013 0.00
9/4/2013 0.00
9/5/2013 0.00
9/6/2013 0.00
9/7/2013 0.00
9/8/2013 0.00
9/9/2013 0.00
9/10/2013 1.70
9/11/2013 0.83
9/12/2013 5.87
9/13/2013 3.51
9/14/2013 0.09
9/15/2013 0.05
9/16/2013 1.42
9/17/2013 0.04
9/18/2013 0.00
9/19/2013 0.02
9/20/2013 0.00
9/21/2013 0.00
9/22/2013 0.00
9/23/2013 0.52
9/24/2013 0.00
9/25/2013 0.00
9/26/2013 0.00
9/27/2013 0.02
9/28/2013 0.36
9/29/2013 0.00
9/30/2013 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2012 7:00 AM 0.03 0.0 M 0.0 M R- after midnight and pretty much over by 6am
10/2/2012 7:00 AM 0.00 0.0 M 0.0 M
10/3/2012 7:00 AM 0.00 0.0 M 0.0 M
10/4/2012 7:00 AM 0.00 0.0 M 0.0 M
10/5/2012 7:00 AM 0.01 0.2 M T M first snow of the season. Snow began after midnight, at least 0.1" by ~3am, flurries still at 7am but sun out
10/6/2012 7:00 AM 0.01 T M T M
10/7/2012 7:00 AM 0.02 0.0 M 0.0 M
10/8/2012 7:00 AM 0.00 0.0 M 0.0 M
10/9/2012 7:00 AM 0.00 0.0 M 0.0 M
10/10/2012 7:00 AM 0.00 0.0 M 0.0 M
10/11/2012 7:00 AM 0.00 0.0 M 0.0 M
10/12/2012 7:00 AM 0.00 0.0 M 0.0 M
10/13/2012 7:00 AM 0.10 0.0 M 0.0 M based on nearby reports
10/14/2012 7:00 AM 0.11 0.0 M 0.0 M based on nearby reports
10/15/2012 7:00 AM 0.00 0.0 M 0.0 M
10/16/2012 7:00 AM 0.00 0.0 M 0.0 M
10/17/2012 7:00 AM T 0.0 M 0.0 M Pretty good period of R- to R-- from about 830pm to maybe 11pm. Thought there would at least be 0.01, ran into almost R at times just to the west around 9pm
10/18/2012 7:00 AM 0.00 0.0 M 0.0 M
10/19/2012 7:00 AM 0.00 0.0 M 0.0 M
10/20/2012 7:00 AM 0.00 0.0 M 0.0 M
10/21/2012 7:00 AM 0.00 0.0 M 0.0 M
10/22/2012 7:00 AM 0.00 0.0 M 0.0 M
10/23/2012 7:00 AM 0.00 0.0 M 0.0 M
10/24/2012 7:00 AM 0.00 0.0 M 0.0 M
10/25/2012 7:00 AM 0.74 5.7 M 4.0 M Rain began late afternoon, by time of changeover to snow ~1930 had 0.28". Snow was S occasional S+ generally until after midnight, had 1.6" new by 2200 LT. Still some S- at 0600 with another 3.0", then 0.1" after that with clearing now. 0.46" of melted snow.
10/26/2012 7:00 AM 0.19 2.3 M 3.5 M A dusting of snow by 6pm (began late afternoon), then 1.2" by 10pm and another 1.1" after that. Not sure when it ended but over before 7am.
10/27/2012 7:00 AM 0.00 0.0 M 1.5 M
10/28/2012 7:00 AM 0.00 0.0 M T M small patches left but about 1.5" in the shade
10/29/2012 7:00 AM 0.00 0.0 M T M
10/30/2012 7:00 AM 0.00 0.0 M 0.0 M
10/31/2012 7:00 AM 0.00 0.0 M 0.0 M
11/1/2012 7:00 AM 0.00 0.0 M 0.0 M
11/2/2012 7:00 AM 0.00 0.0 M 0.0 M
11/3/2012 7:00 AM 0.00 0.0 M 0.0 M
11/4/2012 7:00 AM 0.00 0.0 M 0.0 M
11/5/2012 7:00 AM 0.00 0.0 M 0.0 M
11/6/2012 7:00 AM 0.00 0.0 M 0.0 M
11/7/2012 7:00 AM 0.00 0.0 M 0.0 M
11/8/2012 7:00 AM 0.00 0.0 M 0.0 M
11/9/2012 7:00 AM 0.00 0.0 M 0.0 M
11/10/2012 7:00 AM 0.00 0.0 M 0.0 M
11/11/2012 7:00 AM 0.33 1.1 M 1.0 M sw-/rw- began ~0900 with a few sprinkles that increased by 1000, then mainly S- after that, ocnl S, lots of pellets so very dense snow. 0.2"/0.05" by 1200, another 0.8"/0.28" by 1800, then 0.1"/trace thereafter. SW- still at midnight.
