Station Overview Station Location
Station Number CO-MZ-13 Latitude 37.37581
Station Name Mancos 3.8 WNW Longitude -108.35245
County Montezuma Elevation (ft) 7050



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 09 1.57 0.64 31 0.64 17 0.00 14 1 6 3 3.7 2 3
Nov 09 1.60 0.82 30 0.82 23 0.00 7 0 2 1 3.2 2 2
Dec 09 1.45 2.26 30 0.32 11 1.94 19 2 3 0 3.9 3 9
Jan 10 1.57 2.41 29 2.39 23 0.02 6 1 8 1 30.8 8 20
Feb 10 1.48 1.72 28 1.66 26 0.06 2 1 9 2 27.1 9 26
March 10 1.89 1.38 31 1.38 21 0.00 10 0 10 3 14.7 8 21
April 10 1.36 1.08 29 0.59 22 0.49 7 1 5 4 6.6 4 2
May 10 1.07 0.27 28 0.27 28 0.00 0 0 6 3 1.5 3 1
June 10 0.65 0.22 25 0.22 25 0.00 0 0 2 2 0.0 0 0
July 10 1.38 1.77 30 1.77 30 0.00 0 0 10 6 0.0 0 0
Aug 10 1.89 2.79 30 2.00 27 0.79 3 1 14 2 0.0 0 0
Sept 10 2.08 1.23 24 1.23 24 0.00 0 0 4 1 0.0 0 0
Water Year Totals: 17.99" 16.59" 345 days 13.29" 277 3.30" 68 days 7 79 days 28 days 91.5" 39 days 84 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
10/1/2009 0.00
10/2/2009 0.00
10/3/2009 0.00
10/4/2009 0.02
10/5/2009 T
10/6/2009 T
10/7/2009 0.01
10/8/2009 0.01
10/9/2009 0.00
10/10/2009 0.00
10/11/2009 0.00
10/12/2009 0.00
10/13/2009 0.33
10/14/2009 **
10/15/2009 **
10/16/2009 **
10/17/2009 **
10/18/2009 **
10/19/2009 **
10/20/2009 **
10/21/2009 **
10/22/2009 **
10/23/2009 **
10/24/2009 **
10/25/2009 **
10/26/2009 **
10/27/2009 0.00
10/28/2009 0.20
10/29/2009 0.07
10/30/2009 T
10/31/2009 0.00
11/1/2009 0.00
11/2/2009 0.00
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.00
11/12/2009 0.00
11/13/2009 T
11/14/2009 0.54
11/15/2009 0.28
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 0.00
11/20/2009 0.00
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 **
11/25/2009 **
11/26/2009 **
11/27/2009 **
11/28/2009 **
11/29/2009 **
11/30/2009 **
12/1/2009 **
12/2/2009 **
12/3/2009 **
12/4/2009 **
12/5/2009 **
12/6/2009 **
12/7/2009 **
12/8/2009 **
12/9/2009 1.40
12/10/2009
12/11/2009 0.00
12/12/2009 0.03
12/13/2009 0.10
12/14/2009 0.19
12/15/2009 0.00
12/16/2009 0.00
12/17/2009 0.00
12/18/2009 0.00
12/19/2009 0.00
12/20/2009 0.00
12/21/2009 0.00
12/22/2009 **
12/23/2009 **
12/24/2009 **
12/25/2009 **
12/26/2009 **
12/27/2009 **
12/28/2009 **
12/29/2009 **
12/30/2009 **
12/31/2009 0.54
Day of YearDaily PrcpMultiday Prcp
1/1/2010
1/2/2010 0.00
1/3/2010 0.00
1/4/2010 0.00
1/5/2010 0.00
1/6/2010 0.00
1/7/2010 0.00
1/8/2010 0.00
1/9/2010 0.00
1/10/2010 0.00
1/11/2010 0.00
1/12/2010
1/13/2010 **
1/14/2010 **
1/15/2010 **
1/16/2010 **
1/17/2010 **
1/18/2010 0.02
1/19/2010 0.45
1/20/2010 0.36
1/21/2010 0.27
1/22/2010 0.66
1/23/2010 0.51
1/24/2010 0.06
1/25/2010 0.00
1/26/2010 0.00
1/27/2010 0.00
1/28/2010 0.05
1/29/2010 0.03
