Station Overview Station Location
Station Number CA-SR-26 Latitude 34.3725
Station Name Hesperia 3.9 SW Longitude -117.34038
County San Bernardino Elevation (ft) 3578



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 0.73 1.25 31 1.25 31 0.00 0 0 7 2 0.0 0 0
Nov 10 0.81 0.69 30 0.69 30 0.00 0 0 3 1 0.0 0 0
Dec 10 1.91 10.12 31 10.12 31 0.00 0 0 11 0 0.0 0 0
Jan 11 3.15 0.60 31 0.60 31 0.00 0 0 2 1 5.5 1 2
Feb 11 3.26 3.44 28 3.44 28 0.00 0 0 6 0 1.3 1 1
March 11 2.04 2.32 31 2.32 31 0.00 0 0 6 0 0.5 1 0
April 11 0.73 0.30 30 0.30 30 0.00 0 0 1 0 0.2 1 0
May 11 0.25 0.05 31 0.05 31 0.00 0 0 2 0 0.0 0 0
June 11 0.08 0.01 30 0.01 30 0.00 0 0 1 0 0.0 0 0
July 11 0.11 1.25 31 1.25 31 0.00 0 0 2 0 0.0 0 0
Aug 11 0.15 0.00 31 0.00 31 0.00 0 0 0 0 0.0 0 0
Sept 11 0.26 0.53 30 0.53 30 0.00 0 0 2 0 0.0 0 0
Water Year Totals: 13.48" 20.56" 365 days 20.56" 365 0.00" 0 days 0 43 days 4 days 7.5" 4 days 3 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 0.04
10/2/2010 0.23
10/3/2010 0.00
10/4/2010 0.00
10/5/2010 T
10/6/2010 0.00
10/7/2010 T
10/8/2010 0.00
10/9/2010 0.00
10/10/2010 0.00
10/11/2010 0.00
10/12/2010 0.00
10/13/2010 0.00
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 0.05
10/20/2010 0.68
10/21/2010 0.13
10/22/2010 0.00
10/23/2010 0.00
10/24/2010 0.00
10/25/2010 0.00
10/26/2010 0.00
10/27/2010 0.00
10/28/2010 0.00
10/29/2010 0.00
10/30/2010 0.04
10/31/2010 0.08
11/1/2010 0.00
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 0.00
11/9/2010 0.00
11/10/2010 0.00
11/11/2010 0.00
11/12/2010 0.00
11/13/2010 0.00
11/14/2010 0.00
11/15/2010 0.00
11/16/2010 0.00
11/17/2010 0.00
11/18/2010 0.00
11/19/2010 0.00
11/20/2010 0.09
11/21/2010 0.34
11/22/2010 0.26
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 T
11/29/2010 0.00
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 0.61
12/7/2010 0.00
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.00
12/11/2010 0.00
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 0.00
12/18/2010 0.05
12/19/2010 0.13
12/20/2010 1.44
12/21/2010 3.72
12/22/2010 2.66
12/23/2010 1.06
12/24/2010 0.00
12/25/2010 0.00
12/26/2010 0.19
12/27/2010 0.00
12/28/2010 0.00
12/29/2010 0.16
12/30/2010 0.09
12/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.00
1/2/2011 0.00
1/3/2011 0.55
1/4/2011 0.05
1/5/2011 0.00
1/6/2011 0.00
1/7/2011 0.00
1/8/2011 0.00
1/9/2011 0.00
1/10/2011 0.00
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 0.00
1/18/2011 0.00
1/19/2011 0.00
1/20/2011 0.00
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 0.00
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 0.00
2/2/2011 0.00
2/3/2011 0.00
2/4/2011 0.00
2/5/2011 0.00
2/6/2011 0.00
2/7/2011 0.00
2/8/2011 0.00
2/9/2011 0.00
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 0.09
2/17/2011 0.13
2/18/2011 0.00
2/19/2011 1.75
2/20/2011 0.31
2/21/2011 0.00
2/22/2011 0.00
2/23/2011 0.00
2/24/2011 0.00
2/25/2011 0.00
2/26/2011 1.15
2/27/2011 0.01
2/28/2011 0.00
3/1/2011 0.00
3/2/2011 0.00
3/3/2011 0.00
3/4/2011 0.00
3/5/2011 0.00
3/6/2011 0.00
3/7/2011 0.00
3/8/2011 0.00
3/9/2011 0.00
3/10/2011 0.00
3/11/2011 0.00
3/12/2011 0.00
3/13/2011 0.00
3/14/2011 0.00
3/15/2011 0.00
3/16/2011 0.00
3/17/2011 0.00
3/18/2011 0.00
3/19/2011 0.01
3/20/2011 0.01
3/21/2011 1.98
3/22/2011 0.06