11/12/2012 7:00 AM 0.00 0.0 M 1.0 M
11/13/2012 7:00 AM 0.00 0.0 M T M
11/14/2012 7:00 AM 0.00 0.0 M T M very little snow left in the sun, about 0.5" in the shade
11/15/2012 7:00 AM 0.00 0.0 M T M about a quarter of an inch left in the shade
11/16/2012 7:00 AM T T M T M some spots of snow left in the shade. snow flurries began ~0715 and ended mid-morning
11/17/2012 7:00 AM 0.00 0.0 M 0.0 M
11/18/2012 7:00 AM 0.00 0.0 M 0.0 M
11/19/2012 7:00 AM 0.00 0.0 M 0.0 M
11/20/2012 7:00 AM 0.00 0.0 M 0.0 M
11/21/2012 7:00 AM 0.00 0.0 M 0.0 M
11/22/2012 7:00 AM 0.00 0.0 M 0.0 M high of 70 on wed
11/23/2012 7:00 AM 0.00 0.0 M 0.0 M
11/24/2012 7:00 AM 0.00 0.0 M 0.0 M
11/25/2012 7:00 AM 0.00 0.0 M 0.0 M
11/26/2012 7:00 AM 0.00 0.0 M 0.0 M
11/27/2012 7:00 AM 0.00 0.0 M 0.0 M may have been a little afternoon freezing drizzle but not home
11/28/2012 7:00 AM 0.00 0.0 M 0.0 M
11/29/2012 7:00 AM 0.00 0.0 M 0.0 M
11/30/2012 7:00 AM 0.00 0.0 M 0.0 M
12/1/2012 7:00 AM 0.00 0.0 M 0.0 M
12/2/2012 7:00 AM 0.00 0.0 M 0.0 M
12/3/2012 7:00 AM 0.00 0.0 M 0.0 M
12/4/2012 7:00 AM 0.00 0.0 M 0.0 M
12/5/2012 7:00 AM 0.00 0.0 M 0.0 M
12/6/2012 7:00 AM 0.00 0.0 M 0.0 M hi of 70 on wed
12/7/2012 7:00 AM 0.00 0.0 M 0.0 M might have been a few raindrops around 815am but so light and brief was hard to tell.
12/8/2012 7:00 AM 0.00 0.0 M 0.0 M
12/9/2012 7:00 AM 0.00 0.0 M 0.0 M some flurries in Boulder later sat afternoon but not home so not sure they made it this far east
12/10/2012 7:00 AM 0.00 0.0 M 0.0 M
12/11/2012 7:00 AM 0.03 0.4 M 0.5 M What was that stuff!!! Began before 10pm, dusting on the porch at 1000. Cleared out before 0700 with a low of 12.
12/12/2012 7:00 AM 0.00 0.0 M T M snow still left in the shade
12/13/2012 7:00 AM 0.00 0.0 M T M a little snow left in the shade
12/14/2012 7:00 AM 0.00 0.0 M 0.0 M
12/15/2012 7:00 AM 0.00 0.0 M 0.0 M
12/16/2012 7:00 AM 0.00 0.0 M 0.0 M
12/17/2012 7:00 AM 0.00 0.0 M 0.0 M
12/18/2012 7:00 AM 0.00 0.0 M 0.0 M
12/19/2012 7:00 AM 0.06 1.5 M 1.5 M Flurries began about 10pm, no measurable at midnight with still only flurries.
12/20/2012 7:00 AM 0.04 0.7 M 1.5 M Pretty much all of the snow fell by 9am, still a bit of S- rest of the morning
12/21/2012 7:00 AM 0.00 0.0 M 0.5 M
12/22/2012 7:00 AM 0.00 0.0 M 0.5 M snow depth estimated
12/23/2012 7:00 AM 0.00 0.0 M 0.5 M snow depth estimated
12/24/2012 7:00 AM 0.00 0.0 M T M
12/25/2012 7:00 AM 0.28 4.7 M 4.5 M 2.7" by midnight with 0.21 liquid. low of 5
12/26/2012 7:00 AM 0.00 0.0 M 3.5 M snow settled - only hit 15 yesterday and -3 last night.
12/27/2012 7:00 AM 0.00 0.0 M 3.5 M
12/28/2012 7:00 AM 0.00 0.0 M 3.0 M snow depth estimated
12/29/2012 7:00 AM 0.00 0.0 M 3.0 M snow depth estimated
12/30/2012 7:00 AM 0.00 0.0 M 2.5 M snow depth estimated
12/31/2012 7:00 AM 0.00 0.0 M 2.5 M snow depth estimated
1/1/2013 7:00 AM 0.00 0.0 M 2.5 M snow depth estimated
1/2/2013 7:00 AM 0.00 0.0 M 2.5 M
1/3/2013 7:00 AM 0.00 0.0 M 2.5 M
1/4/2013 7:00 AM 0.00 0.0 M 2.0 M
1/5/2013 7:00 AM 0.00 0.0 M 2.0 M
1/6/2013 7:00 AM 0.00 0.0 M 2.0 M
1/7/2013 7:00 AM 0.00 0.0 M 2.0 M still 3-3.5 in the shade, bare spots some sunny areas. Nearby open sunny fields have only a trace.