1/30/2010 T
1/31/2010 0.00
2/1/2010 0.00
2/2/2010 0.00
2/3/2010 0.00
2/4/2010 0.05
2/5/2010 0.00
2/6/2010 0.01
2/7/2010 0.37
2/8/2010 0.35
2/9/2010 T
2/10/2010 **
2/11/2010 0.06
2/12/2010 0.00
2/13/2010 0.00
2/14/2010 0.00
2/15/2010 0.00
2/16/2010 0.00
2/17/2010 0.00
2/18/2010 0.00
2/19/2010 0.02
2/20/2010 0.08
2/21/2010 0.39
2/22/2010 0.26
2/23/2010 T
2/24/2010 0.00
2/25/2010 0.13
2/26/2010 0.00
2/27/2010 0.00
2/28/2010 0.00
3/1/2010 T
3/2/2010 0.00
3/3/2010 0.00
3/4/2010 0.00
3/5/2010 0.06
3/6/2010 T
3/7/2010 0.01
3/8/2010 0.34
3/9/2010 0.40
3/10/2010 0.02
3/11/2010 0.09
3/12/2010 T
3/13/2010 0.00
3/14/2010 0.27
3/15/2010 0.13
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.04
3/20/2010 0.02
3/21/2010 0.00
3/22/2010 **
3/23/2010 **
3/24/2010 **
3/25/2010 **
3/26/2010 **
3/27/2010 **
3/28/2010 **
3/29/2010 **
3/30/2010 **
3/31/2010 **
Day of YearDaily PrcpMultiday Prcp
4/1/2010 **
4/2/2010 **
4/3/2010 **
4/4/2010 **
4/5/2010 **
4/6/2010 **
4/7/2010 0.49
4/8/2010
4/9/2010 0.00
4/10/2010 0.00
4/11/2010 0.00
4/12/2010 0.00
4/13/2010 0.07
4/14/2010 0.04
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.08
4/18/2010 0.00
4/19/2010 0.00
4/20/2010 T
4/21/2010 0.00
4/22/2010 0.36
4/23/2010 T
4/24/2010 T
4/25/2010 0.00
4/26/2010 0.00
4/27/2010 0.00
4/28/2010 0.00
4/29/2010 T
4/30/2010 0.04
5/1/2010 0.03
5/2/2010 0.04
5/3/2010 0.09
5/4/2010 0.00
5/5/2010 0.00
5/6/2010 0.00
5/7/2010 0.00
5/8/2010 0.00
5/9/2010 0.00
5/10/2010 0.00
5/11/2010 T
5/12/2010 0.00
5/13/2010 T
5/14/2010 0.09
5/15/2010 0.00
5/16/2010 0.00
5/17/2010 0.00
5/18/2010 0.00
5/19/2010 0.01
5/20/2010 0.00
5/21/2010 0.00
5/22/2010 0.00
5/23/2010 0.00
5/24/2010 0.01
5/25/2010 T
5/26/2010 0.00
5/27/2010 0.00
5/28/2010 0.00
5/29/2010
5/30/2010
5/31/2010
6/1/2010 0.00
6/2/2010 0.00
6/3/2010 0.00
6/4/2010 0.00
6/5/2010 0.00
6/6/2010 0.00
6/7/2010 0.00
6/8/2010 0.00
6/9/2010 0.00
6/10/2010 0.00
6/11/2010
6/12/2010 0.08
6/13/2010 0.14
6/14/2010
6/15/2010 0.00
6/16/2010 0.00
6/17/2010
6/18/2010 0.00
6/19/2010 0.00
6/20/2010 0.00
6/21/2010 0.00
6/22/2010
6/23/2010 0.00
6/24/2010 0.00
6/25/2010 0.00
6/26/2010 0.00
6/27/2010 T
6/28/2010
6/29/2010 T
6/30/2010 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010 T
7/3/2010 0.12
7/4/2010 0.00
7/5/2010 0.00
7/6/2010 0.00
7/7/2010 0.00
7/8/2010 T
7/9/2010 0.01
7/10/2010 T
7/11/2010 0.00
7/12/2010 T
7/13/2010 0.00
7/14/2010 0.00
7/15/2010 0.00
7/16/2010 0.00
7/17/2010 0.00
7/18/2010 0.00
7/19/2010 0.00
7/20/2010 0.00
7/21/2010 0.01
7/22/2010 0.21
7/23/2010 0.09
7/24/2010 0.02
7/25/2010 0.13
7/26/2010 0.35
7/27/2010
7/28/2010 T
7/29/2010 0.46
7/30/2010 0.37
7/31/2010 T
8/1/2010 **
8/2/2010 **
8/3/2010 0.79
8/4/2010
8/5/2010 0.01