3/23/2011 0.00
3/24/2011 0.24
3/25/2011 0.02
3/26/2011 0.00
3/27/2011 0.00
3/28/2011 0.00
3/29/2011 0.00
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 0.00
4/5/2011 0.00
4/6/2011 0.00
4/7/2011 0.00
4/8/2011 0.30
4/9/2011 0.00
4/10/2011 0.00
4/11/2011 0.00
4/12/2011 0.00
4/13/2011 0.00
4/14/2011 0.00
4/15/2011 0.00
4/16/2011 0.00
4/17/2011 0.00
4/18/2011 0.00
4/19/2011 0.00
4/20/2011 0.00
4/21/2011 0.00
4/22/2011 0.00
4/23/2011 0.00
4/24/2011 0.00
4/25/2011 0.00
4/26/2011 0.00
4/27/2011 0.00
4/28/2011 0.00
4/29/2011 0.00
4/30/2011 0.00
5/1/2011 0.00
5/2/2011 0.00
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 0.02
5/11/2011 0.00
5/12/2011 0.00
5/13/2011 0.00
5/14/2011 0.00
5/15/2011 0.00
5/16/2011 0.03
5/17/2011 0.00
5/18/2011 0.00
5/19/2011 0.00
5/20/2011 0.00
5/21/2011 0.00
5/22/2011 0.00
5/23/2011 0.00
5/24/2011 0.00
5/25/2011 0.00
5/26/2011 0.00
5/27/2011 0.00
5/28/2011 0.00
5/29/2011 0.00
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 0.01
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.00
6/10/2011 0.00
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 0.00
6/18/2011 0.00
6/19/2011 0.00
6/20/2011 0.00
6/21/2011 0.00
6/22/2011 0.00
6/23/2011 0.00
6/24/2011 0.00
6/25/2011 0.00
6/26/2011 0.00
6/27/2011 0.00
6/28/2011 0.00
6/29/2011 0.00
6/30/2011 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.00
7/2/2011 0.00
7/3/2011 0.00
7/4/2011 0.00
7/5/2011 0.27
7/6/2011 0.00
7/7/2011 0.00
7/8/2011 0.00
7/9/2011 0.00
7/10/2011 0.00
7/11/2011 0.00
7/12/2011 0.00
7/13/2011 0.00
7/14/2011 0.00
7/15/2011 0.00
7/16/2011 0.00
7/17/2011 0.00
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 0.00
7/21/2011 0.00
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 0.00
7/28/2011 0.00
7/29/2011 0.00
7/30/2011 0.00
7/31/2011 0.98
8/1/2011 0.00
8/2/2011 0.00
8/3/2011 0.00
8/4/2011 0.00
8/5/2011 0.00
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 0.00
8/12/2011 0.00
8/13/2011 0.00
8/14/2011 0.00
8/15/2011 0.00
8/16/2011 0.00
8/17/2011 0.00
8/18/2011 0.00
8/19/2011 0.00
8/20/2011 0.00
8/21/2011 0.00
8/22/2011 0.00
8/23/2011 0.00
8/24/2011 0.00
8/25/2011 0.00
8/26/2011 0.00
8/27/2011 0.00
8/28/2011 0.00
8/29/2011 0.00
8/30/2011 0.00
8/31/2011 0.00
9/1/2011 0.00
9/2/2011 0.00
9/3/2011 0.00
9/4/2011 0.00
9/5/2011 0.00
9/6/2011 0.01
9/7/2011 0.00
9/8/2011 0.00
9/9/2011 0.00
9/10/2011 0.00
9/11/2011 0.00
9/12/2011 0.00
9/13/2011 0.00
9/14/2011 0.52
9/15/2011 0.00
9/16/2011 0.00
9/17/2011 0.00
9/18/2011 0.00
9/19/2011 0.00
9/20/2011 0.00
9/21/2011 0.00
9/22/2011 0.00
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 6:30 AM 0.04 M M M M Rainfall occurred from a weak thundercell. Rainfall rate was light. 0.03 occurred on 09/30/10 and 0.01 occurred on 10/1/10. (This ends a 124 day stretch of no measurable precipitation)
10/2/2010 7:00 AM 0.23 M M M M UPPER LEVEL DISTURBANCE TRIGGERED WIDESPREAD AREA THUNDERSTORMS. HEAVY RAINFALL. 0.16in. IN 20 MIN. STREET FLOODING THROUGHOUT HESPERIA. RAINFALL OCCURRED ON 10/01/10.
10/3/2010 7:00 AM 0.00 0.0 M M M
10/4/2010 7:00 AM 0.00 0.0 M M M
10/5/2010 7:00 AM T M M M M Light afternoon drizzle shower from a thick marine layer spill over on 10/4/10.
10/6/2010 7:00 AM 0.00 0.0 M M M
10/7/2010 7:00 AM T M M M M Brief morning drizzle shower on 10/6/10.
10/8/2010 7:00 AM 0.00 0.0 M M M
10/9/2010 7:00 AM 0.00 0.0 M M M
10/10/2010 7:00 AM 0.00 0.0 M M M
10/11/2010 7:00 AM 0.00 0.0 M M M
10/12/2010 7:00 AM 0.00 0.0 M M M
10/13/2010 7:00 AM 0.00 0.0 M M M
10/14/2010 7:00 AM 0.00 0.0 M M M
10/15/2010 7:00 AM 0.00 0.0 M M M
10/16/2010 7:00 AM 0.00 0.0 M M M
10/17/2010 7:00 AM 0.00 0.0 M M M
10/18/2010 7:00 AM 0.00 0.0 M M M
10/19/2010 7:00 AM 0.05 M M M M Cutoff low responsible for scattered area showers/thunderstorms. Showers moved through at a very fast rate so not seen any flooding although rain was briefly heavy. 10 min. shower of 0.01 on 10/18/10. 10 min. shower of 0.04 on 10/19/10.
10/20/2010 7:00 AM 0.68 M M M M Numerous showers and thunderstorms. The evening round of thunderstorms were classified severe due to intense lightning,hail and very heavy rain. Due to the high speed movement of the showers flooding was minimal. Rainfall was not continuous through the day. There were 8 periods of showers lasting 10-20 min.with around 0.10 in. accumulation each on average.
10/21/2010 7:00 AM 0.13 M M M M Wrap around moisture from departing cutoff low over Mexicali delivered a light to briefly heavy am rain shower lasting approx. 1 hour.
10/22/2010 7:00 AM 0.00 0.0 M M M
10/23/2010 7:00 AM 0.00 0.0 M M M
10/24/2010 7:00 AM 0.00 0.0 M M M
10/25/2010 7:00 AM 0.00 0.0 M M M
10/26/2010 7:00 AM 0.00 0.0 M M M
10/27/2010 7:00 AM 0.00 0.0 M M M
10/28/2010 7:00 AM 0.00 0.0 M M M
10/29/2010 7:00 AM 0.00 0.0 M M M
10/30/2010 7:00 AM 0.04 M M M M Weak cold front moving through. Light rainfall. Rain began 6:10 am on 10/30 and still falling as of this report.
10/31/2010 7:00 AM 0.08 M M M M Light rainfall from a weak cold front from between 7-8:20am on 10/30/10. A long over night period of very high humidity resulted in very heavy dew on the morning of 10/31 which was enough to measure .01 in the gauge but not counted in this report.
11/1/2010 7:00 AM 0.00 0.0 M M M
11/2/2010 7:00 AM 0.00 0.0 M M M
11/3/2010 7:00 AM 0.00 0.0 M M M
11/4/2010 7:00 AM 0.00 0.0 M M M
11/5/2010 7:00 AM 0.00 0.0 M M M
11/6/2010 7:00 AM 0.00 0.0 M M M
11/7/2010 7:00 AM 0.00 0.0 M M M
11/8/2010 7:00 AM 0.00 0.0 M M M
11/9/2010 7:00 AM 0.00 0.0 M M M
11/10/2010 7:00 AM 0.00 0.0 M M M
11/11/2010 7:00 AM 0.00 0.0 M M M
11/12/2010 7:00 AM 0.00 0.0 M M M
11/13/2010 7:00 AM 0.00 0.0 M M M
11/14/2010 7:00 AM 0.00 0.0 M M M
11/15/2010 7:00 AM 0.00 0.0 M M M
11/16/2010 7:00 AM 0.00 0.0 M M M
11/17/2010 7:00 AM 0.00 0.0 M M M
11/18/2010 7:00 AM 0.00 0.0 M M M
11/19/2010 7:00 AM 0.00 0.0 M M M
11/20/2010 7:00 AM 0.09 M M M M Drizzle to light rain from spillover moisture on 11/20/10. Very light rain rates.
11/21/2010 7:00 AM 0.34 M M M M Light rain showers off and on during the morning hours and briefly late in the evening on 11/20/10. Second wave to the storm continues with light rain beginning at 5 am on 11/21/10. Light rainfall rates.
11/22/2010 7:00 AM 0.26 M M M M Light to moderate rainfall from the second frontal wave during the morning hours on 11/21/10. Temp got as low as 38F during the rain event and some mixing of snow flakes during the heavier showers was observed. Rain rate at times up to 0.25 in. hr.
