Station Overview Station Location
Station Number CO-BO-8 Latitude 39.9925
Station Name Lafayette 0.4 WSW Longitude -105.1057
County Boulder Elevation (ft) 5285



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 10 1.12 0.62 31 0.62 31 0.00 0 0 7 4 0.0 0 0
Nov 10 0.95 0.53 30 0.53 30 0.00 0 0 7 4 2.3 6 2
Dec 10 0.70 0.30 31 0.30 31 0.00 0 0 2 4 5.2 1 1
Jan 11 0.49 0.40 31 0.40 31 0.00 0 0 2 6 7.8 3 15
Feb 11 0.47 0.70 28 0.70 28 0.00 0 0 6 5 11.2 8 11
March 11 1.56 0.22 31 0.22 31 0.00 0 0 5 3 0.8 1 1
April 11 2.01 2.04 30 2.04 30 0.00 0 0 12 3 3.1 4 2
May 11 2.25 4.51 31 4.51 31 0.00 0 0 12 1 0.0 0 0
June 11 1.88 0.89 30 0.89 30 0.00 0 0 4 5 0.0 0 0
July 11 1.54 2.72 31 2.72 31 0.00 0 0 16 4 0.0 0 0
Aug 11 1.65 0.37 31 0.37 31 0.00 0 0 5 8 0.0 0 0
Sept 11 1.40 1.46 30 1.46 30 0.00 0 0 7 3 0.0 0 0
Water Year Totals: 16.02" 14.76" 365 days 14.76" 365 0.00" 0 days 0 85 days 50 days 30.4" 23 days 32 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
10/1/2010 0.00
10/2/2010 0.00
10/3/2010 0.00
10/4/2010 0.00
10/5/2010 0.00
10/6/2010 0.00
10/7/2010 0.11
10/8/2010 0.01
10/9/2010 0.00
10/10/2010 0.00
10/11/2010 0.12
10/12/2010 0.08
10/13/2010 0.28
10/14/2010 0.00
10/15/2010 0.00
10/16/2010 0.00
10/17/2010 0.00
10/18/2010 0.00
10/19/2010 0.01
10/20/2010 0.00
10/21/2010 0.00
10/22/2010 0.00
10/23/2010 0.01
10/24/2010 T
10/25/2010 T
10/26/2010 T
10/27/2010 0.00
10/28/2010 0.00
10/29/2010 0.00
10/30/2010 0.00
10/31/2010 T
11/1/2010 0.12
11/2/2010 0.00
11/3/2010 0.00
11/4/2010 0.00
11/5/2010 0.00
11/6/2010 0.00
11/7/2010 0.00
11/8/2010 T
11/9/2010 0.00
11/10/2010 0.24
11/11/2010 0.09
11/12/2010 0.02
11/13/2010 0.00
11/14/2010 T
11/15/2010 T
11/16/2010 0.01
11/17/2010 0.03
11/18/2010 0.00
11/19/2010 0.00
11/20/2010 0.00
11/21/2010 0.00
11/22/2010 0.02
11/23/2010 0.00
11/24/2010 0.00
11/25/2010 0.00
11/26/2010 0.00
11/27/2010 0.00
11/28/2010 0.00
11/29/2010 T
11/30/2010 0.00
12/1/2010 0.00
12/2/2010 0.00
12/3/2010 0.00
12/4/2010 0.00
12/5/2010 0.00
12/6/2010 0.00
12/7/2010 0.00
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.00
12/11/2010 T
12/12/2010 0.00
12/13/2010 0.00
12/14/2010 0.00
12/15/2010 0.00
12/16/2010 0.01
12/17/2010 T
12/18/2010 T
12/19/2010 0.00
12/20/2010 0.00
12/21/2010 0.00
12/22/2010 0.00
12/23/2010 0.00
12/24/2010 T
12/25/2010 0.00
12/26/2010 0.00
12/27/2010 0.00
12/28/2010 0.00
12/29/2010 0.00
12/30/2010 0.00
12/31/2010 0.29
Day of YearDaily PrcpMultiday Prcp
1/1/2011 T
1/2/2011 0.00
1/3/2011 0.00
1/4/2011 0.00
1/5/2011 0.00
1/6/2011 0.00
1/7/2011 0.00
1/8/2011 0.00
1/9/2011 T
1/10/2011 0.30
1/11/2011 0.00
1/12/2011 0.00
1/13/2011 0.00
1/14/2011 0.00
1/15/2011 0.00
1/16/2011 0.00
1/17/2011 T
1/18/2011 T
1/19/2011 0.00
1/20/2011 0.10
1/21/2011 0.00
1/22/2011 0.00
1/23/2011 0.00
1/24/2011 0.00
1/25/2011 0.00
1/26/2011 T
1/27/2011 0.00
1/28/2011 0.00
1/29/2011 0.00
1/30/2011 0.00
1/31/2011 T
2/1/2011 0.08
2/2/2011 T
2/3/2011 0.00
2/4/2011 0.03
2/5/2011 T
2/6/2011 0.32
2/7/2011 0.02
2/8/2011 0.18
2/9/2011 0.07
2/10/2011 0.00
2/11/2011 0.00
2/12/2011 0.00
2/13/2011 0.00
2/14/2011 0.00
2/15/2011 0.00
2/16/2011 0.00
2/17/2011 0.00
2/18/2011 0.00
2/19/2011 0.00
2/20/2011 T
2/21/2011 0.00
2/22/2011 0.00
2/23/2011 0.00
2/24/2011 0.00
2/25/2011 T
2/26/2011 T
2/27/2011 0.00
2/28/2011 0.00
3/1/2011 0.00
3/2/2011 0.00
3/3/2011 0.00
3/4/2011 T
3/5/2011 0.00
3/6/2011 0.00
3/7/2011 0.01
3/8/2011 T
3/9/2011 T
3/10/2011 0.00
3/11/2011 0.00
3/12/2011 0.00
3/13/2011 0.07
3/14/2011 0.00
