Station Overview Station Location
Station Number CO-BO-367 Latitude 40.0022352486849
Station Name Lafayette 0.9 NE Longitude -105.085123032331
County Boulder Elevation (ft) 5199



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 1.08 0.73 1 0.73 1 0.00 0 0 1 0 0.0 0 0
Nov 17 0.92 0.33 2 0.33 2 0.00 0 0 2 0 0.0 0 0
Dec 17 0.67 0.12 2 0.12 2 0.00 0 0 2 0 0.0 0 0
Jan 18 0.47 0.40 2 0.40 2 0.00 0 0 2 0 0.0 0 1
Feb 18 0.44 0.15 1 0.15 1 0.00 0 0 1 0 0.0 0 0
March 18 1.56 0.71 2 0.71 2 0.00 0 0 2 0 0.0 0 0
April 18 1.94 0.95 16 0.10 1 0.85 15 1 1 0 0.0 0 0
May 18 2.21 2.83 10 2.83 10 0.00 0 0 10 0 0.0 0 0
June 18 1.86 0.90 3 0.90 3 0.00 0 0 3 0 0.0 0 0
July 18 1.54 1.76 6 1.76 6 0.00 0 0 6 0 0.0 0 0
Aug 18 1.63 1.75 2 1.75 2 0.00 0 0 2 0 0.0 0 0
Sept 18 1.39 0.75 1 0.75 1 0.00 0 0 1 0 0.0 0 0
Water Year Totals: 15.71" 11.38" 48 days 10.53" 33 0.85" 15 days 1 33 days 0 days 0.0" 0 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
10/1/2017
10/2/2017 0.73
10/3/2017
10/4/2017
10/5/2017
10/6/2017
10/7/2017
10/8/2017
10/9/2017
10/10/2017 M
10/11/2017
10/12/2017
10/13/2017
10/14/2017
10/15/2017
10/16/2017
10/17/2017
10/18/2017
10/19/2017
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 0.14
11/6/2017
11/7/2017 0.19
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 0.04
12/15/2017
12/16/2017
12/17/2017
12/18/2017
12/19/2017
12/20/2017
12/21/2017
12/22/2017 0.08
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 0.27
1/22/2018 0.13
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 0.15
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 M
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 0.33
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 0.38
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 0.10
4/11/2018 **
4/12/2018 **
4/13/2018 **
4/14/2018 **
4/15/2018 **
4/16/2018 **
4/17/2018 **
4/18/2018 **
4/19/2018 **
4/20/2018 **
4/21/2018 **
4/22/2018 **
4/23/2018 **
4/24/2018 **
4/25/2018 0.85
4/26/2018
4/27/2018
4/28/2018
4/29/2018
4/30/2018
5/1/2018
5/2/2018
5/3/2018 0.73
5/4/2018 0.62
5/5/2018
5/6/2018
5/7/2018
5/8/2018
5/9/2018
5/10/2018
5/11/2018
5/12/2018
5/13/2018 0.56
5/14/2018 0.33
5/15/2018 0.07
5/16/2018
5/17/2018
5/18/2018
5/19/2018 0.05
5/20/2018 0.06
5/21/2018 0.03
5/22/2018
5/23/2018 0.26
5/24/2018
5/25/2018
5/26/2018
5/27/2018
5/28/2018
5/29/2018 0.12
5/30/2018
5/31/2018
6/1/2018
6/2/2018
6/3/2018
6/4/2018
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 0.22
6/19/2018 0.66
6/20/2018 0.02
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 0.27
7/17/2018
7/18/2018
7/19/2018
7/20/2018
7/21/2018
7/22/2018
7/23/2018 0.07
7/24/2018 0.69
7/25/2018
7/26/2018 0.67
7/27/2018 0.04
7/28/2018 0.02
7/29/2018
7/30/2018
7/31/2018
8/1/2018
8/2/2018
8/3/2018
8/4/2018
8/5/2018
8/6/2018
8/7/2018
8/8/2018
8/9/2018
8/10/2018
8/11/2018
8/12/2018
8/13/2018
8/14/2018
8/15/2018 0.53
8/16/2018
8/17/2018
8/18/2018
8/19/2018 1.22
8/20/2018
8/21/2018
8/22/2018
8/23/2018
8/24/2018
8/25/2018
8/26/2018
8/27/2018
8/28/2018
8/29/2018
8/30/2018
8/31/2018
9/1/2018
9/2/2018
9/3/2018
9/4/2018
9/5/2018 0.75
9/6/2018
9/7/2018
9/8/2018
9/9/2018
9/10/2018
9/11/2018
9/12/2018
9/13/2018
9/14/2018
9/15/2018
9/16/2018
9/17/2018
9/18/2018
9/19/2018
9/20/2018
9/21/2018
9/22/2018
9/23/2018
9/24/2018
9/25/2018
9/26/2018
9/27/2018
9/28/2018
9/29/2018
9/30/2018