1/8/2013 7:00 AM 0.00 0.0 M 1.0 M bare patches in the sun, a little over 3" in the shade.
1/9/2013 7:00 AM 0.00 0.0 M 1.0 M bare patches in the sun, 3" in the shade.
1/10/2013 7:00 AM 0.00 0.0 M 0.5 M Bare areas in the sun, about 2" in the shade.
1/11/2013 7:00 AM 0.00 0.0 M 0.5 M bare; areas in the sun, 2-2.5 in the shade
1/12/2013 8:00 AM T 0.1 M 0.5 M may have been a brief flurry during the day (morning then later, but not here to see). Snow fell towards morning, 6 an S-- at 0800 when ob taken.
1/13/2013 7:00 AM T 0.1 M 0.5 M off and on very light snow in the day into the night. low of -1
1/14/2013 7:00 AM T 0.1 M 0.5 M flurries began late afternoon, then period of S-- to S- peaking around 6-8pm.
1/15/2013 7:00 AM T T M 0.5 M a few flurries 0700-0800.
1/16/2013 7:00 AM 0.00 0.0 M 0.5 M Bare areas in the sun, still over 2" in the shade of solid snow cover
1/17/2013 7:00 AM 0.00 0.0 M T M First time over 50 in awhile, leaving only a trace of snow in the sun, but still 2" in the shade.
1/18/2013 7:00 AM 0.00 0.0 M T M
1/19/2013 7:00 AM 0.00 0.0 M T M
1/20/2013 7:00 AM 0.00 0.0 M T M
1/21/2013 7:00 AM 0.00 0.0 M T M about an inch left in the shade
1/22/2013 7:00 AM 0.00 0.0 M T M about an inch left in the shade
1/23/2013 7:00 AM 0.00 0.0 M T M about an inch left in the shade
1/24/2013 7:00 AM 0.00 0.0 M T M about half an inch left in the shade, hi of 64 yesterday
1/25/2013 7:00 AM 0.00 0.0 M 0.0 M
1/26/2013 7:00 AM 0.00 0.0 M 0.0 M
1/27/2013 7:00 AM 0.01 0.0 M 0.0 M report based on nearby CoCoRaHS sites
1/28/2013 7:00 AM 0.00 0.0 M 0.0 M
1/29/2013 7:00 AM 0.22 4.0 M 4.0 M Precip began as snow mid afternoon, 2.0" with 0.16" by 7pm (about an inch falling in an hour or so ending by ~430pm), then another 2.0" overnight (0.06")
1/30/2013 7:00 AM 0.00 0.0 M 2.0 M 3.0 in the shade
1/31/2013 7:00 AM 0.00 0.0 M 1.0 M 2.0 in the shade
2/1/2013 7:00 AM 0.00 0.0 M 0.5 M still 2" left in the shade
2/2/2013 7:00 AM 0.00 0.0 M T M about a half inch in the shade
2/3/2013 7:00 AM 0.00 0.0 M T M about a half inch in the shade
2/4/2013 7:00 AM 0.00 0.0 M T M now less than a half inch in the shade
2/5/2013 7:00 AM 0.00 0.0 M T M just a little snow left in the shade
2/6/2013 7:00 AM 0.00 0.0 M T M little bit of snow left in the shade
2/7/2013 7:00 AM T T M 0.0 M off and on R- to R-- ~530-~730pm. Overnight a few snow pellets on the porch.
2/8/2013 7:00 AM 0.00 0.0 M 0.0 M
2/9/2013 7:00 AM 0.00 0.0 M 0.0 M
2/10/2013 7:00 AM T 0.1 M T M believe the snow fell during the afternoon. Nothing after 10pm.
2/11/2013 7:00 AM 0.01 0.2 M T M a brief few flurries at 1230. Then clouded up again in the evening with sw- by 2230, increasing at times overnight with most of the 0.2" by 0400.
2/12/2013 7:00 AM T T M 0.0 M snow flurries at least in the morning
2/13/2013 7:00 AM 0.00 0.0 M 0.0 M
2/14/2013 7:00 AM 0.00 0.0 M 0.0 M
2/15/2013 7:00 AM 0.10 2.0 M 2.0 M report based mainly on nearby CoCoRaHS sites
2/16/2013 7:00 AM 0.00 0.0 M 0.5 M snow depth estimated
2/17/2013 7:00 AM 0.00 0.0 M 0.0 M
2/18/2013 7:00 AM 0.00 0.0 M 0.0 M
2/19/2013 7:00 AM 0.00 0.0 M 0.0 M
2/20/2013 7:00 AM 0.00 0.0 M 0.0 M
2/21/2013 7:00 AM 0.40 3.9 M 4.0 M snow began around 4pm, 0.3 by 5pm, another 2.5 by midnight (with 0.30 melted for this first 2.8" of snow), then another 1.1 overnight with 0.10 surprisingly dense snow!