3/15/2011 0.00
3/16/2011 0.00
3/17/2011 0.00
3/18/2011 0.03
3/19/2011 0.00
3/20/2011 0.00
3/21/2011 0.00
3/22/2011 0.00
3/23/2011 0.00
3/24/2011 0.00
3/25/2011 0.00
3/26/2011 0.00
3/27/2011 0.00
3/28/2011 0.01
3/29/2011 0.10
3/30/2011 0.00
3/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.00
4/2/2011 0.00
4/3/2011 0.00
4/4/2011 0.21
4/5/2011 0.00
4/6/2011 0.00
4/7/2011 0.02
4/8/2011 0.00
4/9/2011 0.00
4/10/2011 0.24
4/11/2011 0.00
4/12/2011 0.00
4/13/2011 0.00
4/14/2011 0.75
4/15/2011 0.09
4/16/2011 0.00
4/17/2011 0.00
4/18/2011 0.00
4/19/2011 0.20
4/20/2011 0.01
4/21/2011 0.01
4/22/2011 0.13
4/23/2011 T
4/24/2011 T
4/25/2011 0.34
4/26/2011 T
4/27/2011 0.02
4/28/2011 0.00
4/29/2011 0.00
4/30/2011 0.02
5/1/2011 0.00
5/2/2011 T
5/3/2011 0.00
5/4/2011 0.00
5/5/2011 0.00
5/6/2011 0.00
5/7/2011 0.00
5/8/2011 0.00
5/9/2011 0.00
5/10/2011 0.00
5/11/2011 0.67
5/12/2011 1.07
5/13/2011 0.09
5/14/2011 0.00
5/15/2011 0.19
5/16/2011 0.02
5/17/2011 0.00
5/18/2011 0.01
5/19/2011 1.75
5/20/2011 0.51
5/21/2011 0.07
5/22/2011 0.00
5/23/2011 0.00
5/24/2011 0.08
5/25/2011 0.04
5/26/2011 0.00
5/27/2011 0.00
5/28/2011 0.00
5/29/2011 0.01
5/30/2011 0.00
5/31/2011 0.00
6/1/2011 0.00
6/2/2011 0.00
6/3/2011 0.00
6/4/2011 0.00
6/5/2011 0.00
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.11
6/10/2011 0.03
6/11/2011 0.00
6/12/2011 0.00
6/13/2011 0.00
6/14/2011 0.00
6/15/2011 0.00
6/16/2011 0.00
6/17/2011 0.01
6/18/2011 T
6/19/2011 0.00
6/20/2011 0.74
6/21/2011 T
6/22/2011 0.00
6/23/2011 0.00
6/24/2011 T
6/25/2011 T
6/26/2011 0.00
6/27/2011 0.00
6/28/2011 0.00
6/29/2011 0.00
6/30/2011 T
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.13
7/2/2011 0.09
7/3/2011 0.00
7/4/2011 0.00
7/5/2011 0.00
7/6/2011 0.03
7/7/2011 0.03
7/8/2011 0.45
7/9/2011 0.03
7/10/2011 0.46
7/11/2011 0.22
7/12/2011 0.20
7/13/2011 0.21
7/14/2011 0.50
7/15/2011 0.01
7/16/2011 T
7/17/2011 0.09
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 0.04
7/21/2011 T
7/22/2011 0.00
7/23/2011 0.00
7/24/2011 0.00
7/25/2011 0.00
7/26/2011 0.00
7/27/2011 0.15
7/28/2011 0.08
7/29/2011 T
7/30/2011 T
7/31/2011 0.00
8/1/2011 T
8/2/2011 0.00
8/3/2011 0.05
8/4/2011 T
8/5/2011 T
8/6/2011 0.00
8/7/2011 0.00
8/8/2011 0.00
8/9/2011 0.00
8/10/2011 0.00
8/11/2011 T
8/12/2011 0.00
8/13/2011 0.00
8/14/2011 0.00
8/15/2011 0.07
8/16/2011 0.00
8/17/2011 0.12
8/18/2011 0.00
8/19/2011 0.00
8/20/2011 0.10
8/21/2011 0.00
8/22/2011 0.00
8/23/2011 T
8/24/2011 0.00
8/25/2011 0.00
8/26/2011 T
8/27/2011 T
8/28/2011 0.00
8/29/2011 0.03
8/30/2011 0.00
8/31/2011 T
9/1/2011 0.00
9/2/2011 T
9/3/2011 T
9/4/2011 0.00
9/5/2011 0.00
9/6/2011 0.00
9/7/2011 0.03
9/8/2011 0.40
9/9/2011 0.00
9/10/2011 0.00
9/11/2011 0.00
9/12/2011 0.00
9/13/2011 0.10
9/14/2011 0.08
9/15/2011 0.81
9/16/2011 0.01
9/17/2011 0.00
9/18/2011 T
9/19/2011 0.00
9/20/2011 0.00
9/21/2011 0.00
9/22/2011 0.03
9/23/2011 0.00
9/24/2011 0.00
9/25/2011 0.00
9/26/2011 0.00
9/27/2011 0.00
9/28/2011 0.00
9/29/2011 0.00
9/30/2011 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2010 7:00 AM 0.00 0.0 M 0.0 M
10/2/2010 7:00 AM 0.00 0.0 M 0.0 M
10/3/2010 7:00 AM 0.00 0.0 M 0.0 M
10/4/2010 7:00 AM 0.00 0.0 M 0.0 M
10/5/2010 7:00 AM 0.00 0.0 M 0.0 M showers in area early aftn, but radar suggested none, and saw no evidence of any, at my location
10/6/2010 7:00 AM 0.00 0.0 M 0.0 M
10/7/2010 7:00 AM 0.11 0.0 M 0.0 M TRW- 0030-0100. Several nearby lightning strikes caused a momentary power glitch at 0050.
