Station Overview Station Location
Station Number CO-BO-92 Latitude 39.9588
Station Name Nederland .47 ESE Longitude -105.5026
County Boulder Elevation (ft) 8337



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 17 1.23 1.69 19 1.69 15 0.00 4 1 6 0 14.6 4 6
Nov 17 1.12 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 17 1.00 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 18 0.82 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 18 0.97 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 18 1.99 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 18 2.68 1.04 14 1.04 14 0.00 0 0 5 1 12.9 5 5
May 18 2.76 3.60 31 2.97 26 0.63 5 1 10 3 11.0 3 2
June 18 2.23 0.00 30 0.00 4 0.00 26 0 0 1 0.0 0 0
July 18 2.37 0.00 31 0.00 0 0.00 31 0 0 0 0.0 0 0
Aug 18 2.59 3.23 31 0.51 27 2.72 4 2 7 4 0.0 0 0
Sept 18 1.68 0.69 29 0.50 25 0.19 4 1 7 1 0.0 0 0
Water Year Totals: 21.44" 10.25" 185 days 6.71" 111 3.54" 74 days 5 35 days 10 days 38.5" 12 days 13 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
10/1/2017 0.29
10/2/2017 0.59
10/3/2017 0.21
10/4/2017 0.00
10/5/2017 0.00
10/6/2017 0.00
10/7/2017 0.03
10/8/2017 0.00
10/9/2017 0.30
10/10/2017 0.27
10/11/2017 0.00
10/12/2017 **
10/13/2017 **
10/14/2017 **
10/15/2017 0.00
10/16/2017 0.00
10/17/2017 0.00
10/18/2017 0.00
10/19/2017 0.00
10/20/2017
10/21/2017
10/22/2017
10/23/2017
10/24/2017
10/25/2017
10/26/2017
10/27/2017
10/28/2017
10/29/2017
10/30/2017
10/31/2017
11/1/2017
11/2/2017
11/3/2017
11/4/2017
11/5/2017
11/6/2017
11/7/2017
11/8/2017
11/9/2017
11/10/2017
11/11/2017
11/12/2017
11/13/2017
11/14/2017
11/15/2017
11/16/2017
11/17/2017
11/18/2017
11/19/2017
11/20/2017
11/21/2017
11/22/2017
11/23/2017
11/24/2017
11/25/2017
11/26/2017
11/27/2017
11/28/2017
11/29/2017
11/30/2017
12/1/2017
12/2/2017
12/3/2017
12/4/2017
12/5/2017
12/6/2017
12/7/2017
12/8/2017
12/9/2017
12/10/2017
12/11/2017
12/12/2017
12/13/2017
12/14/2017
12/15/2017
12/16/2017
12/17/2017
12/18/2017
12/19/2017
12/20/2017
12/21/2017
12/22/2017
12/23/2017
12/24/2017
12/25/2017
12/26/2017
12/27/2017
12/28/2017
12/29/2017
12/30/2017
12/31/2017
Day of YearDaily PrcpMultiday Prcp
1/1/2018
1/2/2018
1/3/2018
1/4/2018
1/5/2018
1/6/2018
1/7/2018
1/8/2018
1/9/2018
1/10/2018
1/11/2018
1/12/2018
1/13/2018
1/14/2018
1/15/2018
1/16/2018
1/17/2018
1/18/2018
1/19/2018
1/20/2018
1/21/2018
1/22/2018
1/23/2018
1/24/2018
1/25/2018
1/26/2018
1/27/2018
1/28/2018
1/29/2018
1/30/2018
1/31/2018
2/1/2018
2/2/2018
2/3/2018
2/4/2018
2/5/2018
2/6/2018
2/7/2018
2/8/2018
2/9/2018
2/10/2018
2/11/2018
2/12/2018
2/13/2018
2/14/2018
2/15/2018
2/16/2018
2/17/2018
2/18/2018
2/19/2018
2/20/2018
2/21/2018
2/22/2018
2/23/2018
2/24/2018
2/25/2018
2/26/2018
2/27/2018
2/28/2018
3/1/2018
3/2/2018
3/3/2018
3/4/2018
3/5/2018
3/6/2018
3/7/2018
3/8/2018
3/9/2018