11/23/2010 7:00 AM 0.00 0.0 M M M
11/24/2010 7:00 AM 0.00 0.0 M M M
11/25/2010 7:00 AM 0.00 0.0 M M M
11/26/2010 7:00 AM 0.00 0.0 M M M
11/27/2010 7:00 AM 0.00 0.0 M M M
11/28/2010 7:00 AM T M M M M
11/29/2010 7:00 AM 0.00 0.0 M M M
11/30/2010 7:00 AM 0.00 0.0 M M M
12/1/2010 7:00 AM 0.00 0.0 M M M
12/2/2010 7:00 AM 0.00 0.0 M M M
12/3/2010 7:00 AM 0.00 0.0 M M M
12/4/2010 7:00 AM 0.00 0.0 M M M
12/5/2010 7:00 AM 0.00 0.0 M M M
12/6/2010 7:00 AM 0.61 M M M M Subtropical moisture combined with extra lift resulted in a much heavier storm than predicted. Rainfall was occasionally heavy but mostly light to moderate during the event. 0.43 in. fell on 12/05 and 0.18 in. on 12/06.
12/7/2010 7:00 AM 0.00 0.0 M M M
12/8/2010 7:00 AM 0.00 0.0 M M M
12/9/2010 7:00 AM 0.00 0.0 M M M
12/10/2010 7:00 AM 0.00 0.0 M M M
12/11/2010 7:00 AM 0.00 0.0 M M M
12/12/2010 7:00 AM 0.00 0.0 M M M
12/13/2010 7:00 AM 0.00 0.0 M M M
12/14/2010 7:00 AM 0.00 0.0 M M M
12/15/2010 7:00 AM 0.00 0.0 M M M
12/16/2010 7:00 AM 0.01 M M M M
12/17/2010 7:00 AM 0.00 0.0 M M M
12/18/2010 7:00 AM 0.05 M M M M Big storm not doing too much here so far. Unfavorable 700mb wind profile and low pressure center way up off the coast of Seattle has kept the high desert region pretty much shut off from precip.More of a strong wind event than anything. Very light showers in the early am hours. 0.01 fell 8:30 pm on 12/17.
12/19/2010 7:00 AM 0.13 M M M M Just occasional light rain. The steadiest period was from 8am - noon on 12/18. 0.11 fell on 12/18 and just 0.02 fell on 12/19 since midnight as blow off moisture from the mountains. Rain shadowing has been dominant as parameters have not favorable for much rain here. Mostly a strong wing event.
12/20/2010 7:00 AM 1.44 M M M M Steady long duration light to moderate rain event since 10:30 am on 12/19. Had an impressive wind gust of 62 mph at 8am on 12/19 during a powerful 30 min wind storm. 1.12 fell on 12/19 and 0.32 has fallen since midnight and continues as of this report.
12/21/2010 7:00 AM 3.72 M M M M Prolonged period of moderate to very heavy rainfall rates. The rain has been non-stop without any breaks during the entire 24 hour period. 3.10 fell on 12/20 and 0.62 on 12/21 and currently still raining. Flooding is quite heavy throughout Hesperia.
12/22/2010 7:00 AM 2.66 M M M M Continued steady moderate to heavy rainfall. There was a bit of a let up during the afternoon of 12/21 but rain became intense shortly after midnight and has remained that way since. 0.83 fell on 12/21 and 1.83 on 12/22.
12/23/2010 7:00 AM 1.06 M M M M Moderate to heavy rain during the am of 12/22 then a couple hour break around noon followed by another round of heavy precip with the cold core of the system. All the precip from this monster week long storm finally ends around 5pm 12/22. How much did this storm all add up to?..9.07"! No measurable precip on 12/23.
12/24/2010 7:00 AM 0.00 0.0 M M M
12/25/2010 7:00 AM 0.00 0.0 M M M
12/26/2010 7:00 AM 0.19 M M M M Fast moving cold front delivered a brief steady period of moderate rainfall. After the front passage occasional showers off and on through the early am of 12/26. 0.13" fell on 12/25 and 0.06" on 12/26.
12/27/2010 7:00 AM 0.00 0.0 M M M
12/28/2010 7:00 AM 0.00 0.0 M M M
12/29/2010 7:00 AM 0.16 M M M M Steady light to moderate rainfall since around 5am. NW winds aloft driving the front through quickly minimizing and lowering rainfall intensities as drier air is working into the 700mb layer and dynamics are lacking. Strong SW winds developed ahead of the arrival of the front with a max gust of 52 mph around 1am.
12/30/2010 7:00 AM 0.09 M M M M Light rain during the am of 12/30 and an afternoon shower as well.
12/31/2010 7:00 AM 0.00 0.0 M M M
1/1/2011 7:00 AM 0.00 0.0 M M M
1/2/2011 7:00 AM 0.00 0.0 M M M
1/3/2011 8:00 AM 0.55 5.5 M 5.0 M Periods of light to moderate snowfall beginning around 4pm on 1/02 continuing through the night. Heaviest snowfall occurring between 6 and 8am on 1/03 at the time of this report. Temperatures during the event mostly in the upper 20's.
1/4/2011 7:00 AM 0.05 M M 2.0 M Snow showers up till around noon on 1/03. Slightly warmer temps kept the snow from accumulating and melting reduced the snow depth considerably during that afternoon.
1/5/2011 7:00 AM 0.00 0.0 M M M
1/6/2011 7:00 AM 0.00 0.0 M M M
1/7/2011 7:00 AM 0.00 0.0 M M M
1/8/2011 7:00 AM 0.00 0.0 M M M
1/9/2011 7:00 AM 0.00 0.0 M M M
1/10/2011 7:00 AM 0.00 0.0 M M M
1/11/2011 7:00 AM 0.00 0.0 M M M
1/12/2011 7:00 AM 0.00 0.0 M M M
1/13/2011 7:00 AM 0.00 0.0 M M M
1/14/2011 7:00 AM 0.00 0.0 M M M
1/15/2011 7:00 AM 0.00 0.0 M M M
1/16/2011 7:00 AM 0.00 0.0 M M M
1/17/2011 7:00 AM 0.00 0.0 M M M
1/18/2011 7:00 AM 0.00 0.0 M M M
1/19/2011 7:00 AM 0.00 0.0 M M M
1/20/2011 7:00 AM 0.00 0.0 M M M
1/21/2011 7:00 AM 0.00 0.0 M M M
1/22/2011 7:00 AM 0.00 0.0 M M M
1/23/2011 7:00 AM 0.00 0.0 M M M
1/24/2011 7:00 AM 0.00 0.0 M M M
1/25/2011 7:00 AM 0.00 0.0 M M M
1/26/2011 7:00 AM 0.00 0.0 M M M
1/27/2011 7:00 AM 0.00 0.0 M M M
1/28/2011 7:00 AM 0.00 0.0 M M M
1/29/2011 7:00 AM 0.00 0.0 M M M
1/30/2011 7:00 AM 0.00 0.0 M M M
1/31/2011 7:00 AM T M M M M
2/1/2011 7:00 AM 0.00 0.0 M M M
2/2/2011 7:00 AM 0.00 0.0 M M M
2/3/2011 7:00 AM 0.00 0.0 M M M
2/4/2011 7:00 AM 0.00 0.0 M M M
2/5/2011 7:00 AM 0.00 0.0 M M M
2/6/2011 7:00 AM 0.00 0.0 M M M
2/7/2011 7:00 AM 0.00 0.0 M M M
2/8/2011 7:00 AM 0.00 0.0 M M M
2/9/2011 7:00 AM 0.00 0.0 M M M
2/10/2011 7:00 AM 0.00 0.0 M M M
2/11/2011 7:00 AM 0.00 0.0 M M M
2/12/2011 7:00 AM 0.00 0.0 M M M
2/13/2011 7:00 AM 0.00 0.0 M M M
2/14/2011 7:00 AM 0.00 0.0 M M M
2/15/2011 7:00 AM 0.00 0.0 M M M
2/16/2011 7:00 AM 0.09 M M M M Steady drizzle to light rain during the early am hours of 2/16. Precip was blow off moisture from the SBD Mtns. Wind gusts to 50 mph.
2/17/2011 7:00 AM 0.13 M M M M Steady heavy drizzle to light rain from a weak front during the am hours of 2/16.
2/18/2011 7:00 AM 0.00 0.0 M M M
2/19/2011 7:00 AM 1.75 M M M M Moderate to heavy rain event. Brief rainfall rates of 1" per/hr during the heaviest part of the storm. 1.41" fell on 2/18 and 0.34" on 2/19.
2/20/2011 7:00 AM 0.31 1.3 0.31 1.0 M Light to moderate snow showers beginning 2pm on 2/19 lasting well into the evening.
2/21/2011 7:00 AM 0.00 0.0 M M M
2/22/2011 7:00 AM 0.00 0.0 M M M
2/23/2011 7:00 AM 0.00 0.0 M M M
2/24/2011 7:00 AM 0.00 0.0 M M M
2/25/2011 7:00 AM 0.00 0.0 M M M
2/26/2011 7:00 AM 1.15 T M M M Decent cold front with good dynamics brought steady moderate rains in the overnight hours. Some mixing of snow at times during the heavier showers turning to all snow around 5am 2/26. Ground to wet and temp only getting down to 33 to accumulate anything measurable. 0.36" fell on 2/25 and 0.79" fell on 2/26.
2/27/2011 7:00 AM 0.01 M M M M
2/28/2011 7:00 AM 0.00 0.0 M M M
3/1/2011 7:00 AM 0.00 0.0 M M M
3/2/2011 7:00 AM 0.00 0.0 M M M
3/3/2011 7:00 AM 0.00 0.0 M M M
3/4/2011 7:00 AM 0.00 0.0 M M M
3/5/2011 7:00 AM 0.00 0.0 M M M
3/6/2011 7:00 AM 0.00 0.0 M M M
3/7/2011 7:00 AM 0.00 0.0 M M M
3/8/2011 7:00 AM 0.00 0.0 M M M
3/9/2011 7:00 AM 0.00 0.0 M M M
3/10/2011 7:00 AM 0.00 0.0 M M M
3/11/2011 7:00 AM 0.00 0.0 M M M
3/12/2011 7:00 AM 0.00 0.0 M M M
3/13/2011 7:00 AM 0.00 0.0 M M M
3/14/2011 7:00 AM 0.00 0.0 M M M
3/15/2011 7:00 AM 0.00 0.0 M M M
3/16/2011 7:00 AM 0.00 0.0 M M M
3/17/2011 7:00 AM 0.00 0.0 M M M
3/18/2011 7:00 AM 0.00 0.0 M M M
3/19/2011 7:00 AM 0.01 M M M M
3/20/2011 7:00 AM 0.01 M M M M
3/21/2011 7:00 AM 1.98 T M M M Powerful cold front with moderate to occasional heavy rain. 1.73in. on 3/20 and 0.25in. on 3/21. Strongest wind event of the season to date with gust to 65 mph. and long periods of sustained winds at 40 mph. Also a dusting of snow at the tail end of the storm.
3/22/2011 7:00 AM 0.06 M M M M Cold afternoon snow and rain mix.
3/23/2011 7:00 AM 0.00 0.0 M M M
3/24/2011 7:00 AM 0.24 0.5 M M M Light to moderate precip event. Precipitation fell mostly in the form of snow but ground temps too warm for much accumulation.
3/25/2011 7:00 AM 0.02 M M M M
3/26/2011 7:00 AM 0.00 0.0 M M M
3/27/2011 7:00 AM 0.00 0.0 M M M
3/28/2011 7:00 AM 0.00 0.0 M M M
3/29/2011 7:00 AM 0.00 0.0 M M M
3/30/2011 7:00 AM 0.00 0.0 M M M
3/31/2011 7:00 AM 0.00 0.0 M M M
4/1/2011 7:00 AM 0.00 0.0 M M M
4/2/2011 7:00 AM 0.00 0.0 M M M
4/3/2011 7:00 AM 0.00 0.0 M M M
4/4/2011 7:00 AM 0.00 0.0 M M M
4/5/2011 7:00 AM 0.00 0.0 M M M
4/6/2011 7:00 AM 0.00 0.0 M M M
4/7/2011 7:00 AM 0.00 0.0 M M M
4/8/2011 7:00 AM 0.30 0.2 M M M
4/9/2011 7:00 AM 0.00 0.0 M M M
4/10/2011 7:00 AM 0.00 0.0 M M M
4/11/2011 7:00 AM 0.00 0.0 M M M
4/12/2011 7:00 AM 0.00 0.0 M M M
4/13/2011 7:00 AM 0.00 0.0 M M M
4/14/2011 7:00 AM 0.00 0.0 M M M
4/15/2011 7:00 AM 0.00 0.0 M M M
4/16/2011 7:00 AM 0.00 0.0 M M M
4/17/2011 7:00 AM 0.00 0.0 M M M
4/18/2011 7:00 AM 0.00 0.0 M M M
4/19/2011 7:00 AM 0.00 0.0 M M M
4/20/2011 7:00 AM 0.00 0.0 M M M
4/21/2011 7:00 AM 0.00 0.0 M M M
4/22/2011 7:00 AM 0.00 0.0 M M M
4/23/2011 7:00 AM 0.00 0.0 M M M
4/24/2011 7:00 AM 0.00 0.0 M M M
4/25/2011 7:00 AM 0.00 0.0 M M M
4/26/2011 7:00 AM 0.00 0.0 M M M
4/27/2011 7:00 AM 0.00 0.0 M M M
4/28/2011 7:00 AM 0.00 0.0 M M M
4/29/2011 7:00 AM 0.00 0.0 M M M
4/30/2011 7:00 AM 0.00 0.0 M M M
5/1/2011 7:00 AM 0.00 0.0 M M M
5/2/2011 7:00 AM 0.00 0.0 M M M
5/3/2011 7:00 AM 0.00 0.0 M M M
5/4/2011 7:00 AM 0.00 0.0 M M M
5/5/2011 7:00 AM 0.00 0.0 M M M
5/6/2011 7:00 AM 0.00 0.0 M M M
5/7/2011 7:00 AM 0.00 0.0 M M M
5/8/2011 7:00 AM 0.00 0.0 M M M
5/9/2011 7:00 AM 0.00 0.0 M M M
5/10/2011 7:00 AM 0.02 M M M M
5/11/2011 7:00 AM 0.00 0.0 M M M
5/12/2011 7:00 AM 0.00 0.0 M M M
5/13/2011 7:00 AM 0.00 0.0 M M M
5/14/2011 7:00 AM 0.00 0.0 M M M
5/15/2011 7:00 AM 0.00 0.0 M M M
5/16/2011 7:00 AM 0.03 M M M M Mist/drizzle with occasional light showers from around 6am to noon on 5/15.
