Station Overview Station Location
Station Number CO-MZ-45 Latitude 37.35392
Station Name Cortez 0.5 WNW Longitude -108.58501
County Montezuma Elevation (ft) 6163



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 1.28 1.44 22 1.44 18 0.00 4 0 10 0 0.0 0 0
Nov 10 1.03 0.37 33 0.15 11 0.22 22 2 2 2 2.8 3 3
Dec 10 0.94 2.69 42 2.69 10 0.00 32 2 8 1 16.1 4 4
Jan 11 1.07 0.04 4 0.04 4 0.00 0 0 1 2 0.5 2 1
Feb 11 1.11 0.38 5 0.38 5 0.00 0 0 3 1 6.1 3 2
March 11 1.30 0.50 2 0.50 2 0.00 0 0 1 1 1.0 1 1
April 11 0.97 0.92 5 0.08 1 0.84 4 1 1 0 0.0 0 0
May 11 0.73 1.22 11 0.07 2 1.15 9 1 1 1 0.0 0 0
June 11 0.39 0.02 4 0.02 4 0.00 0 0 1 1 0.0 0 0
July 11 1.33 0.55 7 0.53 5 0.02 2 1 2 1 0.0 0 0
Aug 11 1.47 0.71 15 0.71 15 0.00 0 0 8 4 0.0 0 0
Sept 11 1.55 1.65 18 1.65 18 0.00 0 0 10 1 0.0 0 0
Water Year Totals: 13.17" 10.49" 168 days 8.26" 95 2.23" 73 days 7 48 days 15 days 26.5" 13 days 11 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
10/2/2010
10/3/2010
10/4/2010 0.13
10/5/2010 0.03
10/6/2010 0.12
10/7/2010 0.02
10/8/2010 0.00
10/9/2010 0.00
10/10/2010
10/11/2010
10/12/2010
10/13/2010 0.00
10/14/2010
10/15/2010
10/16/2010
10/17/2010 0.00
10/18/2010 0.01
10/19/2010 0.00
10/20/2010 0.00
10/21/2010 0.39
10/22/2010 0.02
10/23/2010 0.36
10/24/2010 0.10
10/25/2010
10/26/2010 0.26
10/27/2010
10/28/2010 0.00 **
10/29/2010 0.00 **
10/30/2010 **
10/31/2010 **
11/1/2010 **
11/2/2010 **
11/3/2010 **
11/4/2010 **
11/5/2010 **
11/6/2010 **
11/7/2010 **
11/8/2010 **
11/9/2010 **
11/10/2010 **
11/11/2010 **
11/12/2010 **
11/13/2010 **
11/14/2010 **
11/15/2010 T 0.22
11/16/2010 0.00
11/17/2010 0.00
11/18/2010 0.00
11/19/2010 0.00
11/20/2010 0.00
11/21/2010 T
11/22/2010 0.00
11/23/2010 **
11/24/2010 0.00
11/25/2010 0.01
11/26/2010 **
11/27/2010 **
11/28/2010 **
11/29/2010 0.14 **
11/30/2010 0.00 **
12/1/2010 **
12/2/2010 **
12/3/2010 **
12/4/2010 **
12/5/2010 **
12/6/2010 **
12/7/2010 **
12/8/2010 **
12/9/2010 **
12/10/2010 **
12/11/2010 **
12/12/2010 **
12/13/2010 **
12/14/2010 **
12/15/2010 0.00
12/16/2010 T **
12/17/2010 0.10 0.00
12/18/2010 0.20
12/19/2010 0.44
12/20/2010 0.00
12/21/2010 0.04
12/22/2010 0.25
12/23/2010
12/24/2010
12/25/2010
12/26/2010
12/27/2010
12/28/2010
12/29/2010 0.12
12/30/2010 1.10
12/31/2010 0.44
Day of YearDaily PrcpMultiday Prcp
1/1/2011
1/2/2011
1/3/2011
1/4/2011 0.00
1/5/2011
1/6/2011
1/7/2011
1/8/2011
1/9/2011
1/10/2011 T
1/11/2011
1/12/2011
1/13/2011
1/14/2011 0.04
1/15/2011
1/16/2011
1/17/2011
1/18/2011
1/19/2011
1/20/2011
1/21/2011
1/22/2011
1/23/2011
1/24/2011
1/25/2011
1/26/2011
1/27/2011
1/28/2011
1/29/2011
1/30/2011
1/31/2011 T