10/8/2010 7:00 AM 0.01 0.0 M 0.0 M
10/9/2010 7:00 AM 0.00 0.0 M 0.0 M
10/10/2010 7:00 AM 0.00 0.0 M 0.0 M
10/11/2010 7:00 AM 0.12 0.0 M 0.0 M
10/12/2010 7:00 AM 0.08 0.0 M 0.0 M
10/13/2010 7:00 AM 0.28 0.0 M 0.0 M
10/14/2010 7:00 AM 0.00 0.0 M 0.0 M
10/15/2010 7:00 AM 0.00 0.0 M 0.0 M
10/16/2010 7:00 AM 0.00 0.0 M 0.0 M
10/17/2010 7:00 AM 0.00 0.0 M 0.0 M
10/18/2010 7:00 AM 0.00 0.0 M 0.0 M
10/19/2010 7:00 AM 0.01 0.0 M 0.0 M
10/20/2010 7:00 AM 0.00 0.0 M 0.0 M heavy roof frost & iced windshields
10/21/2010 7:00 AM 0.00 0.0 M 0.0 M
10/22/2010 7:00 AM 0.00 0.0 M 0.0 M
10/23/2010 7:00 AM 0.01 0.0 M 0.0 M
10/24/2010 7:00 AM T 0.0 M 0.0 M a very light rain shower late morning
10/25/2010 7:00 AM T 0.0 M 0.0 M a few small drops on the windshield ca 1330
10/26/2010 7:00 AM T 0.0 M 0.0 M RW- w/rainbow ca 0745-0755
10/27/2010 7:00 AM 0.00 0.0 M 0.0 M very windy, then less during night w/first freeze of season
10/28/2010 7:00 AM 0.00 0.0 M 0.0 M
10/29/2010 7:00 AM 0.00 0.0 M 0.0 M
10/30/2010 7:00 AM 0.00 0.0 M 0.0 M another windy day with lots of sun - 78F max
10/31/2010 7:00 AM T 0.0 M 0.0 M RWU probably near midnight
11/1/2010 7:00 AM 0.12 0.0 M 0.0 M pre-dawn R- after a gorgeous Halloween
11/2/2010 7:00 AM 0.00 0.0 M 0.0 M
11/3/2010 7:00 AM 0.00 0.0 M 0.0 M
11/4/2010 7:00 AM 0.00 0.0 M 0.0 M
11/5/2010 7:00 AM 0.00 0.0 M 0.0 M
11/6/2010 7:00 AM 0.00 0.0 M 0.0 M
11/7/2010 7:00 AM 0.00 0.0 M 0.0 M
11/8/2010 7:00 AM T 0.0 M 0.0 M a few spits as a narrow line of clouds and wind blew through
11/9/2010 7:00 AM 0.00 0.0 M 0.0 M
11/10/2010 7:00 AM 0.24 0.2 M T M RW- 1230-1430 (E.16"), SW- 1430-1700, then a flake or two for a while
11/11/2010 7:00 AM 0.09 0.9 M 1.0 M S-- B ca 2200 0.1" by midnight & little additional accum before 0500
11/12/2010 7:00 AM 0.02 0.6 M T M no accum beyond about 0900, and snow ended ca 1000. A few flakes observed in headlights ca 2000.
11/13/2010 7:00 AM 0.00 0.0 M T M
11/14/2010 7:00 AM T T M T M just a few flakes at 8:15 p.m.
11/15/2010 7:00 AM T T M T M SW- ca 0630ff; enough to lightly whiten surfaces by 0700
11/16/2010 7:00 AM 0.01 0.1 M 0.0 M S- early
11/17/2010 7:00 AM 0.03 0.0 M 0.0 M RW- in a squall 1515-1540 .02"; R- ca2100-0030 .01"
11/18/2010 7:00 AM 0.00 0.0 M 0.0 M
11/19/2010 7:00 AM 0.00 0.0 M 0.0 M
11/20/2010 7:00 AM 0.00 0.0 M 0.0 M
11/21/2010 7:00 AM 0.00 0.0 M 0.0 M
11/22/2010 7:00 AM 0.02 0.4 M 0.5 M S- late evening. Cleared before 0300. Some gusty winds ca 0415.
11/23/2010 7:00 AM 0.00 0.0 M T M
11/24/2010 7:00 AM 0.00 0.0 M T M
11/25/2010 7:00 AM 0.00 0.0 M T M overcast until mid-afternoon; quite windy over night, calmed around 0400; a barest trace of snow in a couple of sheltered spots
11/26/2010 7:00 AM 0.00 0.0 M T M had to search for snow, but found a couple of spots still
11/27/2010 7:00 AM 0.00 0.0 M 0.0 M
11/28/2010 7:00 AM 0.00 0.0 M 0.0 M
11/29/2010 7:00 AM T 0.1 M T M SW- w/big flakes mid-evening
11/30/2010 7:00 AM 0.00 0.0 M 0.0 M
12/1/2010 7:00 AM 0.00 0.0 M 0.0 M
12/2/2010 7:00 AM 0.00 0.0 M 0.0 M
12/3/2010 7:00 AM 0.00 0.0 M 0.0 M
12/4/2010 7:00 AM 0.00 0.0 M 0.0 M 64F max
12/5/2010 7:00 AM 0.00 0.0 M 0.0 M
12/6/2010 7:00 AM 0.00 0.0 M 0.0 M
12/7/2010 7:00 AM 0.00 0.0 M 0.0 M
12/8/2010 7:00 AM 0.00 0.0 M 0.0 M
12/9/2010 7:00 AM 0.00 0.0 M 0.0 M
12/10/2010 7:00 AM 0.00 0.0 M 0.0 M another t-shirt-run day - 58F max
12/11/2010 7:00 AM T 0.0 M 0.0 M R- approx 1750-1820. A rare December rain for us - enough to run windshield wipers, but not to measure.
12/12/2010 7:00 AM 0.00 0.0 M 0.0 M
12/13/2010 7:00 AM 0.00 0.0 M 0.0 M aftn max 43F, then wind came up just before 1800, & temp rose to 50 at 2000
12/14/2010 7:00 AM 0.00 0.0 M 0.0 M another mild day (>60F)
12/15/2010 7:00 AM 0.00 0.0 M 0.0 M another 60F max
12/16/2010 7:00 AM 0.01 T M 0.0 M Mild day w/FROPA ca 1300, then brief R- late aftn, with a few snowflakes mixed in toward the end.