2/22/2013 7:00 AM 0.08 0.8 M 4.0 M S- to S-- 0700 to ~1000 (0.6"/0.05"), then some flurries, then another period of S-- to S- from ~1530 to ~1830 (0.3"/.03"). Few flurries after that but over before midnight.
2/23/2013 7:00 AM 0.00 0.0 M 3.0 M
2/24/2013 7:00 AM 0.12 2.0 M 4.5 M S-- began around 2115, then increased with ~0.5 to 1" by 2330, but then went back to S-- mainly overnight until ~0600. S at 0700 and 27.
2/25/2013 7:00 AM 0.31 5.6 M 9.0 M storm totals 7..6/0.43" For Sunday: 0700-0945 2.8/0.18 0945-1200 2.0/0.09 1200-1730 0.6/0.02 1730-2200 0.2/0.02 (very small flakes at the end) Quite a bit of wind and drifting mainly ~0900-1300 with drifts over a foot
2/26/2013 7:00 AM 0.00 0.0 M 6.0 M
2/27/2013 7:00 AM 0.06 0.7 M 6.0 M S- to S-- began about 0700 and continued into the early afternoon. Measured at end of day on old snowpack
2/28/2013 7:00 AM 0.00 0.0 M 5.5 M
3/1/2013 7:00 AM 0.00 0.0 M 4.0 M snow depth estimated
3/2/2013 7:00 AM 0.00 0.0 M 3.0 M 5" in the shade.
3/3/2013 7:00 AM 0.00 0.0 M 2.0 M
3/4/2013 7:00 AM 0.00 0.0 M T M most snow melted in the sun, 2" left in the shade, high of 60 sunday
3/5/2013 7:00 AM 0.17 3.4 M 3.0 M snow came down hard mainly in the afternoon, clear by 7pm
3/6/2013 7:00 AM 0.00 0.0 M 0.5 M
3/7/2013 7:00 AM 0.00 0.0 M T M 2" left in the shade
3/8/2013 7:00 AM 0.00 0.0 M T M 1" left in the shade
3/9/2013 7:00 AM 0.16 1.3 M 1.5 M snow began a little after 0400, mainly S- though just increased at 0700 to S. 0.6" by 0500. temp of 32
3/10/2013 7:00 AM 0.31 3.6 M 3.5 M storm total - a disappointing but still useful 4.9" with 0.47" melted Sat's totals: 0700-1200 2.4"/0.20; 1200-1500 1.0" then 1500 until end ~1700 0.2", 0.11 > 1200. Lots of melting on wood/pavement,hi 33.
3/11/2013 7:00 AM 0.00 0.0 M 1.5 M
3/12/2013 7:00 AM 0.26 3.2 M 3.0 M snow began as SW- about 1730, S- by ~1830, by 2200 had 1.5"/0.09, then overnight another 1.7 (still melting). Still had S at times just before 0700.
3/13/2013 7:00 AM 0.01 0.3 M 1.0 M snow ended by 1000. Most accumulation ended earlier. About 4" of snow left in the shade.
3/14/2013 7:00 AM 0.00 0.0 M T M Dramatic warmup into the 60s melted all snow in the sunny areas, but still solid 2" left in the shade.
3/15/2013 7:00 AM 0.00 0.0 M T M about 0.5" left in the shade.
3/16/2013 7:00 AM 0.00 0.0 M 0.0 M
3/17/2013 7:00 AM 0.00 0.0 M 0.0 M
3/18/2013 7:00 AM 0.00 0.0 M 0.0 M
3/19/2013 7:00 AM 0.00 0.0 M 0.0 M
3/20/2013 7:00 AM 0.00 0.0 M 0.0 M
3/21/2013 7:00 AM 0.00 0.0 M 0.0 M
3/22/2013 7:00 AM 0.03 0.0 M 0.0 M First thunder of the season, brief heavy shower around 230pm, not sure if there was any small hail
3/23/2013 7:00 AM 0.55 7.2 M 7.0 M report based on 3 day precip total and nearby CoCoRaHS sites
3/24/2013 7:00 AM 0.34 3.6 M 7.0 M report based on 3 day precip total and nearby CoCoRaHS sites
3/25/2013 7:00 AM 0.01 0.1 M 6.0 M report based on 3 day precip total and nearby CoCoRaHS sites
3/26/2013 7:00 AM 0.00 0.0 M 4.0 M snow depth estimated
3/27/2013 7:00 AM 0.00 0.0 M 2.0 M snow depth estimated
3/28/2013 7:00 AM 0.00 0.0 M T M solid 2 to 3" left in the shade
3/29/2013 7:00 AM T 0.0 M T M Brief shower around 7pm. A little snow left in the shade.