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2017 5:00 AM 0.73 M M M M
10/10/2017 6:00 AM M M M M M {EDIT: Observer reported 0.70 of new precip. This is high compared to surrounding reports. Duration information appears to indicate this is a multi-day report instead of a 24 hour report. Changed report of 0.70 to NA until observer can be contacted to verify. Submission Time Before EDIT: 10/10/2017 5:46 AM CoCoSTAFF DNT}
11/5/2017 7:00 AM 0.14 M M M M
11/7/2017 7:00 AM 0.19 M M M M
12/14/2017 7:00 AM 0.04 M M M M
12/22/2017 7:00 AM 0.08 M M M M
1/21/2018 7:00 AM 0.27 M M 2.8 M
1/22/2018 5:57 AM 0.13 M M M M
2/11/2018 7:00 AM 0.15 M M M M
2/21/2018 7:00 AM M M M M M {EDIT: Observer reported 0.27 for new precip. QPE data and surrounding reports of 0.00's indicate this could be a date error or a multi-day report. Changed report of 0.27 to NA until observer can be contacted to verify. Submission Time Before EDIT: 2/21/2018 7:49 AM CoCoSTAFF DNT}
3/16/2018 7:00 AM 0.33 M M M M
3/29/2018 7:00 AM 0.38 M M M M
4/10/2018 6:00 AM 0.10 M M M M
5/3/2018 6:10 AM 0.73 M M M M Still raining
5/4/2018 7:00 AM 0.62 M M M M
5/13/2018 7:00 AM 0.56 M M M M
5/14/2018 6:07 AM 0.33 M M M M
5/15/2018 5:45 AM 0.07 M M M M
5/19/2018 7:00 AM 0.05 M M M M
5/20/2018 7:00 AM 0.06 M M M M
5/21/2018 7:00 AM 0.03 M M M M
5/23/2018 7:00 AM 0.26 M M M M
5/29/2018 7:00 AM 0.12 M M M M
6/18/2018 7:00 AM 0.22 M M M M
6/19/2018 6:00 AM 0.66 M M M M We had ping-pong ball sized hail in the first wave and smaller in a second. The first hail lasted for about a minute then became brief but torrential rain. The stopped for a few minutes and then the second wave hit and it REALLY rained.
6/20/2018 7:00 AM 0.02 M M M M
7/16/2018 6:10 AM 0.27 M M M M
7/23/2018 7:00 AM 0.07 M M M M
7/24/2018 6:00 AM 0.69 M M M M
7/26/2018 6:11 AM 0.67 M M M M Unbelievable thunder 2:15 to 3:15 am. No hail, thogh.
7/27/2018 6:43 AM 0.04 M M M M
7/28/2018 6:48 AM 0.02 M M M M
8/15/2018 7:00 AM 0.53 M M M M
8/19/2018 6:00 AM 1.22 M M M M Most of this fell in a 20 minute period starting about 10 p.m.. The velocity was so fierce that water began pouring in behind the trim on a first-floor window on the north side of the house. There was tiny hail. The temperature dropped to about 42 degrees.
9/5/2018 7:00 AM 0.75 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
4/11/2018 4/25/2018 7:00 AM 15 0.85 M M



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
6/18/2018 7:45 PM I do not have a pad. I did take some photos and video, though. 1 1/2" Ping Pong Ball Size 1" Quarter Size 1/4" Pea Size Mixed|Clear Ice|White Ice 30 2min shredded leaves Intermittent True Same time as rain After smaller hail 30-40