12/17/2010 7:00 AM T T M T M After a sunny day, SW-- ca 2130, then probably ca 01-03L. Just a dusting w/nearly nothing on pavement. A bit more near dawn.
12/18/2010 7:00 AM T T M T M SW-- until early aftn; cleared by evening. Only a skiff accumulated on grass - none on rooftops.
12/19/2010 7:00 AM 0.00 0.0 M 0.0 M
12/20/2010 7:00 AM 0.00 0.0 M 0.0 M
12/21/2010 7:00 AM 0.00 0.0 M 0.0 M
12/22/2010 7:00 AM 0.00 0.0 M 0.0 M
12/23/2010 7:00 AM 0.00 0.0 M 0.0 M fog before sunrise
12/24/2010 7:00 AM T 0.0 M 0.0 M RW- ca 1530, and probably mid-eve
12/25/2010 7:00 AM 0.00 0.0 M 0.0 M
12/26/2010 7:00 AM 0.00 0.0 M 0.0 M
12/27/2010 7:00 AM 0.00 0.0 M 0.0 M
12/28/2010 7:00 AM 0.00 0.0 M 0.0 M
12/29/2010 7:00 AM 0.00 0.0 M 0.0 M
12/30/2010 7:00 AM 0.00 0.0 M 0.0 M
12/31/2010 7:00 AM 0.29 5.2 M 5.0 M neighbor measured snow: 3.5" at 1730, +1.75" over night; .29" in gauge eve of 31st.
1/1/2011 7:00 AM T T M 3.5 M
1/2/2011 7:00 AM 0.00 0.0 M 3.5 M
1/3/2011 7:00 AM 0.00 0.0 M 3.0 M
1/4/2011 7:00 AM 0.00 0.0 M 3.0 M
1/5/2011 7:00 AM 0.00 0.0 M 3.0 M
1/6/2011 7:00 AM 0.00 0.0 M 2.5 M
1/7/2011 7:00 AM 0.00 0.0 M 0.5 M front (SW) yard essentially bare, back 1" snow after yesterday's 50+F max
1/8/2011 7:00 AM 0.00 0.0 M T M
1/9/2011 7:00 AM T 0.1 M T M first flakes around 0430
1/10/2011 7:00 AM 0.30 5.3 M 6.0 M accum ended by noon 1.9/.13 1500, then picked up again ca 17L; 1.8/.06 22L; no accum after ca 0300 1.6/.11 0530 S-- until ca 0630, with rapid clearing
1/11/2011 7:00 AM 0.00 0.0 M 4.5 M
1/12/2011 7:00 AM 0.00 0.0 M 4.5 M
1/13/2011 7:00 AM 0.00 0.0 M 4.5 M
1/14/2011 7:00 AM 0.00 0.0 M 2.0 M
1/15/2011 7:00 AM 0.00 0.0 M 0.5 M
1/16/2011 7:00 AM 0.00 0.0 M T M
1/17/2011 7:00 AM T 0.0 M T T RW-- ca 0700 - just scattered drops; snow covers about 20% of ground
1/18/2011 7:00 AM T 0.0 M T M end of very light RW
1/19/2011 7:00 AM 0.00 0.0 M T M
1/20/2011 7:00 AM 0.10 2.4 M 2.5 M A fast mover! Went from clear to snowing in less than an hour. Snow accum done by 1900 with moon visible, but still a stray flake in the air until 2000-ish.
1/21/2011 7:00 AM 0.00 0.0 M 1.5 M
1/22/2011 7:00 AM 0.00 0.0 M T M windy a.m. and over night - down to ~2/3 snow cover
1/23/2011 7:00 AM 0.00 0.0 M T M
1/24/2011 7:00 AM 0.00 0.0 M T T roughly 25% of ground with thin snow cover
1/25/2011 7:00 AM 0.00 0.0 M T M
1/26/2011 7:00 AM T T M T M SW-- late evening; dry by midnight
1/27/2011 7:00 AM 0.00 0.0 M T M
1/28/2011 7:00 AM 0.00 0.0 M T M
1/29/2011 7:00 AM 0.00 0.0 M T M even after a mid-60s high yesterday, still a small patch of ice left in a corner of the yard
1/30/2011 7:00 AM 0.00 0.0 M T M
1/31/2011 7:00 AM T T M T M ZL- began after 0300, before 0430, S- began ca 0615. Slick spots in shaded areas ca 0530; surfaces covered with a dusting of snow by 0700.
2/1/2011 7:00 AM 0.08 1.3 M 1.0 M S- all day, 1.0/.06 by 1800, essentially stopped, then S-- again eve +0.3/.02. Stars visible 0430.
2/2/2011 7:00 AM T 0.1 M 1.0 M
2/3/2011 7:00 AM 0.00 0.0 M 1.0 M
2/4/2011 7:00 AM 0.03 0.9 M T M S-- 1130, SW- 1330-1430. Interesting situation. Snow accum on driveway, but had mostly melted off snow board, & had melted/refrozen in gauge. Some may have evaporated. Wish I'd noticed before clearing driveway - could have taken a core!
2/5/2011 7:00 AM T 0.0 M T M RW- aftn
2/6/2011 7:00 AM 0.32 4.7 M 4.5 M SP- 1230-1400; S- 1400-1600 0.8"; SPW- ca 2000 0.2"/.05"; S- 2330- 3.7"/.27" by 0700
2/7/2011 7:00 AM 0.02 0.4 M 5.0 M SW+ ended ca 0730, then S- for a short period after
2/8/2011 5:15 AM 0.18 2.8 M 6.0 M FROPA & S/BS 2105. Winds tapered off & visibility improved by 2145 or so, with S- continuing over night. A fair amount of drifting; new snow amount a best guess.