3/30/2013 7:00 AM 0.00 0.0 M 0.0 M
3/31/2013 7:00 AM T 0.0 M 0.0 M
4/1/2013 7:00 AM 0.00 0.0 M 0.0 M
4/2/2013 7:00 AM 0.03 0.0 M 0.0 M off and on R- to R-- from about 1700 through 2200 then up to R for a bit that may have been mixed with some wet snow flakes but not sure
4/3/2013 7:00 AM 0.48 T M 0.0 M wet snow during the day but no accumulation turned to all rain by 7pm, mixed at times during heavier periods of rain 8-10pm. Most precip over by mdnight
4/4/2013 7:00 AM 0.00 0.0 M 0.0 M
4/5/2013 7:00 AM 0.00 0.0 M 0.0 M
4/6/2013 7:00 AM 0.00 0.0 M 0.0 M
4/7/2013 7:00 AM 0.00 0.0 M 0.0 M
4/8/2013 7:00 AM 0.00 0.0 M 0.0 M
4/9/2013 7:00 AM 0.24 3.8 M 3.5 M a few sprinkles ~1800-1930 then precip picked up and was S- right away, maybe a little rain mixed in for a few minutes. but stayed S- sometimes S-- and a few times S until increased after 0400. By 2230 had 0.13"/0.8" snow then very fluffy after that. 16 and S- at 0700.
4/10/2013 7:00 AM 0.13 3.5 M 3.0 M off and on snow all day long, moderate at times, very light at times, finally over by ~ midnight with a low and temp of 5 at 0700. Very fluffy snow with a high of 22. Storm total 7.3/0.37"
4/11/2013 7:00 AM T T M T M some flurries around 0800 and then again mid to late afternoon. About 2" snow cover left in the shade.
4/12/2013 7:00 AM T 0.0 M 0.0 M some sprinkles around 6-8pm
4/13/2013 7:00 AM 0.00 0.0 M 0.0 M
4/14/2013 7:00 AM 0.12 0.0 M 0.0 M
4/15/2013 7:00 AM 0.16 1.6 M 1.5 M mostly clear at 2100 became cloudy by just after midnight. Not sure when snow began but S and 28 at 0700.
4/16/2013 7:00 AM 1.15 16.1 M 12.5 M Wow - had 1.9 new between 0700-0930 then slowed down before increasing in the afternoon with 7.5 0930-1730, then another 6.3 with S to S+ until 2200, tapered off towards 2300
4/17/2013 7:00 AM 0.09 0.2 M 7.0 M A few flurries seen in the morning otherwise S-- ocnl S- from ~1800 to 2200 with 0.1" new then more freezing drizzle then snow overnight with about 0.1" of glaze. 27 and S-- at 0700
4/18/2013 7:00 AM 0.38 5.7 M 8.0 M low of 8. Snow 0700-1200 2.1/0.13, 1200-1700 3.0/0.23, 1700-2300 0.5/0.02 then 0.1/T with snow ending probably just after midnight
4/19/2013 7:00 AM 0.00 0.0 M 4.0 M snow continues to melt slowly from below as well with a decrease of a half an inch overnight. About 6" in the shade.
4/20/2013 7:00 AM 0.00 0.0 M 0.5 M bare areas in the sun, 2-4" in the shade
4/21/2013 7:00 AM 0.00 0.0 M T M no snow left in the sunny areas but 0.5 to 2" in the shade.
4/22/2013 7:00 AM 0.00 0.0 M 0.0 M
4/23/2013 7:00 AM 0.84 7.9 M 6.0 M Not sure when snow began, but S ocnl S- at 1400 with 2.1"/0.28", then additional 1.0 by 1700, snow became S with a little S+ with another 2.8" by 2215 (1400-2215 pcpn total 0.31"), then S- thereafter with 2.0 with small flakes yielding 0.25 melted
4/24/2013 7:00 AM 0.05 0.9 M 2.0 M more left in the shade. Lots of melting tho hi only 35. S- dropped the snow by 0900, then flurries until about 1100 even with lots of sun by then.
4/25/2013 7:00 AM 0.00 0.0 M T M most snow gone in the sun but solid 1" or so in the shade.
4/26/2013 7:00 AM 0.00 0.0 M T M no snow most areas but .5 to 1 inch left in areas of total shade.