3/10/2018
3/11/2018
3/12/2018
3/13/2018
3/14/2018
3/15/2018
3/16/2018
3/17/2018
3/18/2018
3/19/2018
3/20/2018
3/21/2018
3/22/2018
3/23/2018
3/24/2018
3/25/2018
3/26/2018
3/27/2018
3/28/2018
3/29/2018
3/30/2018
3/31/2018
Day of YearDaily PrcpMultiday Prcp
4/1/2018
4/2/2018
4/3/2018
4/4/2018
4/5/2018
4/6/2018
4/7/2018
4/8/2018
4/9/2018
4/10/2018
4/11/2018
4/12/2018
4/13/2018
4/14/2018
4/15/2018
4/16/2018
4/17/2018 0.00
4/18/2018 0.01
4/19/2018 0.00
4/20/2018 0.00
4/21/2018 0.33
4/22/2018 0.07
4/23/2018 0.00
4/24/2018 0.16
4/25/2018 0.47
4/26/2018 0.00
4/27/2018 0.00
4/28/2018 0.00
4/29/2018 T
4/30/2018 0.00
5/1/2018 T
5/2/2018 0.14
5/3/2018 0.98
5/4/2018 0.58
5/5/2018 0.00
5/6/2018 0.00
5/7/2018 0.00
5/8/2018 0.00
5/9/2018 0.00
5/10/2018 0.00
5/11/2018 0.00
5/12/2018 0.04
5/13/2018 0.05
5/14/2018 0.51
5/15/2018 0.09
5/16/2018 **
5/17/2018 **
5/18/2018 **
5/19/2018 **
5/20/2018 0.63
5/21/2018 0.38
5/22/2018 0.00
5/23/2018 0.14
5/24/2018 T
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.00
5/28/2018 0.00
5/29/2018 0.06
5/30/2018 T
5/31/2018 0.00
6/1/2018 0.00
6/2/2018 0.00
6/3/2018 0.00
6/4/2018 T
6/5/2018 **
6/6/2018 **
6/7/2018 **
6/8/2018 **
6/9/2018 **
6/10/2018 **
6/11/2018 **
6/12/2018 **
6/13/2018 **
6/14/2018 **
6/15/2018 **
6/16/2018 **
6/17/2018 **
6/18/2018 **
6/19/2018 **
6/20/2018 **
6/21/2018 **
6/22/2018 **
6/23/2018 **
6/24/2018 **
6/25/2018 **
6/26/2018 **
6/27/2018 **
6/28/2018 **
6/29/2018 **
6/30/2018 **
Day of YearDaily PrcpMultiday Prcp
7/1/2018 **
7/2/2018 **
7/3/2018 **
7/4/2018 **
7/5/2018 **
7/6/2018 **
7/7/2018 **
7/8/2018 **
7/9/2018 **
7/10/2018 **
7/11/2018 **
7/12/2018 **
7/13/2018 **
7/14/2018 **
7/15/2018 **
7/16/2018 **
7/17/2018 **
7/18/2018 **
7/19/2018 **
7/20/2018 **
7/21/2018 **
7/22/2018 **
7/23/2018 **
7/24/2018 **
7/25/2018 **
7/26/2018 **
7/27/2018 **
7/28/2018 **
7/29/2018 **
7/30/2018 **
7/31/2018 **
8/1/2018 2.67
8/2/2018 0.00
8/3/2018 T
8/4/2018 0.10
8/5/2018 **
8/6/2018 **
8/7/2018 0.05
8/8/2018 0.00
8/9/2018 T
8/10/2018 0.00
8/11/2018 0.00
8/12/2018 0.00
8/13/2018 0.00
8/14/2018 0.00
8/15/2018 0.02
8/16/2018 0.00
8/17/2018 T
8/18/2018 0.00
8/19/2018 0.06
8/20/2018 0.00
8/21/2018 0.01
8/22/2018 0.10
8/23/2018 0.00
8/24/2018 0.00
8/25/2018 0.02
8/26/2018 T
8/27/2018 0.20
8/28/2018 0.00
8/29/2018 0.00
8/30/2018 0.00
8/31/2018 0.00
9/1/2018 0.00
9/2/2018 0.08
9/3/2018 0.00
9/4/2018 T
9/5/2018 0.02
9/6/2018 0.23
9/7/2018 0.08
9/8/2018 0.01
9/9/2018 0.00
9/10/2018 0.00
9/11/2018 0.00
9/12/2018 0.01
9/13/2018 0.00
9/14/2018 0.00
9/15/2018 0.00
9/16/2018 0.00
9/17/2018
9/18/2018 0.00
9/19/2018 **
9/20/2018 **
9/21/2018 **
9/22/2018 0.19
9/23/2018 0.00
9/24/2018 0.00
9/25/2018 0.07
9/26/2018 0.00
9/27/2018 0.00
9/28/2018 0.00
9/29/2018 0.00