2/9/2011 7:00 AM 0.07 0.9 M 5.5 M S-- most of day; significant clearing by 1600
2/10/2011 7:00 AM 0.00 0.0 M 5.0 M
2/11/2011 7:00 AM 0.00 0.0 M 5.0 M
2/12/2011 7:00 AM 0.00 0.0 M 4.0 M the beginning of the big thaw
2/13/2011 7:00 AM 0.00 0.0 M 2.5 M lost 1.5" snow yesterday, without much sun
2/14/2011 7:00 AM 0.00 0.0 M T M somewhat less than half of yard still covered with snow
2/15/2011 7:00 AM 0.00 0.0 M T M
2/16/2011 7:00 AM 0.00 0.0 M T M
2/17/2011 7:00 AM 0.00 0.0 M T M just the barest hints of snow left in our yard
2/18/2011 7:00 AM 0.00 0.0 M T M
2/19/2011 7:00 AM 0.00 0.0 M T M
2/20/2011 7:00 AM T 0.0 M T M RWU ca 19L
2/21/2011 7:00 AM 0.00 0.0 M T 0.00
2/22/2011 7:00 AM 0.00 0.0 M T M
2/23/2011 7:00 AM 0.00 0.0 M T M
2/24/2011 7:00 AM 0.00 0.0 M T M
2/25/2011 5:30 AM T T M T M SW-- 2000-2200 a breeze-blown dusting; S-- 0400ff lightly covered surfaces by 0530, but not yet measurable
2/26/2011 7:00 AM T 0.1 M T M SW-- mostly a.m.
2/27/2011 7:00 AM 0.00 0.0 M T M
2/28/2011 7:00 AM 0.00 0.0 M T M
3/1/2011 7:00 AM 0.00 0.0 M T M
3/2/2011 7:00 AM 0.00 0.0 M 0.0 M
3/3/2011 7:00 AM 0.00 0.0 M 0.0 M
3/4/2011 7:00 AM T 0.0 M 0.0 M RWU ca 2200 - some dampness on deck at 0430
3/5/2011 7:00 AM 0.00 0.0 M 0.0 M
3/6/2011 7:00 AM 0.00 0.0 M 0.0 M
3/7/2011 5:30 AM 0.01 0.0 M T M dry as late as 0130; ZL- at 0400
3/8/2011 7:00 AM T T M T M ZL- early, then SGW--/SW--
3/9/2011 7:00 AM T T M 0.0 M a few flakes a.m.; cleared by late afternoon
3/10/2011 7:00 AM 0.00 0.0 M 0.0 M
3/11/2011 7:00 AM 0.00 0.0 M 0.0 M
3/12/2011 7:00 AM 0.00 0.0 M 0.0 M
3/13/2011 7:00 AM 0.07 0.0 M 0.0 M R- observed at 0415; according to radar, 0355-0530. Min temp over night 34F; no snow.
3/14/2011 7:00 AM 0.00 0.0 M 0.0 M
3/15/2011 7:00 AM 0.00 0.0 M 0.0 M
3/16/2011 7:00 AM 0.00 0.0 M 0.0 M
3/17/2011 7:00 AM 0.00 0.0 M 0.0 M
3/18/2011 7:00 AM 0.03 T M 0.0 M A few flakes began at 2100, wet surfaces but temp was about 38F so no whitening. Looks like it stopped around 0300.
3/19/2011 7:00 AM 0.00 0.0 M 0.0 M
3/20/2011 7:00 AM 0.00 0.0 M 0.0 M
3/21/2011 7:00 AM 0.00 0.0 M 0.0 M
3/22/2011 7:00 AM 0.00 0.0 M 0.0 M
3/23/2011 7:00 AM 0.00 0.0 M 0.0 M
3/24/2011 7:00 AM 0.00 0.0 M 0.0 M
3/25/2011 7:00 AM 0.00 0.0 M 0.0 M
3/26/2011 7:00 AM 0.00 0.0 M 0.0 M
3/27/2011 7:00 AM 0.00 0.0 M 0.0 M
3/28/2011 7:00 AM 0.01 T M T M S-- up until about 0530 - barest dusting. Snow whitened roofs by about 0630 and ended ca 0700.
3/29/2011 7:00 AM 0.10 0.8 M 0.5 M S- 0100-0245, cleared by 0400. First measurable snow of the month.
3/30/2011 7:00 AM 0.00 0.0 M T M still a bit of snow in some shaded areas
3/31/2011 7:00 AM 0.00 0.0 M 0.0 M
4/1/2011 7:00 AM 0.00 0.0 M 0.0 M
4/2/2011 7:00 AM 0.00 0.0 M 0.0 M
4/3/2011 7:00 AM 0.00 0.0 M 0.0 M 84F max & still 66 at 0100.
4/4/2011 7:00 AM 0.21 0.8 M T M R-B ca 0930 .14", S- ca 1200. 0.5" accum 1330, then rather quickly melted w/a couple of minor accums during SW- late aftn, mid-eve. Clear by 0130.
4/5/2011 7:00 AM 0.00 0.0 M 0.0 M
4/6/2011 7:00 AM 0.00 0.0 M 0.0 M
4/7/2011 7:00 AM 0.02 0.0 M 0.0 M L- ca 0830 T; RW- 1600-2000 .02"
4/8/2011 7:00 AM 0.00 0.0 M 0.0 M
4/9/2011 7:00 AM 0.00 0.0 M 0.0 M
4/10/2011 7:00 AM 0.24 0.8 M 0.5 M TRW- B ca 0220, SP-/TSP-/A 1/8" 0235-0315, whitened ground in about 5 min. Precip ended ca 0430 based on radar. First lightning & thunder of season.
4/11/2011 7:00 AM 0.00 0.0 M 0.0 M
4/12/2011 7:00 AM 0.00 0.0 M 0.0 M
4/13/2011 7:00 AM 0.00 0.0 M 0.0 M
4/14/2011 5:30 AM 0.75 0.7 M 0.5 M R- B ca1920 .19" 2200, +.34" 0040, +.06" SB ca 0400. 0.7"/.16" 0530. (Updated depth 1.5" 0745. This 0.8" snow and yet-to-be-measured water content in tomorrow's report.)