4/27/2013 7:00 AM 0.00 0.0 M 0.0 M
4/28/2013 7:00 AM 0.00 0.0 M 0.0 M hi of 77
4/29/2013 7:00 AM 0.00 0.0 M 0.0 M warmest day of the year so far sunday with a hi of 81
4/30/2013 7:00 AM 0.00 0.0 M 0.0 M
5/1/2013 7:00 AM 0.68 2.4 M 2.5 M 0.18" of rain before it mostly changed over to snow ~1040pm; only about an inch of snow around 0400. 0.50 more precip for 2.4 so probably some rain involved after 1040pm.
5/2/2013 7:00 AM 0.63 8.4 M 6.5 M New snow season record for me (records just east of Boulder city since winter of 1980-81) with 109.4 new total, breaking old record of 105.9 in winter of 1996-97. Storm total 10.8 with 1." melted. Snow pretty much ended by 2230 (0.1" after that)
5/3/2013 7:00 AM 0.00 0.0 M 0.5 M bare areas to an inch of snow in the sun but about 3" in the shade
5/4/2013 7:00 AM 0.00 0.0 M T M a little snow left only in the shade
5/5/2013 7:00 AM 0.00 0.0 M 0.0 M
5/6/2013 7:00 AM 0.00 0.0 M 0.0 M
5/7/2013 7:00 AM 0.00 0.0 M 0.0 M
5/8/2013 7:00 AM 0.03 0.0 M 0.0 M off and on R-/R-- beginning around 6pm
5/9/2013 7:00 AM 0.48 0.0 M 0.0 M 0.03" fell during some brief but robust morning showers around 0830, then most of the rain fell between about 1600-2000, with some thunder around 1700, another 0.01" after midnight
5/10/2013 7:00 AM 0.15 0.0 M 0.0 M morning showers around 0830 dropped 0.03", the rest fell during the mid afternoon
5/12/2013 7:00 AM T 0.0 M 0.0 M rumbles of thunder off and on during the afternoon but only some sprinkles around 5pm
5/13/2013 7:00 AM 0.00 0.0 M 0.0 M
5/15/2013 7:00 AM 0.00 0.0 M 0.0 M
5/16/2013 7:00 AM T 0.0 M 0.0 M off and on R-- with ocnl R- from about 7 to 11pm. Some thunder in the late afternoon.
5/17/2013 7:00 AM T 0.0 M 0.0 M showers of light rain off and on amidst lots of sun from ~6-645pm
5/18/2013 7:00 AM 0.00 0.0 M 0.0 M
5/19/2013 7:00 AM 0.00 0.0 M 0.0 M
5/20/2013 7:00 AM 0.03 0.0 M 0.0 M R- to R-- pretty steady began about 4am and still going on at 7am
5/21/2013 7:00 AM 0.02 0.0 M 0.0 M morning R- to R-- ended by ~0800 then showers at times during the day with sprinkles into the evening
5/22/2013 7:00 AM 0.00 0.0 M 0.0 M
5/30/2013 7:00 AM 0.36 0.0 M 0.0 M
6/3/2013 7:00 AM T 0.0 M 0.0 M few sprinkles around 6pm
6/4/2013 7:00 AM 0.00 0.0 M 0.0 M
6/5/2013 7:00 AM 0.26 0.0 M 0.0 M a few sprinkles early afternoon (T), then 0.01" in a shower around 1730-1800, then showers with a little thunder increased after 2015, with 0.13 more by 2200 and the rest overnight. 45 this morning at 0700.
6/6/2013 7:00 AM 0.01 0.0 M 0.0 M pretty sure light precip was in the morning
6/9/2013 7:00 AM T 0.0 M 0.0 M off and on light showers from around noon through ~8pm. Mostly R-- with a little R-
6/10/2013 7:00 AM 0.00 0.0 M 0.0 M
6/11/2013 7:00 AM 0.00 0.0 M 0.0 M
6/12/2013 7:00 AM 0.00 0.0 M 0.0 M high of 99 but a low this morning all the way down to 53. Yesterday's low was not bad at 56
6/14/2013 7:00 AM T 0.0 M 0.0 M thundershower with R- around 1745-1815
6/21/2013 7:00 AM 0.00 0.0 M 0.0 M
6/22/2013 7:00 AM 0.00 0.0 M 0.0 M late aftn/early evening gusty winds and nearby sprinles
6/23/2013 7:00 AM T 0.0 M 0.0 M some thunder mid aftn but no rain, then a few sprinklyes around 4pm
6/24/2013 7:00 AM 0.01 0.0 M 0.0 M A real shower with big drops and thunder around 4pm, but still only 0.01" Then rounds of storms that just missed, with thunder off and on from about 8pm to 11pm, with trace of rain in a couple of light showers
6/26/2013 7:00 AM 0.00 0.0 M 0.0 M
6/27/2013 7:00 AM 0.00 0.0 M 0.0 M
6/28/2013 7:00 AM 0.00 0.0 M 0.0 M Hit 100 for a high
7/3/2013 7:00 AM 0.00 0.0 M 0.0 M low of 52 again this morning
7/4/2013 7:00 AM 0.00 0.0 M 0.0 M
7/5/2013 7:00 AM 0.00 0.0 M 0.0 M
7/8/2013 7:00 AM T 0.0 M 0.0 M Heard a few drops of rain around 3am. May have been a trace earlier in the day as well.