9/30/2018 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2017 7:00 AM 0.29 M M M M rain shower aftn, then more rain after midninght
10/2/2017 7:00 AM 0.59 3.8 0.27 3.0 M Rain 3:30-9:30pm; snow overnight and still snowing at ob tome
10/3/2017 7:00 AM 0.21 2.5 0.20 3.0 M
10/4/2017 7:00 AM 0.00 0.0 M 0.5 M
10/5/2017 7:00 AM 0.00 0.0 M 0.0 M
10/6/2017 7:00 AM 0.00 0.0 M M M
10/7/2017 7:00 AM 0.03 T T 0.0 M Rain and snow pellets 3pm. Snow flurry 6pm. Winds W 44mph
10/8/2017 7:00 AM 0.00 0.0 M M M
10/9/2017 7:00 AM 0.30 3.4 0.21 3.0 M Rain amd smpw pellets began 8:00 pm changed to all snow by 11pm
10/10/2017 7:00 AM 0.27 4.9 0.27 5.0 M Storm total 8-9 Oct: snow, 8.3 inches; liquid 0.57 in
10/11/2017 7:00 AM 0.00 0.0 M 1.0 M
10/16/2017 7:00 AM 0.00 0.0 M M M
10/17/2017 7:00 AM 0.00 0.0 M 0.0 M
10/18/2017 7:00 AM 0.00 0.0 M M M
10/19/2017 7:00 AM 0.00 0.0 M M M
4/17/2018 7:00 AM 0.00 0.0 M M M
4/18/2018 7:00 AM 0.01 0.2 T T M Very light snow. Peak winds W 50 mph
4/19/2018 7:00 AM 0.00 0.0 M T M
4/20/2018 7:00 AM 0.00 0.0 M T M
4/21/2018 7:00 AM 0.33 3.1 0.31 3.0 M
4/22/2018 7:00 AM 0.07 0.2 M 3.0 M Very light snow late morning to afternoon; melting quickly.
4/23/2018 7:00 AM 0.00 0.0 M T M
4/24/2018 7:00 AM 0.16 1.1 0.13 1.0 M Light rainshower 1pm; snow late evening; still sowing at ob time
4/25/2018 7:00 AM 0.47 8.3 0.46 9.0 M Verylight snow after midnight
4/26/2018 7:00 AM 0.00 0.0 M 1.5 M
4/27/2018 7:00 AM 0.00 0.0 M T M
4/28/2018 7:00 AM 0.00 0.0 M T M
4/29/2018 7:00 AM T 0.0 M 0.0 M Few raindrops aftn
4/30/2018 7:00 AM 0.00 0.0 M M M
5/1/2018 7:00 AM T T M T M Snow pellet shower
5/2/2018 7:00 AM 0.14 T M T M Light snow at ob time; snow pellet shower 7-8am, intermittent rain showers thru day and overnight
5/3/2018 7:00 AM 0.98 7.5 0.65 7.0 M Snow up to 11am 2 inches, melted by afternoon. Few rain showers thru day. Heavier snow 11pm-7am.
5/4/2018 7:00 AM 0.58 3.0 0.30 4.0 M 3" snow 7-11am. partial melting. intermittant snow showers thru 8pm
5/5/2018 7:00 AM 0.00 0.0 M T M
5/6/2018 7:00 AM 0.00 0.0 M T M
5/7/2018 7:00 AM 0.00 0.0 M 0.0 M
5/8/2018 7:00 AM 0.00 0.0 M 0.0 M
5/9/2018 7:00 AM 0.00 0.0 M 0.0 M
5/10/2018 7:00 AM 0.00 0.0 M 0.0 M
5/11/2018 7:00 AM 0.00 0.0 M 0.0 M
5/12/2018 7:00 AM 0.04 0.0 M 0.0 M Drizzle mostly. Report delayed owing to internet outage
5/13/2018 7:00 AM 0.05 0.0 M 0.0 M Drizzle
5/14/2018 7:00 AM 0.51 0.0 M 0.0 M Tunderstorms afternoon; very light drizzle at ob time
5/15/2018 7:00 AM 0.09 0.0 M 0.0 M Thunderstorm with hail 11:30am
5/21/2018 7:00 AM 0.38 0.5 0.25 T M Thunderstorm with 1/2 inch hail 3-4pm: half inch deep
5/22/2018 7:00 AM 0.00 0.0 M M M
5/23/2018 7:00 AM 0.14 T M T M Thunderstorm with 3/8 inch hail
5/24/2018 7:00 AM T M M M M
5/25/2018 7:00 AM 0.00 0.0 M M M
5/26/2018 7:00 AM 0.00 0.0 M M M
5/27/2018 7:00 AM 0.00 0.0 M M M
5/28/2018 7:00 AM 0.00 0.0 M M M
