Station Overview Station Location
Station Number CO-BO-407 Latitude 39.9810752868652
Station Name Lafayette 1.0 SSW Longitude -105.106269836426
County Boulder Elevation (ft) 5244



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 16 1.12 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 16 0.93 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 16 0.70 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 17 0.49 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 17 0.47 0.29 10 0.29 10 0.00 0 0 2 1 3.0 1 1
March 17 1.56 0.94 24 0.94 24 0.00 0 0 6 1 0.0 0 0
April 17 2.00 1.90 26 1.90 26 0.00 0 0 11 3 0.0 0 0
May 17 2.26 2.07 27 1.41 22 0.66 5 1 9 4 0.0 0 0
June 17 1.93 0.15 26 0.15 26 0.00 0 0 2 2 0.0 0 0
July 17 1.53 0.10 30 0.10 19 0.00 11 0 2 0 0.0 0 0
Aug 17 1.68 1.78 26 0.14 9 1.64 17 2 1 1 0.0 0 0
Sept 17 1.39 1.01 28 0.93 19 0.08 9 2 8 1 0.0 0 0
Water Year Totals: 16.06" 8.24" 197 days 5.86" 155 2.38" 42 days 5 41 days 13 days 3.0" 1 days 1 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
10/1/2016
10/2/2016
10/3/2016
10/4/2016
10/5/2016
10/6/2016
10/7/2016
10/8/2016
10/9/2016
10/10/2016
10/11/2016
10/12/2016
10/13/2016
10/14/2016
10/15/2016
10/16/2016
10/17/2016
10/18/2016
10/19/2016
10/20/2016
10/21/2016
10/22/2016
10/23/2016
10/24/2016
10/25/2016
10/26/2016
10/27/2016
10/28/2016
10/29/2016
10/30/2016
10/31/2016
11/1/2016
11/2/2016
11/3/2016
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016
11/18/2016
11/19/2016
11/20/2016
11/21/2016
11/22/2016
11/23/2016
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016
11/30/2016
12/1/2016
12/2/2016
12/3/2016
12/4/2016
12/5/2016
12/6/2016
12/7/2016
12/8/2016
12/9/2016
12/10/2016
12/11/2016
12/12/2016
12/13/2016
12/14/2016
12/15/2016
12/16/2016
12/17/2016
12/18/2016
12/19/2016
12/20/2016
12/21/2016
12/22/2016
12/23/2016
12/24/2016
12/25/2016
12/26/2016
12/27/2016
12/28/2016
12/29/2016
12/30/2016
12/31/2016
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017
1/3/2017
1/4/2017
1/5/2017
1/6/2017
1/7/2017
1/8/2017
1/9/2017
1/10/2017
1/11/2017
1/12/2017
1/13/2017
1/14/2017
1/15/2017
1/16/2017
1/17/2017
1/18/2017
1/19/2017
1/20/2017
1/21/2017
1/22/2017
1/23/2017
1/24/2017
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017
1/30/2017
1/31/2017
2/1/2017
2/2/2017
2/3/2017
2/4/2017
2/5/2017
2/6/2017
2/7/2017
2/8/2017
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017
2/14/2017 0.00
2/15/2017 0.00
2/16/2017 0.00
2/17/2017 0.00
2/18/2017
2/19/2017 T
2/20/2017 0.00