7/9/2013 7:00 AM 0.00 0.0 M 0.0 M
7/11/2013 7:00 AM 0.00 0.0 M 0.0 M
7/12/2013 7:00 AM 0.03 0.0 M 0.0 M Painstakingly slow appraching storm seen south of us before 7pm finally dropped some R- (T) from around 9pm-11pm with thunder, but .03" fell starting around 1130pm.
7/13/2013 7:00 AM 0.15 0.0 M 0.0 M 0.15" in showers and tstsms about 3pm-10pm
7/14/2013 7:00 AM 0.05 0.0 M 0.0 M still no good rain - hours of thunder beginning ~1330 and finally ending around 2000 with a nice rainbow. T of rain by 1700, most fell between 1830-1930
7/15/2013 7:00 AM 0.01 0.0 M 0.0 M Frustratingly humid yet not a drop all day, finally barely .01 after 11pm.
7/16/2013 7:00 AM 0.00 0.0 M 0.0 M May have been a trace around 2pm but not home to see it, once again missed the rains, this time by only a few miles
7/18/2013 7:00 AM 0.00 0.0 M 0.0 M
7/21/2013 7:00 AM 0.00 0.0 M 0.0 M
7/22/2013 7:00 AM 0.00 0.0 M 0.0 M
7/23/2013 7:00 AM 0.00 0.0 M 0.0 M
7/25/2013 7:00 AM 0.00 0.0 M 0.0 M May have had a trace but not there to see it.
7/26/2013 7:00 AM 0.76 0.0 M 0.0 M Finally some good rain! Heavy tstsm mid afternoon.
7/27/2013 7:00 AM 0.01 0.0 M 0.0 M a light shower just before 1500 (T) then another shower with some thunder 1630-1700
7/28/2013 7:00 AM 0.41 0.0 M 0.0 M thunderstorm between about 1930-2030
7/29/2013 7:00 AM 0.01 0.0 M 0.0 M most of the day in the 60s with drizzle at times until noon (T) then a bit of R- to R-- until about 1500.
7/30/2013 7:00 AM 0.03 0.0 M 0.0 M drizzle and fog in the morning then some showers, everything over by about 1600.
7/31/2013 7:00 AM 0.10 0.0 M 0.0 M caught the edge of a tstm 1800-1900
8/1/2013 7:00 AM 0.00 0.0 M 0.0 M
8/2/2013 7:00 AM 0.04 0.0 M 0.0 M mid aftn tstm
8/4/2013 7:00 AM 0.17 0.0 M 0.0 M very threatening skies and gusty winds at times from ~1700-1800 but little rain then, most fell 1830-1930LT
8/5/2013 7:00 AM T 0.0 M 0.0 M some late afternoon sprinkles
8/6/2013 7:00 AM 0.03 0.0 M 0.0 M 0.02" in late afternoon shower, then some showers just before 9pm dropped another 0.01
8/7/2013 7:00 AM 0.02 0.0 M 0.0 M
8/8/2013 7:00 AM T 0.0 M 0.0 M so many clouds but so little rain. R- to R-- began shortly after 0700 but probably ended not long after 0800.
8/9/2013 7:00 AM T 0.0 M 0.0 M may have been some morning sprinkles. otherwise some R- around 2200 with lightning to the north but no thunder here
8/11/2013 7:00 AM 0.04 0.0 M 0.0 M
8/18/2013 7:00 AM 0.00 0.0 M 0.0 M Hi of 93
8/19/2013 7:00 AM T 0.0 M 0.0 M some off and on thunder early to mid afternoon with a few sprinkles and a main 10 min or so period of R- around 1330-1400, also one brief wind gust
8/22/2013 7:00 AM 0.13 0.0 M 0.0 M tstm around 6pm to 630pm
8/23/2013 7:00 AM 0.02 0.0 M 0.0 M Nasty looking storm slipped to the south so only got a little precip with thunder 1725-1800.
8/24/2013 7:00 AM 0.02 0.0 M 0.0 M late aftn tstm
8/27/2013 7:00 AM T 0.0 M 0.0 M Thought there would be more - lots of lightning around 2000-2300 with some close thunder around 2230 but only a little more than a trace of rain (just under .01)
8/28/2013 7:00 AM 0.00 0.0 M 0.0 M
8/29/2013 7:00 AM 0.00 0.0 M 0.0 M
8/30/2013 7:00 AM T 0.0 M 0.0 M Brief shower around 9pm
8/31/2013 7:00 AM T 0.0 M 0.0 M More sprinkles, no thunder, mainly 7-730pm
9/1/2013 7:00 AM 0.01 0.0 M 0.0 M Off and on sprinkles much of Sat afternoon but no thunder (T). Then overnight thunder around 3 am then a period of R- sometime after 4am.