4/15/2011 7:00 AM 0.09 0.8 M 0.0 M Most of this precip actually fell between 0530 and the standard 0700 obs time yesterday. As noted then, max accum 1.5" ca 0730. Skies cleared aftn and snow is long gone this morning.
4/16/2011 7:00 AM 0.00 0.0 M 0.0 M
4/17/2011 7:00 AM 0.00 0.0 M 0.0 M
4/18/2011 7:00 AM 0.00 0.0 M 0.0 M
4/19/2011 7:00 AM 0.20 0.0 M 0.0 M R- late eve
4/20/2011 7:00 AM 0.01 0.0 M 0.0 M thunder/ltg 1200-1215ish, w/a couple RW-
4/21/2011 5:30 AM 0.01 0.0 M 0.0 M RW- 1815-2030. R- ca 0600 will be on tomorrow's report
4/22/2011 7:00 AM 0.13 0.0 M 0.0 M R- 0600-0730 yesterday .12" (most would have been recorded for 21 Apr had I been home to measure at 0700); brief RW- w/strong winds 2040-2045 .01"
4/23/2011 7:00 AM T T M 0.0 M SWU 0430-0515
4/24/2011 7:00 AM T T M 0.0 M SW- until noon, no accum
4/25/2011 7:00 AM 0.34 0.0 M 0.0 M R- 1750-ca0000 (end time from radar)
4/26/2011 7:00 AM T 0.0 M 0.0 M a couple of light showers late aftn/eve
4/27/2011 7:00 AM 0.02 0.0 M 0.0 M a brief RW-- ca 14L, then RW- ca 1930
4/28/2011 7:00 AM 0.00 0.0 M 0.0 M
4/29/2011 7:00 AM 0.00 0.0 M 0.0 M
4/30/2011 7:00 AM 0.02 T M 0.0 M RW- early eve, w/some sleet mixed in
5/1/2011 7:00 AM 0.00 0.0 M 0.0 M
5/2/2011 7:00 AM T 0.0 M 0.0 M deck damp & a few drops falling at 0230
5/3/2011 7:00 AM 0.00 0.0 M 0.0 M lots of rain/snow showers in area, but none hit us
5/4/2011 7:00 AM 0.00 0.0 M 0.0 M
5/5/2011 7:00 AM 0.00 0.0 M 0.0 M
5/6/2011 7:00 AM 0.00 0.0 M 0.0 M
5/7/2011 7:00 AM 0.00 0.0 M 0.0 M
5/8/2011 7:00 AM 0.00 0.0 M 0.0 M
5/9/2011 7:00 AM 0.00 0.0 M 0.0 M
5/10/2011 7:00 AM 0.00 0.0 M 0.0 M
5/11/2011 8:15 AM 0.67 0.0 M 0.0 M
5/12/2011 9:30 AM 1.07 0.0 M 0.0 M
5/13/2011 7:00 AM 0.09 0.0 M 0.0 M Note that yesterday's measurement was at 0930; RE ca 1500, but remained ovc. Moon vsbl through clouds 2100.
5/14/2011 7:00 AM 0.00 0.0 M 0.0 M
5/15/2011 7:00 AM 0.19 0.0 M 0.0 M R-- ca 1230 (T), R- 1600ff .15" as of 2230
5/16/2011 7:00 AM 0.02 0.0 M 0.0 M RW- a.m.; ovc all day
5/17/2011 7:00 AM 0.00 0.0 M 0.0 M
5/18/2011 7:00 AM 0.01 0.0 M 0.0 M RWU early aftn
5/19/2011 7:00 AM 1.75 0.0 M 0.0 M R-/R ca 1300ff 1.25" 2030, +.46" 0100, +.04" 0530, T thereafter
5/20/2011 7:00 AM 0.51 0.0 M 0.0 M heaviest rain mid to late aftn
5/21/2011 7:00 AM 0.07 0.0 M 0.0 M TRWU ca 1600
5/22/2011 7:00 AM 0.00 0.0 M 0.0 M
5/23/2011 7:00 AM 0.00 0.0 M 0.0 M
5/24/2011 7:00 AM 0.08 0.0 M 0.0 M TRW- ca 1630 .01; R-/TRW- 1930-ca2245 .07" ltg W 2100
5/25/2011 7:00 AM 0.04 0.0 M 0.0 M RW- mid am & early aftn
5/26/2011 7:00 AM 0.00 0.0 M 0.0 M
5/27/2011 7:00 AM 0.00 0.0 M 0.0 M
5/28/2011 7:00 AM 0.00 0.0 M 0.0 M
5/29/2011 7:00 AM 0.01 0.0 M 0.0 M RW- 2000 (T) & 2230 (.01")
5/30/2011 7:00 AM 0.00 0.0 M 0.0 M
5/31/2011 7:00 AM 0.00 0.0 M 0.0 M quite windy early aftn - eve; many twigs & leaves down
6/1/2011 7:00 AM 0.00 0.0 M 0.0 M
6/2/2011 7:00 AM 0.00 0.0 M 0.0 M
6/3/2011 7:00 AM 0.00 0.0 M 0.0 M
6/4/2011 7:00 AM 0.00 0.0 M 0.0 M
6/5/2011 7:00 AM 0.00 0.0 M 0.0 M
6/6/2011 7:00 AM 0.00 0.0 M 0.0 M