5/17/2011 7:00 AM 0.00 0.0 M M M
5/18/2011 7:00 AM 0.00 0.0 M M M
5/19/2011 7:00 AM 0.00 0.0 M M M
5/20/2011 7:00 AM 0.00 0.0 M M M
5/21/2011 7:00 AM 0.00 0.0 M M M
5/22/2011 7:00 AM 0.00 0.0 M M M
5/23/2011 7:00 AM 0.00 0.0 M M M
5/24/2011 7:00 AM 0.00 0.0 M M M
5/25/2011 7:00 AM 0.00 0.0 M M M
5/26/2011 7:00 AM 0.00 0.0 M M M
5/27/2011 7:00 AM 0.00 0.0 M M M
5/28/2011 7:00 AM 0.00 0.0 M M M
5/29/2011 7:00 AM 0.00 0.0 M M M
5/30/2011 7:00 AM 0.00 0.0 M M M
5/31/2011 7:00 AM 0.00 0.0 M M M
6/1/2011 7:00 AM 0.00 0.0 M M M
6/2/2011 7:00 AM 0.00 0.0 M M M
6/3/2011 7:00 AM 0.00 0.0 M M M
6/4/2011 7:00 AM 0.00 0.0 M M M
6/5/2011 7:00 AM 0.00 0.0 M M M
6/6/2011 7:00 AM 0.01 0.0 M M M
6/7/2011 7:00 AM 0.00 0.0 M M M
6/8/2011 7:00 AM 0.00 0.0 M M M
6/9/2011 7:00 AM 0.00 0.0 M M M
6/10/2011 7:00 AM 0.00 0.0 M M M
6/11/2011 7:00 AM 0.00 0.0 M M M
6/12/2011 7:00 AM 0.00 0.0 M M M
6/13/2011 7:00 AM 0.00 0.0 M M M
6/14/2011 7:00 AM 0.00 0.0 M M M
6/15/2011 7:00 AM 0.00 0.0 M M M
6/16/2011 7:00 AM 0.00 0.0 M M M
6/17/2011 7:00 AM 0.00 0.0 M M M
6/18/2011 7:00 AM 0.00 0.0 M M M
6/19/2011 7:00 AM 0.00 0.0 M M M
6/20/2011 7:00 AM 0.00 0.0 M M M
6/21/2011 7:00 AM 0.00 0.0 M M M
6/22/2011 7:00 AM 0.00 0.0 M M M
6/23/2011 7:00 AM 0.00 0.0 M M M
6/24/2011 7:00 AM 0.00 0.0 M M M
6/25/2011 7:00 AM 0.00 0.0 M M M
6/26/2011 7:00 AM 0.00 0.0 M M M
6/27/2011 7:00 AM 0.00 0.0 M M M
6/28/2011 7:00 AM 0.00 0.0 M M M
6/29/2011 7:00 AM 0.00 0.0 M M M
6/30/2011 7:00 AM 0.00 0.0 M M M
7/1/2011 7:00 AM 0.00 0.0 M M M
7/2/2011 7:00 AM 0.00 0.0 M M M
7/3/2011 7:00 AM 0.00 0.0 M M M
7/4/2011 7:00 AM 0.00 0.0 M M M
7/5/2011 7:00 AM 0.27 M M M M Thundershower during the afternoon of 7/4.