9/2/2013 7:00 AM 0.00 0.0 M 0.0 M hi of only 77
9/3/2013 7:00 AM 0.00 0.0 M 0.0 M Hit 90
9/4/2013 7:00 AM 0.00 0.0 M 0.0 M hi of 93 then a low of 63 this am. Thunder and lightning last evening around 2030-2130 but no rain.
9/5/2013 7:00 AM 0.00 0.0 M 0.0 M Lots of clouds but no rain, kept it down to 87
9/6/2013 7:00 AM 0.00 0.0 M 0.0 M Back to a high of 93
9/7/2013 7:00 AM 0.00 0.0 M 0.0 M
9/8/2013 7:00 AM 0.00 0.0 M 0.0 M
9/9/2013 7:00 AM 0.00 0.0 M 0.0 M
9/10/2013 7:00 AM 1.70 M M M M Biggest rain of the season. Rain began about 1730 then became heavy with close lightning ~1800-1900, then R- some thunder then thunder, some very close and never really stopping, with rain heavy at times, from 1930-~2200, then more rain until 2300. 0.81" by 1900, another 0.82" by 2300. Another 0.07" after 2300 but over before 0600 Tue.
9/11/2013 7:00 AM 0.83 0.0 M 0.0 M 0.31 fell tue morning (probably by 1000) then mainly a trace through 1800, another 0.01" by 2100, the rest overnight. Steady R- to R at 0700 and 58
9/12/2013 7:00 AM 5.87 0.0 M 0.0 M Storm total now 8.40" since start around 1700 Monday. Yesterday's crazy breakdown: 0700-1900 1.41" (About 0.8" after 1700), 1900-2200 2.35", 2200-2300 0.36", 2300-0100 0.89", 0100-0200 0.13", then 0200-0700 0.73" At 0700 R- and 58 (low of 58).
9/13/2013 7:00 AM 3.51 0.0 M 0.0 M Another crazy day but thankfully little rain over night. Storm total is now 11.91". Breakdown as follows: 0700-1200 0.23"; 1200-1435 0.65", 1435-1500 0.93 (no thunder); 1500-1700 0.72"; 1700-1930 0.73"; 1930-2330 0.23"; 2330-0700 0.02"
9/14/2013 7:00 AM 0.09 0.0 M 0.0 M 0.08" in morning rain that was pretty much over by 10am, then lots of sun. This put me at a storm total of 11.99" but then another 0.01 fell in a thundershower around 5pm and another shower around 630pm to bring the total since late Monday to an even 12.00, one foot of rain. Yikes!
9/15/2013 7:00 AM 0.05 0.0 M 0.0 M a trace during the early to mid aftn, then another in the evening, some thunder and lightning around 830pm but no precip, then R- began around 10pm.
9/16/2013 7:00 AM 1.42 0.0 M 0.0 M some morning drizzle then rain became harder a little after 1000 with 0.80" by noon (when some thunder heard). Another 0.43" by 1700, .02" by 2230, then overnight another 0.19". 53 and moderate drizzle with ocnl R- at 0700
9/17/2013 7:00 AM 0.04 0.0 M 0.0 M More rain in the morning before 1000, lots of small drops light to moderate at times, but then SUN! FINAL TOTAL = 13.51". I'll have to check the records to see if that equals one of my yearly totals since 1980.
9/18/2013 7:00 AM 0.00 0.0 M 0.0 M
9/19/2013 7:00 AM 0.02 0.0 M 0.0 M
9/20/2013 7:00 AM 0.00 0.0 M 0.0 M
9/21/2013 7:00 AM 0.00 0.0 M 0.0 M
9/22/2013 7:00 AM 0.00 0.0 M 0.0 M
9/23/2013 7:00 AM 0.52 0.0 M 0.0 M
9/24/2013 7:00 AM 0.00 0.0 M 0.0 M
9/25/2013 7:00 AM 0.00 0.0 M 0.0 M
9/26/2013 7:00 AM 0.00 0.0 M 0.0 M
9/27/2013 7:00 AM 0.02 0.0 M 0.0 M drizzle and R- began before 0700, ongoing at 0700.
9/28/2013 7:00 AM 0.36 0.0 M 0.0 M light to moderate frost on the roofs with a low of 32 (briefly though). Thin ice on one bird bath but none on a couple of others, looks like possible light damage in the garden. Rain ended by ~8-9pm and was almost clear by 10pm.
9/29/2013 7:00 AM 0.00 0.0 M 0.0 M low of 38
9/30/2013 7:00 AM 0.00 0.0 M 0.0 M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground