Station Overview Station Location
Station Number NM-LA-18 Latitude 35.88612
Station Name Los Alamos 2.5 WSW Longitude -106.32833
County Los Alamos Elevation (ft) 7423



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 1.54 1.84 31 1.84 23 0.00 8 1 5 1 0.0 0 0
Nov 17 1.01 0.06 30 0.04 19 0.02 11 3 1 0 0.0 0 0
Dec 17 1.10 0.04 31 0.04 27 0.00 4 1 1 1 0.6 2 1
Jan 18 0.93 0.06 31 0.04 28 0.02 3 1 2 1 0.5 1 1
Feb 18 0.86 0.90 28 0.90 25 0.00 3 1 3 2 8.7 3 5
March 18 1.27 0.51 31 0.51 25 0.00 6 2 5 0 2.7 3 3
April 18 1.24 0.10 30 0.10 28 0.00 2 0 2 1 0.0 0 0
May 18 1.41 0.72 31 0.72 22 0.00 9 2 2 2 0.0 0 0
June 18 1.42 0.97 30 0.97 27 0.00 3 1 4 1 0.0 0 0
July 18 2.83 1.07 31 1.07 20 0.00 11 0 8 1 0.0 0 0
Aug 18 4.31 3.36 31 0.40 9 2.96 22 1 4 0 0.0 0 0
Sept 18 2.17 3.57 30 3.36 26 0.21 4 1 9 0 0.0 0 0
Water Year Totals: 20.09" 13.20" 365 days 9.99" 279 3.21" 86 days 14 46 days 10 days 12.5" 9 days 10 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 0.35
10/2/2017 T
10/3/2017 0.00
10/4/2017 0.02
10/5/2017 1.24
10/6/2017 0.22
10/7/2017 0.00
10/8/2017 0.00
10/9/2017 0.00
10/10/2017 0.00
10/11/2017 **
10/12/2017 **
10/13/2017 **
10/14/2017 **
10/15/2017 **
10/16/2017 **
10/17/2017 **
10/18/2017 0.00
10/19/2017 0.00
10/20/2017 0.01
10/21/2017 0.00
10/22/2017 0.00
10/23/2017 0.00
10/24/2017 0.00
10/25/2017 0.00
10/26/2017 0.00
10/27/2017 0.00
10/28/2017 0.00
10/29/2017 0.00
10/30/2017 0.00
10/31/2017 0.00
11/1/2017 0.00
11/2/2017 0.00
11/3/2017 **
11/4/2017 **
11/5/2017 **
11/6/2017 0.00
11/7/2017 0.00
11/8/2017 **
11/9/2017 **
11/10/2017 0.02
11/11/2017 0.00
11/12/2017 0.00
11/13/2017 0.00
11/14/2017 0.00
11/15/2017 0.00
11/16/2017 0.00
11/17/2017 0.00
11/18/2017 0.04
11/19/2017 0.00
11/20/2017 0.00
11/21/2017 0.00
11/22/2017 0.00
11/23/2017 0.00
11/24/2017 0.00
11/25/2017 **
11/26/2017 **
11/27/2017 **
11/28/2017 0.00
11/29/2017 0.00
11/30/2017 0.00
12/1/2017 0.00
12/2/2017 0.00
12/3/2017 0.00
12/4/2017 0.00
12/5/2017 0.00
12/6/2017 0.00
12/7/2017 T
12/8/2017 0.04
12/9/2017 0.00
12/10/2017 0.00
12/11/2017 0.00
12/12/2017 0.00
12/13/2017 0.00
12/14/2017 0.00
12/15/2017 0.00
12/16/2017 0.00
12/17/2017 0.00
12/18/2017 0.00
12/19/2017 0.00
12/20/2017 0.00
12/21/2017 0.00
12/22/2017 0.00
12/23/2017 **
12/24/2017 **
12/25/2017 **
12/26/2017 0.00
12/27/2017 0.00
12/28/2017 0.00
12/29/2017 0.00
12/30/2017 0.00
12/31/2017 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2018 0.00
1/2/2018 0.00
1/3/2018 0.00
1/4/2018 0.00
1/5/2018 0.00
1/6/2018 0.00
1/7/2018 **
1/8/2018 **
1/9/2018 0.02
1/10/2018 0.01
1/11/2018 0.00
1/12/2018 0.00
1/13/2018 0.00
1/14/2018 0.00
1/15/2018 0.00
1/16/2018 T
1/17/2018 0.00
1/18/2018 0.00
1/19/2018 0.00
1/20/2018 0.00
1/21/2018 0.03
1/22/2018 0.00
1/23/2018 0.00
1/24/2018 0.00
1/25/2018 0.00
1/26/2018 0.00
1/27/2018 0.00
1/28/2018 0.00
1/29/2018 0.00
1/30/2018 0.00
1/31/2018 0.00
2/1/2018 0.00
2/2/2018 0.00
2/3/2018 0.00
2/4/2018 0.00
2/5/2018 0.00
2/6/2018 0.00
2/7/2018 T
2/8/2018 0.00
2/9/2018 0.00
2/10/2018 0.00
2/11/2018 0.00
2/12/2018 **
2/13/2018 **
2/14/2018 0.00
2/15/2018 0.26
2/16/2018 T
2/17/2018 0.00
2/18/2018 0.00
2/19/2018 0.00
2/20/2018 0.29
2/21/2018 0.00
2/22/2018 0.35
2/23/2018 0.00
2/24/2018 0.00
2/25/2018 0.00
2/26/2018 0.00
2/27/2018 0.00
2/28/2018 0.00
3/1/2018 0.00
3/2/2018 0.00
3/3/2018 **
3/4/2018 **
3/5/2018 0.00
3/6/2018 0.00
3/7/2018 0.00
3/8/2018 0.00
3/9/2018 0.00
3/10/2018 0.00
3/11/2018 0.00
3/12/2018 0.10
3/13/2018 0.00
3/14/2018 0.00
3/15/2018 0.00
3/16/2018 0.11
3/17/2018 0.00
3/18/2018 0.00
3/19/2018 0.03
3/20/2018 0.00
3/21/2018 0.00
3/22/2018 0.00
3/23/2018 0.00
3/24/2018 **
3/25/2018 **
3/26/2018 0.00
3/27/2018 0.03
3/28/2018 0.24
3/29/2018 0.00
3/30/2018 0.00
3/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.00
4/2/2018 0.00
4/3/2018 0.00
4/4/2018 0.00
4/5/2018 0.00
4/6/2018 0.00
4/7/2018 0.00
4/8/2018 T
4/9/2018 0.01
4/10/2018 0.00
4/11/2018 0.00
4/12/2018 0.00
4/13/2018 0.00
4/14/2018 0.00
4/15/2018 0.00
4/16/2018 0.00
4/17/2018 0.00
4/18/2018 0.00
4/19/2018 0.00
4/20/2018 0.09
4/21/2018 0.00
4/22/2018 0.00
4/23/2018 0.00
4/24/2018 0.00
4/25/2018 0.00
4/26/2018 0.00
4/27/2018 0.00
4/28/2018 0.00
4/29/2018 **
4/30/2018 **
5/1/2018 0.00
5/2/2018 0.00
5/3/2018 0.01
5/4/2018 0.00
5/5/2018 T
5/6/2018 0.00
5/7/2018 0.00
5/8/2018 0.00
5/9/2018 0.00
5/10/2018 **
5/11/2018 **
5/12/2018 **
5/13/2018 **
5/14/2018 **
5/15/2018 **
5/16/2018 **
5/17/2018 0.00
5/18/2018 0.00
5/19/2018 0.00
5/20/2018 0.00
5/21/2018 0.00
5/22/2018 0.71
5/23/2018 T
5/24/2018 0.00
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.00
5/28/2018 0.00
5/29/2018 0.00
5/30/2018 0.00
5/31/2018 0.00
6/1/2018 0.00
6/2/2018 0.00
6/3/2018 0.00
6/4/2018 0.20
6/5/2018 0.00
6/6/2018 0.00
6/7/2018 0.00
6/8/2018 0.00
6/9/2018 0.00
6/10/2018 0.00
6/11/2018 0.00
6/12/2018 0.00
6/13/2018 0.00
6/14/2018 T
6/15/2018 0.00
6/16/2018 0.05
6/17/2018 0.57
6/18/2018 0.15
6/19/2018 0.00
6/20/2018 0.00
6/21/2018 0.00
6/22/2018 0.00
6/23/2018 0.00
6/24/2018 **
6/25/2018 **
6/26/2018 0.00
6/27/2018 0.00
6/28/2018 0.00
6/29/2018 0.00
6/30/2018 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.00
7/2/2018 0.00
7/3/2018 0.07
7/4/2018 0.00
7/5/2018 0.00
7/6/2018 0.06
7/7/2018 0.00
7/8/2018 0.00
7/9/2018 T
7/10/2018 0.07
7/11/2018 0.00
7/12/2018 0.03
7/13/2018 0.00
7/14/2018 0.53
7/15/2018 0.00
7/16/2018 0.08
7/17/2018 0.04
7/18/2018 0.19
7/19/2018 0.00
7/20/2018 0.00
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 **
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 **
8/16/2018 **
8/17/2018 **
8/18/2018 **
8/19/2018 **
8/20/2018 **
8/21/2018 **
8/22/2018 2.96
8/23/2018 0.07
8/24/2018 0.00
8/25/2018 0.04
8/26/2018 0.09
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 0.26
9/2/2018 0.00
9/3/2018 0.90
9/4/2018 0.23
9/5/2018 0.62
9/6/2018 0.99
9/7/2018 **
9/8/2018 **
9/9/2018 **
9/10/2018 0.21
9/11/2018 0.00
9/12/2018 0.00
9/13/2018 0.00
9/14/2018 0.00
9/15/2018 0.00
9/16/2018 0.00
9/17/2018 0.00
9/18/2018 0.00
9/19/2018 0.00
9/20/2018 0.25
9/21/2018 0.02
9/22/2018 0.00
9/23/2018 0.00
9/24/2018 0.00
9/25/2018 0.00
9/26/2018 0.08
9/27/2018 0.01
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 8:00 AM 0.35 M M M M Heavy rain late a.m., more @ 16:00 and at night.
10/2/2017 8:00 AM T M M M M
10/3/2017 8:00 AM 0.00 0.0 M M M
10/4/2017 8:00 AM 0.02 M M M M Early a.m. rain.
10/5/2017 8:00 AM 1.24 M M M M Still raining at observation time.
10/6/2017 8:00 AM 0.22 M M M M rain tapered off slowly in a.m.; done by ~11:15, but some more from ~13:15 to -13:30 and 13:50 to 14:05 and ~18:45 to ? and at night.
10/7/2017 8:00 AM 0.00 0.0 M M M
10/8/2017 8:00 AM 0.00 0.0 M M M
10/9/2017 8:00 AM 0.00 0.0 M M M
10/10/2017 8:00 AM 0.00 0.0 M M M
10/19/2017 8:00 AM 0.00 0.0 M M M
10/20/2017 8:00 AM 0.01 M M M M Very little rain after 15:45.
10/21/2017 8:00 AM 0.00 0.0 M M M
10/22/2017 8:00 AM 0.00 0.0 M M M
10/23/2017 8:00 AM 0.00 0.0 M M M
10/24/2017 8:00 AM 0.00 0.0 M M M
10/25/2017 8:00 AM 0.00 0.0 M M M
10/26/2017 8:00 AM 0.00 0.0 M M M
10/27/2017 8:00 AM 0.00 0.0 M M M
10/28/2017 8:00 AM 0.00 0.0 M M M
10/29/2017 8:00 AM 0.00 0.0 M M M
10/30/2017 8:00 AM 0.00 0.0 M M M
10/31/2017 8:00 AM 0.00 0.0 M M M
11/1/2017 8:00 AM 0.00 0.0 M M M
11/2/2017 8:00 AM 0.00 0.0 M M M
11/7/2017 8:00 AM 0.00 0.0 M M M
11/11/2017 8:00 AM 0.00 0.0 M M M
11/12/2017 8:00 AM 0.00 0.0 M M M
11/13/2017 8:00 AM 0.00 0.0 M M M
11/14/2017 8:00 AM 0.00 0.0 M M M
11/15/2017 8:00 AM 0.00 0.0 M M M
11/16/2017 8:00 AM 0.00 0.0 M M M
11/17/2017 8:00 AM 0.00 0.0 M M M
11/18/2017 8:00 AM 0.04 M M M M Two drops 11:10 & 11:18, a tiny amount of hail @ 11:23, more spurts of rain at 11:43, 12:27, and 12:45, and at 13:20 started an intermittent drizzle until ~14:30. A bit more later in the evening.
11/19/2017 8:00 AM 0.00 0.0 M M M
11/20/2017 8:00 AM 0.00 0.0 M M M
11/21/2017 8:00 AM 0.00 0.0 M M M
11/22/2017 8:00 AM 0.00 0.0 M M M
11/23/2017 8:00 AM 0.00 0.0 M M M
11/24/2017 8:00 AM 0.00 0.0 M M M
11/29/2017 8:00 AM 0.00 0.0 M M M
11/30/2017 8:00 AM 0.00 0.0 M M M
12/1/2017 8:00 AM 0.00 0.0 M M M
12/2/2017 8:00 AM 0.00 0.0 M M M
12/3/2017 8:00 AM 0.00 0.0 M M M
12/4/2017 8:00 AM 0.00 0.0 M M M
12/5/2017 8:00 AM 0.00 0.0 M M M
12/6/2017 8:00 AM 0.00 0.0 M M M
12/7/2017 8:00 AM T 0.1 M 0.0 M Just a dusting of snow overnight; too little to measure water content
12/8/2017 8:00 AM 0.04 0.5 0.03 0.5 0.03 Snow depth is at observation time. Shortly after it had stopped, the depth was 1.0" and had 0.04" water content, some of the driest snow I have seen!
12/9/2017 8:00 AM 0.00 0.0 M M M Snow mostly gone except for shady places.
12/10/2017 8:00 AM 0.00 0.0 M M M
12/11/2017 8:00 AM 0.00 0.0 M M M
12/12/2017 8:00 AM 0.00 0.0 M M M
12/13/2017 8:00 AM 0.00 0.0 M M M
12/14/2017 8:00 AM 0.00 0.0 M M M
12/15/2017 8:00 AM 0.00 0.0 M M M
12/16/2017 8:00 AM 0.00 0.0 M M M
12/17/2017 8:00 AM 0.00 0.0 M M M
12/18/2017 8:00 AM 0.00 0.0 M M M
12/19/2017 8:00 AM 0.00 0.0 M M M
12/20/2017 8:00 AM 0.00 0.0 M M M
12/21/2017 8:00 AM 0.00 0.0 M M M
12/22/2017 8:00 AM 0.00 0.0 M M M
12/27/2017 8:00 AM 0.00 0.0 M M M
12/28/2017 8:00 AM 0.00 0.0 M M M
12/29/2017 8:00 AM 0.00 0.0 M M M
12/30/2017 8:00 AM 0.00 0.0 M M M
12/31/2017 8:00 AM 0.00 0.0 M M M
1/1/2018 8:00 AM 0.00 0.0 M M M
1/2/2018 8:00 AM 0.00 0.0 M M M
1/3/2018 8:00 AM 0.00 0.0 M M M
1/4/2018 8:00 AM 0.00 0.0 M M M
1/5/2018 8:00 AM 0.00 0.0 M M M
1/6/2018 8:00 AM 0.00 0.0 M M M
1/10/2018 8:00 AM 0.01 M M M M
1/11/2018 8:00 AM 0.00 0.0 M M M
1/12/2018 8:00 AM 0.00 0.0 M M M
1/13/2018 8:00 AM 0.00 0.0 M M M
1/14/2018 8:00 AM 0.00 0.0 M M M
1/15/2018 8:00 AM 0.00 0.0 M M M
1/16/2018 8:00 AM T T M M M Just a very light dusting of snow.
1/17/2018 8:00 AM 0.00 0.0 M M M
1/18/2018 8:00 AM 0.00 0.0 M M M
1/19/2018 8:00 AM 0.00 0.0 M M M
1/20/2018 8:00 AM 0.00 0.0 M M M
1/21/2018 8:00 AM 0.03 0.5 0.03 0.5 0.03 Snow early a.m. Very light snow continuing @ 08:00.
1/22/2018 8:00 AM 0.00 0.0 M M M Yesterday's snow gone from all but the shadiest places.
1/23/2018 8:00 AM 0.00 0.0 M M M
1/24/2018 8:00 AM 0.00 0.0 M M M
1/25/2018 8:00 AM 0.00 0.0 M M M
1/26/2018 8:00 AM 0.00 0.0 M M M
1/27/2018 8:00 AM 0.00 0.0 M M M
1/28/2018 8:00 AM 0.00 0.0 M M M
1/29/2018 8:00 AM 0.00 0.0 M M M
1/30/2018 8:00 AM 0.00 0.0 M M M
1/31/2018 8:00 AM 0.00 0.0 M M M
2/1/2018 8:00 AM 0.00 0.0 M M M
2/2/2018 8:00 AM 0.00 0.0 M M M
2/3/2018 8:00 AM 0.00 0.0 M M M
2/4/2018 8:00 AM 0.00 0.0 M M M
2/5/2018 8:00 AM 0.00 0.0 M M M
2/6/2018 8:00 AM 0.00 0.0 M M M
2/7/2018 8:00 AM T T M M M A very brief dusting of snow around 10:00-11:00.
2/8/2018 8:00 AM 0.00 0.0 M M M
2/9/2018 8:00 AM 0.00 0.0 M M M
2/10/2018 8:00 AM 0.00 0.0 M M M
2/11/2018 8:00 AM 0.00 0.0 M M M
2/15/2018 8:00 AM 0.26 2.6 0.18 3.0 0.18 Light rain 18:00, turn to snow 23:30
2/16/2018 8:00 AM T 0.0 M 0.0 M the tail end of yesterday's pittance
2/17/2018 8:00 AM 0.00 0.0 M M M
2/18/2018 8:00 AM 0.00 0.0 M M M
2/19/2018 8:00 AM 0.00 0.0 M M M
2/20/2018 8:00 AM 0.29 0.2 0.02 0.0 0.02 Mostly rain with some hail (6-9 mm); came in short bursts. Snow depth very inaccurate due to blowing.
2/21/2018 8:00 AM 0.00 0.0 M M M
2/22/2018 8:00 AM 0.35 5.9 0.35 6.0 0.35 Very light snow at obs. time, Started again at 16:45 and gradually got harder into the evening and night.
2/23/2018 8:00 AM 0.00 0.0 M 2.5 0.21 Very light snow in the a.m.; no measurable additional accumulation. Old snow measured in a sunny spot. In the shade, depth was 3.5", 0.33" melted, which makes it a bit _wetter_ (9.4% vs. 8.4%)!
2/24/2018 8:00 AM 0.00 0.0 M 1.0 0.24 Remaining snow is only in shady places; accuracy low.
2/25/2018 8:00 AM 0.00 0.0 M 1.0 0.21 Icy snow only in the shadiest places. Accuracy low.
2/26/2018 8:00 AM 0.00 0.0 M M M A few snow flakes in the morning; no accumulation
2/27/2018 8:00 AM 0.00 0.0 M M M
2/28/2018 8:00 AM 0.00 0.0 M M M
3/1/2018 8:00 AM 0.00 0.0 M M M
3/2/2018 8:00 AM 0.00 0.0 M M M
3/6/2018 8:00 AM 0.00 0.0 M M M
3/7/2018 8:00 AM 0.00 0.0 M M M
3/8/2018 8:00 AM 0.00 0.0 M M M
3/9/2018 8:00 AM 0.00 0.0 M M M
3/10/2018 8:00 AM 0.00 0.0 M M M
3/11/2018 8:00 AM 0.00 0.0 M M M
3/12/2018 8:00 AM 0.10 0.8 0.10 1.0 0.10 A very few flakes during the morning; real snow @ 14:45, continued past midnight. Put rain gauge out at 21:20; it collected nothing. Snow depth very uneven, mostly melted except on surfaces raised from the ground.
3/13/2018 8:00 AM 0.00 0.0 M M M
3/14/2018 8:00 AM 0.00 0.0 M M M
3/15/2018 8:00 AM 0.00 0.0 M M M
3/16/2018 8:00 AM 0.11 0.4 0.02 0.5 0.02 15 min of rain @ 13:00 (T). Dusted intermittently by virga ends for a couple hours. Real snow @ 15:45. Heaver around 16:00, tapered off by 16:45, sun out shortly thereafter. More snow, 17:30-18:15; intermittent light flakes afterward. Stronger @ 19:00.
3/17/2018 8:00 AM 0.00 0.0 M M M
3/18/2018 8:00 AM 0.00 0.0 M M M
3/19/2018 8:00 AM 0.03 T M T M A few flakes @ 10:30. More snurries @ 11:30, got serious, incl more wind, ~13:00. Short spurts ~15:00 and 16:15. Heavy again 18:00 to ~18:30. Lots of wind; snow depth impossible to measure. The 0.03" was frozen in the bottom of the rain gauge.
3/20/2018 8:00 AM 0.00 0.0 M M M
3/21/2018 8:00 AM 0.00 0.0 M M M
3/22/2018 8:00 AM 0.00 0.0 M M M
3/23/2018 8:00 AM 0.00 0.0 M M M
3/27/2018 8:00 AM 0.03 M M M M Very light rain continued late into the night
3/28/2018 8:00 AM 0.24 1.5 0.24 1.5 0.24 Light snow/rain mix 08:30-08:45; intermittent snurries throughout morning. Harder snow 13:45-14:30 and 15:45-?
3/29/2018 8:00 AM 0.00 0.0 M M M
3/30/2018 8:00 AM 0.00 0.0 M M M
3/31/2018 8:00 AM 0.00 0.0 M M M
4/1/2018 8:00 AM 0.00 0.0 M M M
4/2/2018 8:00 AM 0.00 0.0 M M M
4/3/2018 8:00 AM 0.00 0.0 M M M
4/4/2018 8:00 AM 0.00 0.0 M M M
4/5/2018 8:00 AM 0.00 0.0 M M M
4/6/2018 8:00 AM 0.00 0.0 M M M
4/7/2018 8:00 AM 0.00 0.0 M M M
4/8/2018 8:00 AM T 0.0 M M M
4/9/2018 8:00 AM 0.01 M M M M
4/10/2018 8:00 AM 0.00 0.0 M M M
4/11/2018 8:00 AM 0.00 0.0 M M M
4/12/2018 8:00 AM 0.00 0.0 M M M
4/13/2018 8:00 AM 0.00 0.0 M M M Very light snow a bit before observation time.
4/14/2018 8:00 AM 0.00 0.0 M M M
4/15/2018 8:00 AM 0.00 0.0 M M M
4/16/2018 8:00 AM 0.00 0.0 M M M
4/17/2018 8:00 AM 0.00 0.0 M M M
4/18/2018 8:00 AM 0.00 0.0 M M M
4/19/2018 8:00 AM 0.00 0.0 M M M
4/20/2018 8:00 AM 0.09 M 0.07 M 0.07 A little snow/hail on the ground at obs. time, which was also caught in the top of the gauge. Can't tell what the snow depth was, even with a SWAG. There was 0.02" liquid there already; melted snow added 0.07".
4/21/2018 8:00 AM 0.00 0.0 M M M The light snow (08:45 to 08:55) and the light rain following it (to 09:10) didn't amount to anything measurable.
4/22/2018 8:00 AM 0.00 0.0 M M M
4/23/2018 8:00 AM 0.00 0.0 M M M
4/24/2018 8:00 AM 0.00 0.0 M M M
4/25/2018 8:00 AM 0.00 0.0 M M M
4/26/2018 8:00 AM 0.00 0.0 M M M
4/27/2018 8:00 AM 0.00 0.0 M M M
4/28/2018 8:00 AM 0.00 0.0 M M M
5/2/2018 8:00 AM 0.00 0.0 M M M
5/3/2018 8:00 AM 0.01 M M M M Tiny sprinkle @ 16:20. More @ 17:00-17:15.
5/4/2018 8:00 AM 0.00 0.0 M M M
5/5/2018 8:00 AM T M M M M
5/6/2018 8:00 AM 0.00 0.0 M M M
5/7/2018 8:00 AM 0.00 0.0 M M M
5/8/2018 8:00 AM 0.00 0.0 M M M
5/9/2018 8:00 AM 0.00 0.0 M M M
5/18/2018 8:00 AM 0.00 0.0 M M M
5/19/2018 8:00 AM 0.00 0.0 M M M
5/20/2018 8:00 AM 0.00 0.0 M M M
5/21/2018 8:00 AM 0.00 0.0 M M M
5/22/2018 8:00 AM 0.71 M M M M Rained 14:02 to 14:10, 14:27 to 14:33, 15:19 to ~17:00 (0.68"), started again at 20:45, ended later. Hail (pea) @15:44 for ~2 min, mostly rain; more @ 15:51 for ~4 min with less rain.
5/23/2018 8:00 AM T M M M M probably a sprinkle in the early a.m., judging by the grass
5/24/2018 8:00 AM 0.00 0.0 M M M
5/25/2018 8:00 AM 0.00 0.0 M M M
5/26/2018 8:00 AM 0.00 0.0 M M M
5/27/2018 8:00 AM 0.00 0.0 M M M
5/28/2018 8:00 AM 0.00 0.0 M M M
5/29/2018 8:00 AM 0.00 0.0 M M M
5/30/2018 8:00 AM 0.00 0.0 M M M
5/31/2018 8:00 AM 0.00 0.0 M M M
6/1/2018 8:00 AM 0.00 0.0 M M M
6/2/2018 8:00 AM 0.00 0.0 M M M
6/3/2018 8:00 AM 0.00 0.0 M M M
6/4/2018 8:00 AM 0.20 0.0 M M M Sprinkled 08:53 to 9:15, rained 09:55 to 11:12 (0.06"). More in the afternoon (0.16" @ 15:15). More yet in the evening.
6/5/2018 8:00 AM 0.00 0.0 M M M
6/6/2018 8:00 AM 0.00 0.0 M M M
6/7/2018 8:00 AM 0.00 0.0 M M M
6/8/2018 8:00 AM 0.00 0.0 M M M
6/9/2018 8:00 AM 0.00 0.0 M M M
6/10/2018 8:00 AM 0.00 0.0 M M M Tiny amount of "evaporain", 13:32-13:41 and 13:58-14:01. Didn't even amount to a trace. Some thunder.
6/11/2018 8:00 AM 0.00 0.0 M M M
6/12/2018 8:00 AM 0.00 0.0 M M M
6/13/2018 8:00 AM 0.00 0.0 M M M
6/14/2018 8:00 AM T M M M M A light evening sprinkle
6/15/2018 8:00 AM 0.00 0.0 M M M
6/16/2018 8:00 AM 0.05 M M M M Light rain 14:00 to 14:30 (.02"). More in early hours. Drizzling @ observation time.
6/17/2018 8:00 AM 0.57 M M M M Rain continued on/off throughout the day. 0.33 @ 14:45. More in the evening. 0.53" @ 22:30, well after the rain had stopped. A bit more at night.
6/18/2018 8:00 AM 0.15 M M M M
6/19/2018 8:00 AM 0.00 0.0 M M M
6/20/2018 8:00 AM 0.00 0.0 M M M
6/21/2018 8:00 AM 0.00 0.0 M M M
6/22/2018 8:00 AM 0.00 0.0 M M M
6/23/2018 8:00 AM 0.00 0.0 M M M
6/27/2018 8:00 AM 0.00 0.0 M M M
6/28/2018 8:00 AM 0.00 0.0 M M M
6/29/2018 8:00 AM 0.00 0.0 M M M
6/30/2018 8:00 AM 0.00 0.0 M M M
7/1/2018 8:00 AM 0.00 0.0 M M M
7/2/2018 8:00 AM 0.00 0.0 M M M
7/3/2018 8:00 AM 0.07 M M M M On & off during the times indicated, plus a short burst @ 13:50.
7/4/2018 8:00 AM 0.00 0.0 M M M
7/5/2018 8:00 AM 0.00 0.0 M M M
7/6/2018 8:00 AM 0.06 M M M M
7/7/2018 8:00 AM 0.00 0.0 M M M
7/8/2018 8:00 AM 0.00 0.0 M M M
7/9/2018 8:00 AM T 0.0 M M M
7/10/2018 8:00 AM 0.07 M M M M intermittent
7/11/2018 8:00 AM 0.00 0.0 M M M
7/12/2018 8:00 AM 0.03 M M M M
7/13/2018 8:00 AM 0.00 0.0 M M M
7/14/2018 8:00 AM 0.53 M M M M Not much wind.
7/15/2018 8:00 AM 0.00 0.0 M M M
7/16/2018 8:00 AM 0.08 M M M M Thunder at start of rain.
7/17/2018 8:00 AM 0.04 M M M M 0.025" @ 14:20. A bit of light rain later in the pm.
7/18/2018 8:00 AM 0.19 M M M M
7/19/2018 8:00 AM 0.00 0.0 M M M
7/20/2018 8:00 AM 0.00 0.0 M M M
8/23/2018 8:00 AM 0.07 M M M M
8/24/2018 8:00 AM 0.00 0.0 M M M
8/25/2018 8:00 AM 0.04 M M M M
8/26/2018 8:00 AM 0.09 M M M M a few drops @ 15:07; the rest overnight
8/27/2018 8:00 AM 0.20 M M M M Heavy precip on & off for ~1 hr after starting @ 23:13.
8/28/2018 8:00 AM 0.00 0.0 M M M
8/29/2018 8:00 AM 0.00 0.0 M M M
8/30/2018 8:00 AM 0.00 0.0 M M M
8/31/2018 8:00 AM 0.00 0.0 M M M
9/1/2018 8:00 AM 0.26 M M M M
9/2/2018 8:00 AM 0.00 0.0 M M M
9/3/2018 8:00 AM 0.90 M M M M hail @ 17:35 for ~5 min.
9/4/2018 8:00 AM 0.23 M M M M A short mid-morning rain left 0.02"
9/5/2018 8:00 AM 0.62 M M M M Early p.m. rain lasted 40 minutes. More light sprinkles 14:20-14:40; more rain @ 16:30 and later in the evening.
9/6/2018 8:00 AM 0.99 M M M M 14:20: a 2-min flush in the pan! Resume 14:31-14:55. 14:34: hail (rice, hard) for 1 min. More rain later (15:30). 0.58" @ 18:30. Break b/w ~18:15 and 18:50, then more into the night.
9/11/2018 8:00 AM 0.00 0.0 M M M
9/12/2018 8:00 AM 0.00 0.0 M M M
9/13/2018 8:00 AM 0.00 0.0 M M M
9/14/2018 8:00 AM 0.00 0.0 M M M
9/15/2018 8:00 AM 0.00 0.0 M M M
9/16/2018 8:00 AM 0.00 0.0 M M M
9/17/2018 8:00 AM 0.00 0.0 M M M
9/18/2018 8:00 AM 0.00 0.0 M M M
9/19/2018 8:00 AM 0.00 0.0 M M M
9/20/2018 8:00 AM 0.25 M M M M Rain continued intermittently into the night. Light rain @ obs. Time.
9/21/2018 8:00 AM 0.02 M M M M Raining lightly @ obs. Time.
9/22/2018 8:00 AM 0.00 0.0 M M M
9/23/2018 8:00 AM 0.00 0.0 M M M
9/24/2018 8:00 AM 0.00 0.0 M M M
9/25/2018 8:00 AM 0.00 0.0 M M M
9/26/2018 8:00 AM 0.08 M M M M All occurred in the wee hours.
9/27/2018 8:00 AM 0.01 M M M M At 13:40, rain & hard pea hail mix for two minutes. More @ 14:06-14:29; just rain but big widely-spaced drops.
9/28/2018 8:00 AM 0.00 0.0 M M M
9/29/2018 8:00 AM 0.00 0.0 M M M
9/30/2018 8:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/11/2017 10/18/2017 8:00 AM 8 0.00 M M
11/3/2017 11/06/2017 8:00 AM 4 0.00 M M
11/8/2017 11/10/2017 8:00 AM 3 0.02 M M All of this was on 11/8, beginning ~13:30, light rain all p.m., fog in evening and following morning.
11/25/2017 11/28/2017 8:00 AM 4 0.00 M M
12/23/2017 12/26/2017 8:00 AM 4 0.00 M M
1/7/2018 1/09/2018 8:00 AM 3 0.02 M M SINCE 10/6/17, WHICH WAS 95 DAYS AGO, WE HAVE HAD A TOTAL OF 0.13 INCHES OF PRECIPITATION in Los Alamos, according to my data. This little bit fell early Monday, 1/8/18.
2/12/2018 2/14/2018 8:00 AM 3 0.00 0.0 0.00
3/3/2018 3/05/2018 8:00 AM 3 0.00 M M
3/24/2018 3/26/2018 8:00 AM 3 0.00 M M
4/29/2018 5/01/2018 8:00 AM 3 0.00 M M
5/10/2018 5/17/2018 8:00 AM 8 0.00 M M
6/24/2018 6/26/2018 8:00 AM 3 0.00 M M
7/21/2018 8/22/2018 8:00 AM 33 2.96 M M
9/7/2018 9/10/2018 8:00 AM 4 0.21 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
2/19/2018 2:00 PM 3/8" 3/8" 1/4" Pea Size Mixed 120 10min Intermittent False After rain
5/21/2018 3:44 PM 1/4" Pea Size 1/4" Pea Size Rice Hard|White Ice 2 1min Continuous True After rain Same time as smaller hail
5/21/2018 3:51 PM 3/8" 1/4" Pea Size 1/4" Pea Size Hard|White Ice 4 1min Continuous False Same time as rain Same time as smaller hail
9/2/2018 5:35 PM 1/4" Pea Size 1/4" Pea Size Rice Mixed|White Ice 5 1min Continuous True After rain vertical