6/7/2011 7:00 AM 0.00 0.0 M 0.0 M
6/8/2011 7:00 AM 0.00 0.0 M 0.0 M
6/9/2011 5:30 AM 0.11 0.0 M 0.0 M RW-- 2030, 2230; R- ca 0230-0330, then R-/L-
6/10/2011 7:00 AM 0.03 0.0 M 0.0 M (recall accum since 0530 9th) L-E ca10L, then ovc except for a few min of sun aftn
6/11/2011 7:00 AM 0.00 0.0 M 0.0 M
6/12/2011 7:00 AM 0.00 0.0 M 0.0 M
6/13/2011 7:00 AM 0.00 0.0 M 0.0 M
6/14/2011 7:00 AM 0.00 0.0 M 0.0 M
6/15/2011 7:00 AM 0.00 0.0 M 0.0 M
6/16/2011 7:00 AM 0.00 0.0 M 0.0 M
6/17/2011 7:00 AM 0.01 0.0 M 0.0 M thunder S & gusty winds roughly 2000-2030; RW- 0505-0515
6/18/2011 7:00 AM T 0.0 M 0.0 M RW-- early aftn, thunder mid-aftn
6/19/2011 7:00 AM 0.00 0.0 M 0.0 M
6/20/2011 7:00 AM 0.74 0.0 M 0.0 M a couple of very light showers evening w/thunder in area; RW- ca 2215; R- ca 0200-0600
6/21/2011 7:00 AM T 0.0 M 0.0 M RW-- ca 0900
6/22/2011 7:00 AM 0.00 0.0 M 0.0 M
6/23/2011 7:00 AM 0.00 0.0 M 0.0 M
6/24/2011 7:00 AM T 0.0 M 0.0 M a few drops w/thunder 1445; RW-- 1920ff, brief TRW- 1950
6/25/2011 7:00 AM T 0.0 M 0.0 M a few drops from a mostly clear sky at 1745
6/26/2011 7:00 AM 0.00 0.0 M 0.0 M
6/27/2011 7:00 AM 0.00 0.0 M 0.0 M
6/28/2011 7:00 AM 0.00 0.0 M 0.0 M
6/29/2011 7:00 AM 0.00 0.0 M 0.0 M
6/30/2011 7:00 AM T 0.0 M 0.0 M TRW-- ca 1615
7/1/2011 7:00 AM 0.13 0.0 M 0.0 M three very light showers late am/early pm; TRW 0345-0355 .06"; TRW- mid-eve .07"
7/2/2011 7:00 AM 0.09 0.0 M 0.0 M TRW-- 1940 (just a few drops); TRW- 2147-2155 w/hail mostly 1/4", some 3/8" a few 5/8" stones .09"
7/3/2011 7:00 AM 0.00 0.0 M 0.0 M
7/4/2011 7:00 AM 0.00 0.0 M 0.0 M
7/5/2011 7:00 AM 0.00 0.0 M 0.0 M
7/6/2011 7:00 AM 0.03 0.0 M 0.0 M R- 1830-1930, 2030-2130
7/7/2011 7:00 AM 0.03 0.0 M 0.0 M TRW- 1640-1650
7/8/2011 7:00 AM 0.45 0.0 M 0.0 M TRW- late aftn (.04"), two in evening (.41" between them), and ca 0600 (T)
7/9/2011 7:00 AM 0.03 0.0 M 0.0 M RW- 0600 (T); TRW- ca 1330 (.01"); TRW- 1830-1845 (.02") saw rainbows both at sunrise and with evening shower
7/10/2011 7:00 AM 0.46 0.0 M 0.0 M short/light showers at 1409 & 1543, then TRW/+ 1725-1830
7/11/2011 7:00 AM 0.22 0.0 M 0.0 M TRW+ hit like a brick at 1420 with strong wind and a blast of rain, but passed in about 5 min .05"; TRW- 1720-1810 .06"; TRW- 1910-2015 .09"; RWU 0220-0300 (based on radar) .02"
7/12/2011 7:00 AM 0.20 0.0 M 0.0 M TRW- 1715-1945. Lots of lightning the first half hour.
7/13/2011 7:00 AM 0.21 0.0 M 0.0 M a few spits ca 1615 & 1810, TRW- late eve with lots of lightning to east, ended ca 0300
7/14/2011 7:00 AM 0.50 0.0 M 0.0 M a couple of drops at 2045, then TRW ca 2140 w/most accum 2150-2210 (.46" as of 2215).
7/15/2011 7:00 AM 0.01 0.0 M 0.0 M RWU mid-aftn
7/16/2011 7:00 AM T 0.0 M 0.0 M RW-- w/distant thunder 2015-2030
7/17/2011 7:00 AM 0.09 0.0 M 0.0 M TRW- 1825-1840 .03"; TRW- w/several close ltg strikes 2020-2040 .06"
7/18/2011 7:00 AM 0.00 0.0 M 0.0 M
7/19/2011 7:00 AM 0.00 0.0 M 0.0 M
7/20/2011 7:00 AM 0.04 0.0 M 0.0 M TRW- roughly 1700-1830. Lots of lightning in first 45 min or so.
7/21/2011 7:00 AM T 0.0 M 0.0 M TRW-- ca 1800, 1930, 2115; ltg show 2330 sans rain
7/22/2011 7:00 AM 0.00 0.0 M 0.0 M
7/23/2011 7:00 AM 0.00 0.0 M 0.0 M
7/24/2011 7:00 AM 0.00 0.0 M 0.0 M
7/25/2011 7:00 AM 0.00 0.0 M 0.0 M
7/26/2011 7:00 AM 0.00 0.0 M 0.0 M
7/27/2011 7:00 AM 0.15 0.0 M 0.0 M TRW-/RW- 1830-2100
7/28/2011 7:00 AM 0.08 0.0 M 0.0 M TRW- 1900-1945
7/29/2011 7:00 AM T 0.0 M 0.0 M RW-- 1945-1950, then a couple of drops 2020
7/30/2011 7:00 AM T 0.0 M 0.0 M
7/31/2011 7:00 AM 0.00 0.0 M 0.0 M 'twas hard to spot a cloud yesterday
8/1/2011 7:00 AM T 0.0 M 0.0 M became cldy late aftn, thunder/ltg W-N, then RW-- 2030-2035
8/2/2011 7:00 AM 0.00 0.0 M 0.0 M
8/3/2011 7:00 AM 0.05 0.0 M 0.0 M TRW- ca 1330 .03"; RW- 2230-0000ish .02"
8/4/2011 7:00 AM T 0.0 M 0.0 M very light shower 1630-1645
8/5/2011 7:00 AM T 0.0 M 0.0 M a few drops ca 1730
8/6/2011 7:00 AM 0.00 0.0 M 0.0 M
8/7/2011 7:00 AM 0.00 0.0 M 0.0 M
8/8/2011 7:00 AM 0.00 0.0 M 0.0 M
8/9/2011 7:00 AM 0.00 0.0 M 0.0 M
8/10/2011 7:00 AM 0.00 0.0 M 0.0 M
8/11/2011 7:00 AM T 0.0 M 0.0 M brief RW- late aftn
8/12/2011 7:00 AM 0.00 0.0 M 0.0 M
8/13/2011 7:00 AM 0.00 0.0 M 0.0 M
8/14/2011 7:00 AM 0.00 0.0 M 0.0 M
8/15/2011 7:00 AM 0.07 0.0 M 0.0 M TRW- 1600-1615 (.02"), TRW- 2000-2100
8/16/2011 7:00 AM 0.00 0.0 M 0.0 M
8/17/2011 7:00 AM 0.12 0.0 M 0.0 M a couple of TRW- aftn, at around 1345-1400 with some 1/8"-1/4" hail, then again ca 1640-1700
8/18/2011 7:00 AM 0.00 0.0 M 0.0 M
8/19/2011 7:00 AM 0.00 0.0 M 0.0 M
8/20/2011 7:00 AM 0.10 0.0 M 0.0 M TRW- 1715-1745 (T); other RW- (T); TRW- 2015-2145 .10"
8/21/2011 7:00 AM 0.00 0.0 M 0.0 M
8/22/2011 7:00 AM 0.00 0.0 M 0.0 M
8/23/2011 7:00 AM T 0.0 M 0.0 M TRW-- 1920-2000
8/24/2011 7:00 AM 0.00 0.0 M 0.0 M
8/25/2011 7:00 AM 0.00 0.0 M 0.0 M
8/26/2011 7:00 AM T 0.0 M 0.0 M TRW-- 1900ff
8/27/2011 7:00 AM T 0.0 M 0.0 M RW-- 1930, 2100
8/28/2011 7:00 AM 0.00 0.0 M 0.0 M
8/29/2011 7:00 AM 0.03 0.0 M 0.0 M RWU ca 1730 (.02"), late eve (.01")
8/30/2011 7:00 AM 0.00 0.0 M 0.0 M
8/31/2011 7:00 AM T 0.0 M 0.0 M a few drops w/gusty winds 2040; wind continued until about 2130
9/1/2011 7:00 AM 0.00 0.0 M 0.0 M thunder ca 1600, gusty winds 1830-1930
9/2/2011 7:00 AM T 0.0 M 0.0 M a very few drops 1930-2030
9/3/2011 7:00 AM T 0.0 M 0.0 M a few drops in TRW-- ca 1630
9/4/2011 7:00 AM 0.00 0.0 M 0.0 M Welcome, September! 68F max (coolest since 9 Jun), 44F min this morning (coolest since 26 May)
9/5/2011 7:00 AM 0.00 0.0 M 0.0 M
9/6/2011 7:00 AM 0.00 0.0 M 0.0 M maybe a drop or two ca 0630, but was not home to witness, if so
9/7/2011 7:00 AM 0.03 0.0 M 0.0 M ovc all day; RW- aftn/eve .01", over night +.02"
9/8/2011 7:00 AM 0.40 0.0 M 0.0 M heaviest rain late morning to early aftn - .15" as of 1130
9/9/2011 7:00 AM 0.00 0.0 M 0.0 M
9/10/2011 7:00 AM 0.00 0.0 M 0.0 M
9/11/2011 7:00 AM 0.00 0.0 M 0.0 M
9/12/2011 7:00 AM 0.00 0.0 M 0.0 M
9/13/2011 7:00 AM 0.10 0.0 M 0.0 M R- 2300-2310, RW- until about 0030
9/14/2011 7:00 AM 0.08 0.0 M 0.0 M RW- ca 2030; thunder W 2118; R- 2145-2230
9/15/2011 7:00 AM 0.81 0.0 M 0.0 M L- late morning, R- ca 1600-0200 (no accum after 0145). Most accum 1900 - 2330.
9/16/2011 7:00 AM 0.01 0.0 M 0.0 M ovc, w/partial clrg late aftn; RW- 1815; mostly clear 2200
9/17/2011 7:00 AM 0.00 0.0 M 0.0 M 1/8 F 0500-0800 or so
9/18/2011 7:00 AM T 0.0 M 0.0 M RW- 1400-1405
9/19/2011 7:00 AM 0.00 0.0 M 0.0 M
9/20/2011 7:00 AM 0.00 0.0 M 0.0 M
9/21/2011 7:00 AM 0.00 0.0 M 0.0 M
9/22/2011 7:00 AM 0.03 0.0 M 0.0 M RW-- 1730, RW-/TRW- until ca 2000
9/23/2011 7:00 AM 0.00 0.0 M 0.0 M
9/24/2011 7:00 AM 0.00 0.0 M 0.0 M
9/25/2011 7:00 AM 0.00 0.0 M 0.0 M
9/26/2011 7:00 AM 0.00 0.0 M 0.0 M
9/27/2011 7:00 AM 0.00 0.0 M 0.0 M
9/28/2011 7:00 AM 0.00 0.0 M 0.0 M
9/29/2011 7:00 AM 0.00 0.0 M 0.0 M
9/30/2011 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
7/1/2011 9:48 PM just a few 5/8" stones toward the end of the shower, mostly 1/4" with several 3/8" 5/8" 1/4" Pea Size 1/4" Pea Size Hard|White Ice 7 1min no damage Intermittent True After rain After smaller hail vertical
8/16/2011 1:50 PM 1/4" Pea Size 1/4" Pea Size Rice Hard|White Ice 5 3min no damage Continuous True After rain After smaller hail vertical