8/6/2010 0.15
8/7/2010 0.00
8/8/2010 0.17
8/9/2010 0.00
8/10/2010 0.00
8/11/2010 0.01
8/12/2010 0.18
8/13/2010 0.00
8/14/2010 0.00
8/15/2010 0.00
8/16/2010 0.01
8/17/2010 0.58
8/18/2010 T
8/19/2010 0.20
8/20/2010 0.37
8/21/2010 0.00
8/22/2010 0.00
8/23/2010 0.07
8/24/2010 0.09
8/25/2010 T
8/26/2010 0.00
8/27/2010 0.00
8/28/2010 0.00
8/29/2010 0.03
8/30/2010 0.07
8/31/2010 0.06
9/1/2010 0.00
9/2/2010 0.00
9/3/2010 0.00
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 0.00
9/7/2010 0.00
9/8/2010 0.06
9/9/2010 0.15
9/10/2010 0.00
9/11/2010 0.00
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 0.00
9/16/2010 0.00
9/17/2010 0.00
9/18/2010 0.00
9/19/2010 0.00
9/20/2010 0.00
9/21/2010 0.00
9/22/2010 0.05
9/23/2010 0.97
9/24/2010 T
9/25/2010
9/26/2010
9/27/2010
9/28/2010
9/29/2010
9/30/2010



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM 0.00 0.0 M M M
10/2/2009 7:00 AM 0.00 0.0 M M M
10/3/2009 7:00 AM 0.00 0.0 M M M
10/4/2009 7:00 AM 0.02 0.0 M M M Light dusting of fresh snow on the La Platas from the overnight moisture that moved through, down to about 10,000 ft. elevation.
10/5/2009 7:00 AM T M M M M
10/6/2009 7:00 AM T 0.0 M M M
10/7/2009 7:00 AM 0.01 M M M M
10/8/2009 7:00 AM 0.01 M M M M
10/9/2009 7:00 AM 0.00 0.0 M M M
10/10/2009 7:00 AM 0.00 0.0 M M M
10/11/2009 7:00 AM 0.00 0.0 M M M
10/12/2009 7:00 AM 0.00 0.0 M M M
10/13/2009 7:00 AM 0.33 0.0 M 0.0 M Snow level was about 8,000 feet on the western side of the La Plata Mtns.
10/28/2009 7:00 AM 0.20 3.3 M 3.0 M First measurable snow at this station this fall. Largest October snowfall since 3.1 inches which fell in Oct. 2006
10/29/2009 7:00 AM 0.07 0.4 M 2.0 M Light snow showers on and off all day and overnight afrter dark on October 28th.
10/30/2009 7:00 AM T T M 1.0 M
10/31/2009 7:00 AM 0.00 0.0 M M M
11/1/2009 7:00 AM 0.00 0.0 M M M
11/2/2009 7:00 AM 0.00 0.0 M M M
11/3/2009 7:00 AM 0.00 0.0 M M M
11/4/2009 7:00 AM 0.00 0.0 M M M
11/5/2009 7:00 AM 0.00 0.0 M M M
11/6/2009 7:00 AM 0.00 0.0 M M M
11/7/2009 7:00 AM 0.00 0.0 M M M
11/8/2009 7:00 AM 0.00 0.0 M M M
11/9/2009 7:00 AM 0.00 0.0 M M M
11/10/2009 7:00 AM 0.00 0.0 M M M
11/11/2009 7:00 AM 0.00 0.0 M M M
11/12/2009 7:00 AM 0.00 0.0 M M M
11/13/2009 7:00 AM T 0.0 M M M Rain showers developed gradually in the early pre-dawn hours.....air temperatures very mild in the low 40F range.
11/14/2009 7:00 AM 0.54 1.5 M 1.0 M The first 0.10 inches of precipitation arrived as rain between 07:00 AM and 02:15 PM Nov. 13, 2009. Then rain changed to wet snow and the rest was snow. Snowfall was intermittent, with most snow accumulation occuring in the overnight hours. Air temperature never dropped below 31 deg. F.