2/21/2017
2/22/2017
2/23/2017 0.27
2/24/2017 0.02
2/25/2017
2/26/2017
2/27/2017 0.00
2/28/2017 0.00
3/1/2017 0.00
3/2/2017
3/3/2017
3/4/2017
3/5/2017 0.00
3/6/2017 0.00
3/7/2017 0.00
3/8/2017
3/9/2017 0.00
3/10/2017
3/11/2017 0.03
3/12/2017 0.00
3/13/2017 0.00
3/14/2017 0.00
3/15/2017 0.00
3/16/2017 0.00
3/17/2017 0.00
3/18/2017 0.00
3/19/2017 0.00
3/20/2017 0.00
3/21/2017 0.00
3/22/2017 0.00
3/23/2017 0.00
3/24/2017 0.27
3/25/2017
3/26/2017 0.07
3/27/2017
3/28/2017 0.31
3/29/2017 0.07
3/30/2017 T
3/31/2017 0.19
Day of YearDaily PrcpMultiday Prcp
4/1/2017 0.24
4/2/2017 0.00
4/3/2017 0.06
4/4/2017 0.60
4/5/2017 0.41
4/6/2017 T
4/7/2017 0.00
4/8/2017 0.00
4/9/2017 0.00
4/10/2017
4/11/2017
4/12/2017 0.00
4/13/2017 0.00
4/14/2017 0.00
4/15/2017 0.00
4/16/2017 0.00
4/17/2017 0.00
4/18/2017
4/19/2017 0.00
4/20/2017 0.07
4/21/2017 0.23
4/22/2017 0.07
4/23/2017 0.00
4/24/2017 T
4/25/2017 0.09
4/26/2017 0.06
4/27/2017 0.05
4/28/2017 T
4/29/2017
4/30/2017 0.02
5/1/2017 0.00
5/2/2017 0.01
5/3/2017 0.27
5/4/2017
5/5/2017 0.00
5/6/2017
5/7/2017 T
5/8/2017 0.09
5/9/2017 0.32
5/10/2017 T
5/11/2017 0.19
5/12/2017 0.00
5/13/2017 0.00
5/14/2017 0.00
5/15/2017 0.00
5/16/2017 0.06
5/17/2017 T
5/18/2017
5/19/2017 **
5/20/2017 **
5/21/2017 **
5/22/2017 **
5/23/2017 0.66
5/24/2017 0.00
5/25/2017 T
5/26/2017 0.37
5/27/2017 0.07
5/28/2017
5/29/2017 0.03
5/30/2017 0.00
5/31/2017 0.00
6/1/2017
6/2/2017 0.00
6/3/2017
6/4/2017 0.00
6/5/2017 0.00
6/6/2017
6/7/2017 0.01
6/8/2017
6/9/2017 0.00
6/10/2017 0.00
6/11/2017 0.00
6/12/2017 0.00
6/13/2017 0.00
6/14/2017 0.00
6/15/2017 0.00
6/16/2017 0.00
6/17/2017 0.00
6/18/2017 0.00
6/19/2017 0.00
6/20/2017 0.00
6/21/2017 T
6/22/2017 T
6/23/2017 0.14
6/24/2017 0.00
6/25/2017 0.00
6/26/2017 0.00
6/27/2017 0.00
6/28/2017 0.00
6/29/2017 0.00
6/30/2017 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2017 0.00
7/2/2017 0.00
7/3/2017 0.00
7/4/2017 0.00
7/5/2017 0.00
7/6/2017 0.00
7/7/2017 0.00
7/8/2017 0.00
7/9/2017 0.00
7/10/2017 0.00
7/11/2017 0.00
7/12/2017 0.03
7/13/2017 0.00
7/14/2017 0.00
7/15/2017 0.07
7/16/2017 0.00
7/17/2017 0.00
7/18/2017 0.00
7/19/2017 0.00
7/20/2017
7/21/2017 **
7/22/2017 **
7/23/2017 **
7/24/2017 **
7/25/2017 **
7/26/2017 **
7/27/2017 **
7/28/2017 **
7/29/2017 **
7/30/2017 **
7/31/2017 **
8/1/2017 **
8/2/2017 **
8/3/2017 **
8/4/2017 **
8/5/2017 **
8/6/2017 **
8/7/2017 **
8/8/2017 **
8/9/2017 **
8/10/2017 **
8/11/2017 **
8/12/2017 1.64
8/13/2017
8/14/2017 0.00
8/15/2017 T
8/16/2017 0.14
8/17/2017
8/18/2017
8/19/2017
8/20/2017 **
8/21/2017 **
8/22/2017 **
8/23/2017 **
8/24/2017 0.00
8/25/2017 0.00
8/26/2017 0.00
8/27/2017 0.00
8/28/2017 0.00
8/29/2017 0.00
8/30/2017 0.00
8/31/2017
9/1/2017 0.02
9/2/2017
9/3/2017
9/4/2017 0.00
9/5/2017 0.00
9/6/2017 0.00
9/7/2017 0.00
9/8/2017 0.00
9/9/2017 0.00
9/10/2017 0.00
9/11/2017 0.00
9/12/2017 0.00
9/13/2017 0.00
9/14/2017 0.01
9/15/2017 **
9/16/2017 **
9/17/2017 **
9/18/2017 **
9/19/2017 **
9/20/2017 **
9/21/2017 0.00
9/22/2017 T
9/23/2017 0.48
9/24/2017 0.37
9/25/2017 0.02
9/26/2017 **
9/27/2017 0.08
9/28/2017 0.01
9/29/2017 0.01
9/30/2017 0.01



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
2/14/2017 6:00 PM 0.00 0.0 M M M
2/15/2017 6:00 PM 0.00 0.0 M M M
2/16/2017 6:00 PM 0.00 0.0 M M M
2/17/2017 6:00 PM 0.00 0.0 M M M
2/19/2017 6:00 PM T M M M M Light sprinkle
2/20/2017 6:00 PM 0.00 0.0 M M M
2/23/2017 6:00 PM 0.27 3.0 M 0.5 M Snowed most of day
2/24/2017 6:00 PM 0.02 T M T M
2/27/2017 6:00 PM 0.00 0.0 M M M
2/28/2017 6:00 PM 0.00 0.0 M M M
3/1/2017 6:00 PM 0.00 0.0 M M M clear skies, moderate temps
3/5/2017 6:00 PM 0.00 0.0 M M M
3/6/2017 6:00 PM 0.00 0.0 M M M
3/7/2017 6:00 PM 0.00 0.0 M M M
3/9/2017 6:00 PM 0.00 0.0 M M M
3/11/2017 4:30 PM 0.03 M M M M
3/12/2017 6:00 PM 0.00 0.0 M M M
3/13/2017 6:00 PM 0.00 0.0 M M M
3/14/2017 6:00 PM 0.00 0.0 M M M
3/15/2017 6:00 PM 0.00 0.0 M M M
3/16/2017 6:00 PM 0.00 0.0 M M M
3/17/2017 6:00 PM 0.00 0.0 M M M
3/18/2017 6:00 PM 0.00 0.0 M M M
3/19/2017 6:00 PM 0.00 0.0 M M M
3/20/2017 6:00 PM 0.00 0.0 M M M
3/21/2017 6:00 PM 0.00 0.0 M M M
3/22/2017 6:00 PM 0.00 0.0 M M M
3/23/2017 6:00 PM 0.00 0.0 M M M
3/24/2017 6:00 PM 0.27 M M M M
3/26/2017 6:00 PM 0.07 M M M M Rainy, cloudy day in Boulder
3/28/2017 6:00 PM 0.31 M M M M Rain started around midday, continued up through 6pm
3/29/2017 6:00 PM 0.07 M M M M
3/30/2017 6:00 PM T M M M M T
3/31/2017 3:13 PM 0.19 M M M M
4/1/2017 6:00 PM 0.24 M M M M RaIny day
4/2/2017 6:00 PM 0.00 0.0 M M M
4/3/2017 5:00 PM 0.06 M M M M
4/4/2017 9:30 PM 0.60 M M M M Snowy, rainy day
4/5/2017 6:00 PM 0.41 M M M M clear day; snowed previous night
4/6/2017 6:00 PM T M M M M
4/7/2017 6:00 PM 0.00 0.0 M M M dry day
4/8/2017 6:00 PM 0.00 0.0 M M M dry & windy
4/9/2017 6:00 PM 0.00 0.0 M M M dry & windy
4/12/2017 6:00 PM 0.00 0.0 M M M dry
4/13/2017 6:00 PM 0.00 0.0 M M M dry & windy
4/14/2017 6:00 PM 0.00 0.0 M M M
4/15/2017 6:00 PM 0.00 0.0 M M M clear & dry
4/16/2017 6:00 PM 0.00 0.0 M M M
4/17/2017 6:00 PM 0.00 0.0 M M M
4/19/2017 6:00 PM 0.00 0.0 M M M
4/20/2017 6:00 PM 0.07 M M M M partly cloudy day
4/21/2017 6:00 PM 0.23 M M M M cool & rainy day
4/22/2017 6:00 PM 0.07 M M M M misty morning; clear afternoon
4/23/2017 6:00 PM 0.00 0.0 M M M clear skies
4/24/2017 6:00 PM T M M M M light rain started about 6pm
4/25/2017 6:00 PM 0.09 M M M M light, sporatic rain, partly cloudy
4/26/2017 6:00 PM 0.06 M M M M cool & cloudy
4/27/2017 6:00 PM 0.05 M M M M rained last night...partly cloudy today
4/28/2017 6:00 PM T M M M M cool & cloudy
4/30/2017 6:00 PM 0.02 M M M M clear & windy
5/1/2017 6:00 PM 0.00 0.0 M M M clear
5/2/2017 6:00 PM 0.01 M M M M Light rain started just before 6pm....some thunder & lightning
5/3/2017 6:00 PM 0.27 M M M M rain last night & this morning
5/5/2017 6:00 PM 0.00 0.0 M M M clear & warm
5/7/2017 6:00 PM T M M M M Light rain sprinkles around 4pm
5/8/2017 6:00 PM 0.09 M M M M cool & cloudy
5/9/2017 6:00 PM 0.32 M M M M rainy night; cloudy morning
5/10/2017 6:00 PM T M M M M cool & cloudy
5/11/2017 6:00 PM 0.19 M M M M Rainy morning, clear afternoon
5/12/2017 6:00 PM 0.00 0.0 M M M clear
5/13/2017 6:00 PM 0.00 0.0 M M M clear
5/14/2017 6:00 PM 0.00 0.0 M M M clear day; cloudy afternoon; little bit of verga
5/15/2017 6:00 PM 0.00 0.0 M M M clear
5/16/2017 6:00 PM 0.06 M M M M scattered thunderstorms
5/17/2017 6:00 PM T M M M M partly cloudy; sprinkles
5/24/2017 6:00 PM 0.00 0.0 M M M clear
5/25/2017 6:00 PM T M M M M Increasing clouds
5/26/2017 6:00 PM 0.37 M M M M Rained last night, cleared this afternoon.
5/27/2017 6:00 PM 0.07 M M M M Rainy day, clearing in evening
5/29/2017 6:00 PM 0.03 M M M M Partly cloudy
5/30/2017 6:00 PM 0.00 0.0 M M M clear
5/31/2017 6:00 PM 0.00 0.0 M M M Clear
6/2/2017 6:00 PM 0.00 0.0 M M M Clear
6/4/2017 6:00 PM 0.00 0.0 M M M
6/5/2017 6:00 PM 0.00 0.0 M M M
6/7/2017 6:00 PM 0.01 M M M M Afternoon showers
6/9/2017 6:00 PM 0.00 0.0 M M M clear
6/10/2017 6:00 PM 0.00 0.0 M M M clear
6/11/2017 6:00 PM 0.00 0.0 M M M clear
6/12/2017 6:00 PM 0.00 0.0 M M M clear
6/13/2017 6:00 PM 0.00 0.0 M M M clear
6/14/2017 6:00 PM 0.00 0.0 M M M clear
6/15/2017 6:00 PM 0.00 0.0 M M M clear
6/16/2017 6:00 PM 0.00 0.0 M M M clear
6/17/2017 6:00 PM 0.00 0.0 M M M clear
6/18/2017 6:00 PM 0.00 0.0 M M M clear
6/19/2017 6:00 PM 0.00 0.0 M M M clear
6/20/2017 6:00 PM 0.00 0.0 M M M partly cloudy
6/21/2017 6:00 PM T M M M M light rain during night before, 6/20/17
6/22/2017 6:00 PM T M M M M cloudy
6/23/2017 6:00 PM 0.14 M M M M Rained last night...clear today.