7/6/2011 7:00 AM 0.00 0.0 M M M
7/7/2011 7:00 AM 0.00 0.0 M M M
7/8/2011 7:00 AM 0.00 0.0 M M M
7/9/2011 7:00 AM 0.00 0.0 M M M
7/10/2011 7:00 AM 0.00 0.0 M M M
7/11/2011 7:00 AM 0.00 0.0 M M M
7/12/2011 7:00 AM 0.00 0.0 M M M
7/13/2011 7:00 AM 0.00 0.0 M M M
7/14/2011 7:00 AM 0.00 0.0 M M M
7/15/2011 7:00 AM 0.00 0.0 M M M
7/16/2011 7:00 AM 0.00 0.0 M M M
7/17/2011 7:00 AM 0.00 0.0 M M M
7/18/2011 7:00 AM 0.00 0.0 M M M
7/19/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.00 0.0 M M M
7/21/2011 7:00 AM 0.00 0.0 M M M
7/22/2011 7:00 AM 0.00 0.0 M M M
7/23/2011 7:00 AM 0.00 0.0 M M M
7/24/2011 7:00 AM 0.00 0.0 M M M
7/25/2011 7:00 AM 0.00 0.0 M M M
7/26/2011 7:00 AM 0.00 0.0 M M M
7/27/2011 7:00 AM 0.00 0.0 M M M
7/28/2011 7:00 AM 0.00 0.0 M M M
7/29/2011 7:00 AM 0.00 0.0 M M M
7/30/2011 7:00 AM 0.00 0.0 M M M
7/31/2011 7:00 AM 0.98 0.0 M M M
8/1/2011 7:00 AM 0.00 0.0 M M M
8/2/2011 7:00 AM 0.00 0.0 M M M
8/3/2011 7:00 AM 0.00 0.0 M M M
8/4/2011 7:00 AM 0.00 0.0 M M M
8/5/2011 7:00 AM 0.00 0.0 M M M
8/6/2011 7:00 AM 0.00 0.0 M M M
8/7/2011 7:00 AM 0.00 0.0 M M M
8/8/2011 7:00 AM 0.00 0.0 M M M
8/9/2011 7:00 AM 0.00 0.0 M M M
8/10/2011 7:00 AM 0.00 0.0 M M M
8/11/2011 7:00 AM 0.00 0.0 M M M
8/12/2011 7:00 AM 0.00 0.0 M M M
8/13/2011 7:00 AM 0.00 0.0 M M M
8/14/2011 7:00 AM 0.00 0.0 M M M
8/15/2011 7:00 AM 0.00 0.0 M M M
8/16/2011 7:00 AM 0.00 0.0 M M M
8/17/2011 7:00 AM 0.00 0.0 M M M
8/18/2011 7:00 AM 0.00 0.0 M M M
8/19/2011 7:00 AM 0.00 0.0 M M M
8/20/2011 7:00 AM 0.00 0.0 M M M
8/21/2011 7:00 AM 0.00 0.0 M M M
8/22/2011 7:00 AM 0.00 0.0 M M M
8/23/2011 7:00 AM 0.00 0.0 M M M
8/24/2011 7:00 AM 0.00 0.0 M M M
8/25/2011 7:00 AM 0.00 0.0 M M M
8/26/2011 7:00 AM 0.00 0.0 M M M
8/27/2011 7:00 AM 0.00 0.0 M M M
8/28/2011 7:00 AM 0.00 0.0 M M M
8/29/2011 7:00 AM 0.00 0.0 M M M
8/30/2011 7:00 AM 0.00 0.0 M M M
8/31/2011 7:00 AM 0.00 0.0 M M M
9/1/2011 7:00 AM 0.00 0.0 M M M
9/2/2011 7:00 AM 0.00 0.0 M M M
9/3/2011 7:00 AM 0.00 0.0 M M M
9/4/2011 7:00 AM 0.00 0.0 M M M
9/5/2011 7:00 AM 0.00 0.0 M M M
9/6/2011 7:00 AM 0.01 M M M M
9/7/2011 7:00 AM 0.00 0.0 M M M
9/8/2011 7:00 AM 0.00 0.0 M M M
9/9/2011 7:00 AM 0.00 0.0 M M M
9/10/2011 7:00 AM 0.00 0.0 M M M
9/11/2011 7:00 AM 0.00 0.0 M M M
9/12/2011 7:00 AM 0.00 0.0 M M M
9/13/2011 7:00 AM 0.00 0.0 M M M
9/14/2011 7:00 AM 0.52 M M M M Upper level low pressure system triggered heavy thunderstorms over Wrightwood, Lake Arrowhead and southern Hesperia regions. Worst of the storm occured in the eastern Mojave Desert region where a massive MCS developed. Precipitation occured in two distinct thunderstorms on the 13th. First one from 6:50 to 7:20am resulting in 0.11". Second and much more powerful one occurred from 2:10 to 3:00pm. 0.25" fell in 10 min. during the peak of the event. 0.41" for the total.
9/15/2011 7:00 AM 0.00 0.0 M M M
9/16/2011 7:00 AM 0.00 0.0 M M M
9/17/2011 7:00 AM 0.00 0.0 M M M
9/18/2011 7:00 AM 0.00 0.0 M M M
9/19/2011 7:00 AM 0.00 0.0 M M M
9/20/2011 7:00 AM 0.00 0.0 M M M
9/21/2011 7:00 AM 0.00 0.0 M M M
9/22/2011 7:00 AM 0.00 0.0 M M M
9/23/2011 7:00 AM 0.00 0.0 M M M
9/24/2011 7:00 AM 0.00 0.0 M M M
9/25/2011 7:00 AM 0.00 0.0 M M M
9/26/2011 7:00 AM 0.00 0.0 M M M
9/27/2011 7:00 AM 0.00 0.0 M M M
9/28/2011 7:00 AM 0.00 0.0 M M M
9/29/2011 7:00 AM 0.00 0.0 M M M
9/30/2011 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



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