11/15/2009 7:00 AM 0.28 1.7 M 3.0 M
11/16/2009 7:00 AM 0.00 0.0 M M M
11/17/2009 7:00 AM 0.00 0.0 M M M
11/18/2009 7:00 AM 0.00 0.0 M M M
11/19/2009 7:00 AM 0.00 0.0 M M M
11/20/2009 7:00 AM 0.00 0.0 M M M
11/21/2009 7:00 AM 0.00 0.0 M M M
11/22/2009 7:00 AM 0.00 0.0 M M M
11/23/2009 7:00 AM 0.00 0.0 M M M
12/11/2009 7:00 AM 0.00 0.0 M M M
12/12/2009 7:00 AM 0.03 0.3 M 10.0 M
12/13/2009 7:00 AM 0.10 0.8 M 10.5 M
12/14/2009 7:00 AM 0.19 2.8 M 12.0 M
12/15/2009 7:00 AM 0.00 0.0 M 11.5 M
12/16/2009 7:00 AM 0.00 0.0 M 11.0 M
12/17/2009 7:00 AM 0.00 0.0 M 11.0 M
12/18/2009 7:00 AM 0.00 0.0 M 10.5 M
12/19/2009 7:00 AM 0.00 0.0 M M M
12/20/2009 7:00 AM 0.00 0.0 M 10.0 M
12/21/2009 7:00 AM 0.00 0.0 M 9.5 M
1/2/2010 7:00 AM 0.00 0.0 M 16.0 M
1/3/2010 7:00 AM 0.00 0.0 M 15.0 M
1/4/2010 7:00 AM 0.00 0.0 M 14.0 M
1/5/2010 7:00 AM 0.00 0.0 M M M
1/6/2010 7:00 AM 0.00 0.0 M 14.0 M
1/7/2010 7:00 AM 0.00 0.0 M 14.0 M
1/8/2010 7:00 AM 0.00 0.0 M 14.0 M
1/9/2010 7:00 AM 0.00 0.0 M 14.0 M
1/10/2010 7:00 AM 0.00 0.0 M M M
1/11/2010 7:00 AM 0.00 0.0 M M M
1/19/2010 7:00 AM 0.45 5.9 M 16.3 M Snow accumulation started at 09:15 PM and fell light to mostly moderate in intensity during the night right up to 07:00 AM. Air temperatures were remarkably consistent, varying between 29.8 deg. F and 30.4 during a 9.5 hour period of snowfall; no wind.
1/20/2010 7:00 AM 0.36 4.1 M 17.0 M
1/21/2010 7:00 AM 0.27 3.1 M 18.0 M
1/22/2010 7:00 AM 0.66 6.8 M 20.0 M Beginning at 07:00 AM January 21st, , snowfall intensity was very light until 01:35 PM when it increased and so did the windspeeds. Air temperatures, which usually fall after sunset, strangely started increasing at 06:30 PM from 30 F to about 34 F by 10:30 PM which decreased snowfall rate. By 01:23 AM January 22nd, rain and sleet were falling, which only lasted about an hour; then temperatures dropped down to 28-29 F and precipitation stayed in the form of snow after that time. The rain and sleet had little effect on overall snowpack depth at this station.
1/23/2010 7:00 AM 0.51 9.0 M 25.0 M Moderate to heavy snowfall rates throughout the daylight hours with only a few brief periods of lessened snowfall intensity- a remarkable day of snowfall.
1/24/2010 7:00 AM 0.06 1.5 M 24.0 M
1/25/2010 7:00 AM 0.00 0.0 M 22.5 M
1/26/2010 7:00 AM 0.00 0.0 M 21.0 M
1/27/2010 7:00 AM 0.00 0.0 M 21.0 M
1/28/2010 7:00 AM 0.05 0.2 M 20.0 M
1/29/2010 7:00 AM 0.03 0.2 M 19.5 M Amazingly dense fog developed 06:45 PM, reducung visibilities to about 125 yards. This fog would ebb, to be replaced by light snow showers, and then re-form perhaps 6-9 times during the overnight hours.
1/30/2010 7:00 AM T T M 20.0 M
1/31/2010 7:00 AM 0.00 0.0 M 18.5 M
2/1/2010 7:00 AM 0.00 0.0 M 18.0 M
2/2/2010 7:00 AM 0.00 0.0 M 18.0 M
2/3/2010 7:00 AM 0.00 0.0 M 18.0 M
2/4/2010 7:00 AM 0.05 0.7 M 18.4 M
2/5/2010 7:00 AM 0.00 0.0 M 18.0 M
2/6/2010 7:00 AM 0.01 0.3 M 18.0 M
2/7/2010 7:00 AM 0.37 5.0 M 23.0 M
2/8/2010 7:00 AM 0.35 6.5 M 24.5 M
2/9/2010 7:00 AM T T M 23.0 M
2/12/2010 7:00 AM 0.00 0.0 M 20.5 M
2/13/2010 7:00 AM 0.00 0.0 M 20.0 M
2/14/2010 7:00 AM 0.00 0.0 M 20.0 M
2/15/2010 7:00 AM 0.00 0.0 M 19.5 M
2/16/2010 7:00 AM 0.00 0.0 M 19.5 M
2/17/2010 7:00 AM 0.00 0.0 M 19.5 M
2/18/2010 7:00 AM 0.00 0.0 M 19.5 M
2/19/2010 7:00 AM 0.02 0.7 M 19.5 M
2/20/2010 7:00 AM 0.08 1.3 M 19.5 M
2/21/2010 7:00 AM 0.39 6.5 M 24.0 M
2/22/2010 7:00 AM 0.26 4.5 M 25.0 M The water equivalent of 0.26 inches reported above is almost certain to be an underestimate, as there was considerable wind with the snow that fell 07:55 PM - 10:00 PM. The undercatch is probably about 0.14 inches.