6/24/2017 6:00 PM 0.00 0.0 M M M cloudy in morning, but no rain
6/25/2017 6:00 PM 0.00 0.0 M M M clear
6/26/2017 6:00 PM 0.00 0.0 M M M clear
6/27/2017 6:00 PM 0.00 0.0 M M M clear
6/28/2017 6:00 PM 0.00 0.0 M M M clear
6/29/2017 6:00 PM 0.00 0.0 M M M clear
6/30/2017 6:00 PM 0.00 0.0 M M M clear
7/1/2017 6:00 PM 0.00 0.0 M M M clear
7/2/2017 6:00 PM 0.00 0.0 M M M clear
7/3/2017 6:00 PM 0.00 0.0 M M M clear, hot
7/4/2017 6:00 PM 0.00 0.0 M M M
7/5/2017 6:00 PM 0.00 0.0 M M M clear
7/6/2017 6:00 PM 0.00 0.0 M M M clear
7/7/2017 6:00 PM 0.00 0.0 M M M
7/8/2017 6:00 PM 0.00 0.0 M M M
7/9/2017 6:00 PM 0.00 0.0 M M M
7/10/2017 6:00 PM 0.00 0.0 M M M
7/11/2017 6:00 PM 0.00 0.0 M M M cloudy, no rain
7/12/2017 6:00 PM 0.03 M M M M light rain, late in afternoon
7/13/2017 6:00 PM 0.00 0.0 M M M clear
7/14/2017 6:00 PM 0.00 0.0 M M M clear
7/15/2017 6:00 PM 0.07 M M M M afternoon showers
7/16/2017 6:00 PM 0.00 0.0 M M M clear
7/17/2017 6:00 PM 0.00 0.0 M M M clear
7/18/2017 6:00 PM 0.00 0.0 M M M
7/19/2017 6:00 PM 0.00 0.0 M M M cloudy, no precip
8/14/2017 6:00 PM 0.00 0.0 M M M clear
8/15/2017 6:00 PM T M M M M Cloudy, some sprinkles of rain
8/16/2017 6:00 PM 0.14 M M M M Rain during previous night
8/25/2017 6:00 PM 0.00 0.0 M M M clear
8/26/2017 6:00 PM 0.00 0.0 M M M clear
8/27/2017 6:00 PM 0.00 0.0 M M M clear
8/28/2017 6:00 PM 0.00 0.0 M M M clear
8/29/2017 6:00 PM 0.00 0.0 M M M clear
8/30/2017 6:00 PM 0.00 0.0 M M M partly cloudy, no rain
9/1/2017 6:00 PM 0.02 M M M M light rain during night before
9/4/2017 6:00 PM 0.00 0.0 M M M clear but smokey haze
9/5/2017 6:00 PM 0.00 0.0 M M M clear but smokey
9/6/2017 6:00 PM 0.00 0.0 M M M clear but smokey
9/7/2017 6:00 PM 0.00 0.0 M M M
9/8/2017 6:00 PM 0.00 0.0 M M M
9/9/2017 6:00 PM 0.00 0.0 M M M
9/10/2017 6:00 PM 0.00 0.0 M M M clear
9/11/2017 6:00 PM 0.00 0.0 M M M clear
9/12/2017 6:00 PM 0.00 0.0 M M M clear
9/13/2017 6:00 PM 0.00 0.0 M M M clear
9/14/2017 6:00 PM 0.01 M M M M slight sprinkle last night
9/22/2017 6:00 PM T M M M M clouds beginning to gather
9/23/2017 6:00 PM 0.48 M M M M Steady rain started about 4:30pm, still going at 6pm...cool temperature, about 50F
9/24/2017 9:00 PM 0.37 M M M M Rainy
9/25/2017 6:00 PM 0.02 M M M M Cloudy, no rain
9/28/2017 6:00 PM 0.01 M M M M
9/29/2017 6:00 PM 0.01 M M M M cloudy
9/30/2017 6:00 PM 0.01 M M M M partly cloudy; afternoon sprinkles



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
5/19/2017 5/23/2017 6:00 PM 5 0.66 M M
7/21/2017 8/12/2017 6:00 PM 23 1.64 M M
8/20/2017 8/24/2017 6:00 PM 5 0.00 M M clear, hot weather
9/15/2017 9/21/2017 6:00 PM 7 0.00 M M a stretch of dry weather
9/26/2017 9/27/2017 6:00 PM 2 0.08 M M cloudy, drizzly



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