5/29/2018 7:00 AM 0.06 M M M M Thunderstorm
5/30/2018 7:00 AM T M M M M
5/31/2018 7:00 AM 0.00 0.0 M M M Thunder heard
6/1/2018 7:00 AM 0.00 0.0 M M M
6/2/2018 7:00 AM 0.00 0.0 M M M
6/3/2018 7:00 AM 0.00 0.0 M M M
6/4/2018 7:00 AM T M M M M
8/2/2018 7:00 AM 0.00 0.0 M M M
8/3/2018 7:00 AM T M M M M Brief afternoon shower
8/4/2018 7:00 AM 0.10 M M M M
8/8/2018 7:00 AM 0.00 0.0 M M M
8/9/2018 7:00 AM T M M M M
8/10/2018 7:00 AM 0.00 0.0 M M M
8/11/2018 7:00 AM 0.00 0.0 M M M
8/12/2018 7:00 AM 0.00 0.0 M M M
8/13/2018 7:00 AM 0.00 0.0 M M M
8/14/2018 7:00 AM 0.00 0.0 M M M
8/15/2018 7:00 AM 0.02 M M M M Thunder heard aftn
8/16/2018 7:00 AM 0.00 0.0 M M M
8/17/2018 7:00 AM T M M M M
8/18/2018 7:00 AM 0.00 0.0 M M M
8/19/2018 7:00 AM 0.06 M M M M Lightning N 10-11pm
8/20/2018 7:00 AM 0.00 0.0 M M M
8/21/2018 7:00 AM 0.01 M M M M Light rain at ob time
8/22/2018 7:00 AM 0.10 M M M M Light rain
8/23/2018 7:00 AM 0.00 0.0 M M M
8/24/2018 7:00 AM 0.00 0.0 M M M
8/25/2018 7:00 AM 0.02 M M M M 5
8/26/2018 7:00 AM T M M M M
8/27/2018 7:00 AM 0.20 M M M M
8/28/2018 7:00 AM 0.00 0.0 M M M
8/29/2018 7:00 AM 0.00 0.0 M M M
8/30/2018 7:00 AM 0.00 0.0 M M M
8/31/2018 7:00 AM 0.00 0.0 M M M
9/1/2018 7:00 AM 0.00 0.0 M M M
9/2/2018 7:00 AM 0.08 M M M M
9/3/2018 7:00 AM 0.00 0.0 M M M
9/4/2018 7:00 AM T M M M M
9/5/2018 7:00 AM 0.02 M M M M Rare nighttime thunderstrorms
9/6/2018 7:00 AM 0.23 M M M M
9/7/2018 7:00 AM 0.08 M M M M Thunderstorm
9/8/2018 7:00 AM 0.01 M M M M
9/9/2018 7:00 AM 0.00 0.0 M M M
9/10/2018 7:00 AM 0.00 0.0 M M M
9/11/2018 7:00 AM 0.00 0.0 M M M
9/12/2018 7:00 AM 0.01 M M M M
9/13/2018 7:00 AM 0.00 0.0 M M M
9/14/2018 7:00 AM 0.00 0.0 M M M
9/15/2018 7:00 AM 0.00 0.0 M M M
9/16/2018 7:00 AM 0.00 0.0 M M M
9/18/2018 7:00 AM 0.00 0.0 M M M
9/23/2018 7:00 AM 0.00 0.0 M M M
9/24/2018 7:00 AM 0.00 0.0 M M M
9/25/2018 7:00 AM 0.07 M M M M
9/26/2018 7:00 AM 0.00 0.0 M M M
9/27/2018 7:00 AM 0.00 0.0 M M M
9/28/2018 7:00 AM 0.00 0.0 M M M
9/29/2018 7:00 AM 0.00 0.0 M M M
9/30/2018 7:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/12/2017 10/15/2017 7:00 AM 4 0.00 T M
5/16/2018 5/20/2018 7:00 AM 5 0.63 1.0 M
6/5/2018 8/01/2018 7:00 AM 58 2.67 M M
8/5/2018 8/07/2018 7:00 AM 3 0.05 M M
9/19/2018 9/22/2018 7:00 AM 4 0.19 M M Rain was all on 9/19



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
5/14/2018 11:30 AM 1/4" Pea Size 1/4" Pea Size Rice Hard|White Ice 5 2min no damage Continuous False Same time as rain Same time as smaller hail vertical
5/20/2018 3:15 PM Hail covered the ground to about 1/2 inches deep 1/2" Grape 1/4" Pea Size Rice Hard|White Ice 30 3min minor leaf damage Intermittent False After rain After smaller hail vertical
5/22/2018 6:25 PM 3/8" 1/4" Pea Size Rice Soft|White Ice 10 no damage Continuous False After rain After smaller hail vertical