2/23/2010 7:00 AM T T M 24.0 M
2/24/2010 7:00 AM 0.00 0.0 M 23.0 M
2/25/2010 7:00 AM 0.13 1.6 M 24.0 M
2/26/2010 7:00 AM 0.00 0.0 M 22.0 M
2/27/2010 7:00 AM 0.00 0.0 M 22.0 M
2/28/2010 7:00 AM 0.00 0.0 M 22.0 M
3/1/2010 7:00 AM T T M 21.5 M
3/2/2010 7:00 AM 0.00 0.0 M 19.5 M
3/3/2010 7:00 AM 0.00 0.0 M 17.0 M
3/4/2010 7:00 AM 0.00 0.0 M 16.5 M
3/5/2010 7:00 AM 0.06 1.9 M 17.5 M
3/6/2010 7:00 AM T T M 16.0 M
3/7/2010 7:00 AM 0.01 T M 14.0 M
3/8/2010 7:00 AM 0.34 2.5 M 16.5 M Unusual rainfall from 06:20 PM to 10:20 PM--- warm sub-tropical air ahead of the snow.
3/9/2010 7:00 AM 0.40 2.5 M 16.5 M From 07:20 AM to 04:00 PM March 8th, it snowed steadily (for about 7.5 hours). There was considerable wind 10-20 MPH in the mid afternoon of March 8th which redistributed snow across roadways nearby in significant drifts.
3/10/2010 7:00 AM 0.02 0.4 M 16.0 M
3/11/2010 7:00 AM 0.09 1.6 M 17.0 M
3/12/2010 7:00 AM T T M 15.0 M
3/13/2010 7:00 AM 0.00 0.0 M 14.0 M
3/14/2010 7:00 AM 0.27 3.2 M 16.5 M From 07:00 PM to 09:20 PM March 13, precipitation was mixed graupel with some wet snow. There were numerous flashes of lightning within a 6 mile radius.
3/15/2010 7:00 AM 0.13 2.2 M 16.0 M
3/16/2010 7:00 AM 0.00 0.0 M 14.0 M
3/17/2010 7:00 AM 0.00 0.0 M 13.0 M
3/18/2010 7:00 AM 0.00 0.0 M 12.0 M
3/19/2010 7:00 AM 0.04 T M 10.0 M Wet snow in the pre-dawn hours, only a trace of visible accumulation. The last morning we had such a warm minimum air temp. (of 33 deg. F) was Sunday, March 7, 2010.
3/20/2010 7:00 AM 0.02 0.4 M 10.0 M
3/21/2010 7:00 AM 0.00 0.0 M 9.0 M
4/9/2010 7:00 AM 0.00 0.0 M 0.0 M
4/10/2010 7:00 AM 0.00 0.0 M M M
4/11/2010 7:00 AM 0.00 0.0 M M M
4/12/2010 7:00 AM 0.00 0.0 M M M
4/13/2010 7:00 AM 0.07 0.7 M 1.0 M This snowfall was preceeded by a period of strong wind and blowing dust April 12, 2010 between 01:20 PM and 08:00 PM that restricted visibility to approximately 2-3 miles. It most certainly will have deposited dust on the snowpack of the upper west slopes of the La Plata Mtns in eastern Montezuma County, above 9500 feet which will accelerate snowmelt rate because of decreases in snowpack albedo.
4/14/2010 7:00 AM 0.04 0.8 M 0.0 M
4/15/2010 7:00 AM 0.00 0.0 M M M
4/16/2010 7:00 AM 0.00 0.0 M M M
4/17/2010 7:00 AM 0.08 0.0 M 0.0 M
4/18/2010 7:00 AM 0.00 0.0 M M M
4/19/2010 7:00 AM 0.00 0.0 M M M
4/20/2010 7:00 AM T 0.0 M 0.0 M
4/21/2010 7:00 AM 0.00 0.0 M M M
4/22/2010 7:00 AM 0.36 4.5 M 4.0 M
4/23/2010 7:00 AM T T M 0.0 M
4/24/2010 7:00 AM T T M 0.0 M
4/25/2010 7:00 AM 0.00 0.0 M M M
4/26/2010 7:00 AM 0.00 0.0 M M M
4/27/2010 7:00 AM 0.00 0.0 M M M
4/28/2010 7:00 AM 0.00 0.0 M M M
4/29/2010 7:00 AM T T M 0.0 M At 11:00 AM April 27, a windstorm began, which lasted until ~ 08:00 AM April 28, 2010. The duration (21 hours) was very unusual; generally they last only 7 hours or so. The visibility decreased from 20 miles to only 2 miles by 07:30 PM, due to blowing dust. Wind direction was from south to southwest, wgth sustained wind speeds of ~ 30 MPH and gusts to 50 MPH. This is the fifth dust storm here since April 05, 2010. It was by far the most severe in terms of poor visibility, and the longest duration dust storm since we moved here June, 2003.
4/30/2010 7:00 AM 0.04 0.6 M T M Snow flurries occurred multiple times during daylight hours April 29, 2010.
5/1/2010 7:00 AM 0.03 0.2 M T M Snow flurries intermittently during the daylight hours April 30, 2010 with the heaviest from 05:40 PM to 06:00 PM
5/2/2010 7:00 AM 0.04 0.7 M 0.5 M
5/3/2010 7:00 AM 0.09 0.6 M 0.0 M
5/4/2010 7:00 AM 0.00 0.0 M M M
5/5/2010 7:00 AM 0.00 0.0 M M M
5/6/2010 7:00 AM 0.00 0.0 M M M
5/7/2010 7:00 AM 0.00 0.0 M M M
5/8/2010 7:00 AM 0.00 0.0 M M M
5/9/2010 7:00 AM 0.00 0.0 M M M
5/10/2010 7:00 AM 0.00 0.0 M M M
5/11/2010 7:00 AM T T M 0.0 M
5/12/2010 7:00 AM 0.00 0.0 M M M
5/13/2010 7:00 AM T T M 0.0 M
5/14/2010 7:00 AM 0.09 T M 0.0 M
5/15/2010 7:00 AM 0.00 0.0 M M M
5/16/2010 7:00 AM 0.00 0.0 M M M
5/17/2010 7:00 AM 0.00 0.0 M M M
5/18/2010 7:00 AM 0.00 0.0 M M M
5/19/2010 7:00 AM 0.01 M M 0.0 M
5/20/2010 7:00 AM 0.00 0.0 M M M
5/21/2010 7:00 AM 0.00 0.0 M M M
5/22/2010 7:00 AM 0.00 0.0 M M M
5/23/2010 7:00 AM 0.00 0.0 M M M
5/24/2010 7:00 AM 0.01 T M T M
5/25/2010 7:00 AM T T M 0.0 M
5/26/2010 7:00 AM 0.00 0.0 M M M
5/27/2010 7:00 AM 0.00 0.0 M M M
5/28/2010 7:00 AM 0.00 0.0 M M M
6/1/2010 7:00 AM 0.00 0.0 M M M
6/2/2010 7:00 AM 0.00 0.0 M M M
6/3/2010 7:00 AM 0.00 0.0 M M M
6/4/2010 7:00 AM 0.00 0.0 M M M
6/5/2010 7:00 AM 0.00 0.0 M M M
6/6/2010 7:00 AM 0.00 0.0 M M M
6/7/2010 7:00 AM 0.00 0.0 M M M
6/8/2010 7:00 AM 0.00 0.0 M M M
6/9/2010 7:00 AM 0.00 0.0 M M M
6/10/2010 7:00 AM 0.00 0.0 M M M
6/12/2010 7:00 AM 0.08 0.0 M M M The first significant lightning of the spring accompanied this light rainfall. Fresh snow overnight above about 12,400 feet on Hesperus Mt. and the western side of the La Plata Mountains.
6/13/2010 7:00 AM 0.14 M M M M
6/15/2010 7:00 AM 0.00 0.0 M M M
6/16/2010 7:00 AM 0.00 0.0 M M M
6/18/2010 7:00 AM 0.00 0.0 M M M
6/19/2010 7:00 AM 0.00 0.0 M M M
6/20/2010 7:00 AM 0.00 0.0 M M M
6/21/2010 7:00 AM 0.00 0.0 M M M
6/23/2010 7:00 AM 0.00 0.0 M M M
6/24/2010 7:00 AM 0.00 0.0 M M M
6/25/2010 7:00 AM 0.00 0.0 M M M
6/26/2010 7:00 AM 0.00 0.0 M M M
6/27/2010 7:00 AM T M M M M
6/29/2010 7:00 AM T M M M M
6/30/2010 7:00 AM 0.00 0.0 M M M
7/1/2010 7:00 AM 0.00 0.0 M M M
7/2/2010 7:00 AM T M M M M
7/3/2010 7:00 AM 0.12 M M M M
7/4/2010 7:00 AM 0.00 0.0 M M M
7/5/2010 7:00 AM 0.00 0.0 M M M
7/6/2010 7:00 AM 0.00 0.0 M M M
7/7/2010 7:00 AM 0.00 0.0 M M M
7/8/2010 7:00 AM T M M M M A solitary lightning strike around 2:20 PM caused an instant fire ignition in pinyon-juniper 3 miles to the WNW. A helicopter fron Cortez dropped a fire crew on the scene, and then delivered 24 bucket drops onto the flames from nearby Summit Lake, just off Colo State Hwy 184, finishing up at 6:15 PM.
7/9/2010 7:00 AM 0.01 M M M M
7/10/2010 7:00 AM T M M M M
7/11/2010 7:00 AM 0.00 0.0 M M M
7/12/2010 7:00 AM T M M M M
7/13/2010 7:00 AM 0.00 0.0 M M M
7/14/2010 7:00 AM 0.00 0.0 M M M
7/15/2010 7:00 AM 0.00 0.0 M M M
7/16/2010 7:00 AM 0.00 0.0 M M M
7/17/2010 7:00 AM 0.00 0.0 M M M
7/18/2010 7:00 AM 0.00 0.0 M M M
7/19/2010 7:00 AM 0.00 0.0 M M M
7/20/2010 7:00 AM 0.00 0.0 M M M
7/21/2010 7:00 AM 0.01 M M M M
7/22/2010 7:00 AM 0.21 M M M M First rainfall of over 0.01 since 07-03-2010!
7/23/2010 7:00 AM 0.09 M M M M
7/24/2010 7:00 AM 0.02 M M M M
7/25/2010 7:00 AM 0.13 M M M M
7/26/2010 7:00 AM 0.35 M M M M Some rice-sized hail accompanied the first wave of precipitation (04:00 PM to 04:45 PM). The second precipitation event (07:00 PM-07:30 PM) was rain only.
7/28/2010 7:00 AM T M M M M
7/29/2010 7:00 AM 0.46 0.0 M M M Numerous periods of light to moderate rainfall--no hail. Most of the rain occurred before 11:00 PM.
7/30/2010 7:00 AM 0.37 0.0 M M M
7/31/2010 7:00 AM T M M M M
8/5/2010 7:00 AM 0.01 M M M M
8/6/2010 7:00 AM 0.15 0.0 M M M Lightning accompanied the rain and light hail. Hailpad caught the hail and will be turned in. It was a very minimal hail event.
8/7/2010 7:00 AM 0.00 0.0 M M M
8/8/2010 7:00 AM 0.17 0.0 M M M Nice gentle rains, no lightning, considerable ground level fog before dawn on August 8, which is unusual for this part of Montezuma County in August.
8/9/2010 7:00 AM 0.00 0.0 M M M
8/10/2010 7:00 AM 0.00 0.0 M M M
8/11/2010 7:00 AM 0.01 0.0 M M M
8/12/2010 7:00 AM 0.18 M M M M
8/13/2010 7:00 AM 0.00 0.0 M M M
8/14/2010 7:00 AM 0.00 0.0 M M M
8/15/2010 7:00 AM 0.00 0.0 M M M
8/16/2010 7:00 AM 0.01 M M M M
8/17/2010 7:00 AM 0.58 0.0 M M M A significant weather report was filed online approximately 07:25 PM Aug. 16, 2010. Heaviest precipitation commenced at 07:05 PM with 50 MPH wind out of the west and sheets of horizontal rain, unusually intense. Only a few lightning strikes, still a mile ot two distant. Due to wind, there was likely undercatch in my gage of a tenth of an inch perhaps.
8/18/2010 7:00 AM T M M M M
8/19/2010 7:00 AM 0.20 M M M M
8/20/2010 7:00 AM 0.37 0.0 M M M
8/21/2010 7:00 AM 0.00 0.0 M M M
8/22/2010 7:00 AM 0.00 0.0 M M M
8/23/2010 7:00 AM 0.07 0.0 M M M
8/24/2010 7:00 AM 0.09 0.0 M M M
8/25/2010 7:00 AM T M M M M
8/26/2010 7:00 AM 0.00 0.0 M M M
8/27/2010 7:00 AM 0.00 0.0 M M M
8/28/2010 7:00 AM 0.00 0.0 M M M
8/29/2010 7:00 AM 0.03 0.0 M M M
8/30/2010 7:00 AM 0.07 0.0 M M M Small amount of rice-sized hail fell at 06:58 AM. The majority of the rain fell between 04:55 AM and 07:00 AM.
8/31/2010 7:00 AM 0.06 0.0 M M M
9/1/2010 7:00 AM 0.00 0.0 M M M
9/2/2010 7:00 AM 0.00 0.0 M M M
9/3/2010 7:00 AM 0.00 0.0 M M M
9/4/2010 7:00 AM 0.00 0.0 M M M
9/5/2010 7:00 AM 0.00 0.0 M M M
9/6/2010 7:00 AM 0.00 0.0 M M M
9/7/2010 7:00 AM 0.00 0.0 M M M
9/8/2010 7:00 AM 0.06 0.0 M M M
9/9/2010 7:00 AM 0.15 0.0 M M M
9/10/2010 7:00 AM 0.00 0.0 M M M
9/11/2010 7:00 AM 0.00 0.0 M M M
9/12/2010 7:00 AM 0.00 0.0 M M M
9/13/2010 7:00 AM 0.00 0.0 M M M
9/14/2010 7:00 AM 0.00 0.0 M M M
9/15/2010 7:00 AM 0.00 0.0 M M M
9/16/2010 7:00 AM 0.00 0.0 M M M
9/17/2010 7:00 AM 0.00 0.0 M M M
9/18/2010 7:00 AM 0.00 0.0 M M M
9/19/2010 7:00 AM 0.00 0.0 M M M
9/20/2010 7:00 AM 0.00 0.0 M M M
9/21/2010 7:00 AM 0.00 0.0 M M M
9/22/2010 7:00 AM 0.05 0.0 M M M
9/23/2010 7:00 AM 0.97 0.0 M M M On the higher west slopes of the La Plata Mts., fresh snow has fallen overnight above 11,000 feet elevation, which is the first we have seen this fall on those slopes.
9/24/2010 7:00 AM T 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/14/2009 10/27/2009 7:00 PM 14 0.00 0.0 M
11/24/2009 12/09/2009 6:00 PM 16 1.40 14.0 M The estimated total snowfall for this 16 day accumulation period was 17.5 inches. One half inch of this total snowfall fell 11/29/09.
12/22/2009 12/31/2009 7:00 PM 10 0.54 17.0 M Reports in the neighborhood indicate about 16 inches of snow was received during this 10 day period - the 0.54 inches of water is very likely an undercatch by several tenths of an inch.
1/13/2010 1/18/2010 5:00 PM 6 0.02 11.3 M This precipitation was likely from snow that occurrerd Jan. 14th and 15th, with only trace accumulations. January 13, 16, 17, and 18 were all dry.
2/10/2010 2/11/2010 6:00 PM 2 0.06 20.5 M It is estimated that 1.5 inches of snow was rersponsible for the 0.06 inches of precipitation. It fell between 02:00 PM Feb. 09, 2010 and 07:00 AM on Feb. 10, 2010.
3/22/2010 4/07/2010 7:00 AM 17 0.49 T M Neighborhood reports indicate that most of this precipitation came as snow, about 2.2 inches total.
8/1/2010 8/03/2010 7:00 PM 3 0.79 0.0 M This precipitation, accoring to neighbor reports, arrived the afternoon of August 1, the evening of August 1, and the afternoon of August 3, 2010.



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
7/25/2010 4:00 PM 1/4" Pea Size 1/4" Pea Size Rice Hard|White Ice 15 10min no damage Intermittent True After rain Same time as smaller hail 82 2.0
8/5/2010 8:00 AM 1/4" Pea Size Rice Rice Mixed|Clear Ice 5 10min no damage False After rain Same time as smaller hail 48 1.5
8/16/2010 2:00 PM Rice Rice Rice Mixed|Clear Ice 5 3min no damage Intermittent True After rain 7