2/1/2011 0.00
2/2/2011 T
2/3/2011
2/4/2011
2/5/2011
2/6/2011
2/7/2011
2/8/2011 0.23
2/9/2011
2/10/2011
2/11/2011
2/12/2011
2/13/2011
2/14/2011
2/15/2011
2/16/2011
2/17/2011
2/18/2011
2/19/2011
2/20/2011 0.10
2/21/2011 0.05
2/22/2011
2/23/2011
2/24/2011
2/25/2011
2/26/2011
2/27/2011
2/28/2011
3/1/2011
3/2/2011
3/3/2011
3/4/2011
3/5/2011
3/6/2011
3/7/2011 T
3/8/2011 0.50
3/9/2011
3/10/2011
3/11/2011
3/12/2011
3/13/2011
3/14/2011
3/15/2011
3/16/2011
3/17/2011
3/18/2011
3/19/2011
3/20/2011
3/21/2011
3/22/2011
3/23/2011
3/24/2011
3/25/2011
3/26/2011
3/27/2011
3/28/2011
3/29/2011
3/30/2011
3/31/2011
Day of YearDaily PrcpMultiday Prcp
4/1/2011
4/2/2011
4/3/2011
4/4/2011
4/5/2011
4/6/2011
4/7/2011
4/8/2011
4/9/2011
4/10/2011
4/11/2011
4/12/2011
4/13/2011
4/14/2011
4/15/2011
4/16/2011
4/17/2011
4/18/2011
4/19/2011
4/20/2011
4/21/2011
4/22/2011 **
4/23/2011 **
4/24/2011 **
4/25/2011 0.84
4/26/2011 0.08
4/27/2011
4/28/2011
4/29/2011
4/30/2011
5/1/2011
5/2/2011
5/3/2011
5/4/2011
5/5/2011
5/6/2011
5/7/2011
5/8/2011
5/9/2011
5/10/2011
5/11/2011
5/12/2011 **
5/13/2011 **
5/14/2011 **
5/15/2011 **
5/16/2011 **
5/17/2011 **
5/18/2011 **
5/19/2011 **
5/20/2011 1.15
5/21/2011 0.07
5/22/2011
5/23/2011
5/24/2011
5/25/2011
5/26/2011
5/27/2011
5/28/2011
5/29/2011 T
5/30/2011
5/31/2011
6/1/2011
6/2/2011
6/3/2011
6/4/2011
6/5/2011
6/6/2011
6/7/2011
6/8/2011
6/9/2011
6/10/2011
6/11/2011
6/12/2011
6/13/2011
6/14/2011
6/15/2011
6/16/2011 0.00
6/17/2011
6/18/2011 0.00
6/19/2011
6/20/2011 0.02
6/21/2011
6/22/2011
6/23/2011
6/24/2011
6/25/2011
6/26/2011
6/27/2011
6/28/2011
6/29/2011
6/30/2011 T
Day of YearDaily PrcpMultiday Prcp
7/1/2011
7/2/2011
7/3/2011
7/4/2011
7/5/2011
7/6/2011
7/7/2011
7/8/2011
7/9/2011 T
7/10/2011
7/11/2011
7/12/2011 **
7/13/2011 0.00 0.02
7/14/2011
7/15/2011
7/16/2011
7/17/2011
7/18/2011
7/19/2011
7/20/2011
7/21/2011
7/22/2011
7/23/2011
7/24/2011
7/25/2011
7/26/2011 0.29
7/27/2011
7/28/2011
7/29/2011
7/30/2011 0.00
7/31/2011 0.24
8/1/2011 0.02
8/2/2011 0.04
8/3/2011 T
8/4/2011 0.00
8/5/2011
8/6/2011
8/7/2011
8/8/2011
8/9/2011
8/10/2011
8/11/2011
8/12/2011
8/13/2011
8/14/2011
8/15/2011
8/16/2011
8/17/2011
8/18/2011 T
8/19/2011 T
8/20/2011
8/21/2011 0.15
8/22/2011 0.33
8/23/2011 0.02
8/24/2011 0.00
8/25/2011 0.01
8/26/2011 T
8/27/2011 0.02
8/28/2011
8/29/2011 0.12
8/30/2011 0.00
8/31/2011
9/1/2011 0.13
9/2/2011 0.02
9/3/2011 0.00
9/4/2011
9/5/2011
9/6/2011 T
9/7/2011 0.02
9/8/2011 0.00
9/9/2011
9/10/2011
9/11/2011 0.01
9/12/2011 0.09
9/13/2011
9/14/2011 0.01
9/15/2011 0.74
9/16/2011 0.08
9/17/2011 0.28
9/18/2011 0.27
9/19/2011 0.00
9/20/2011
9/21/2011 0.00
9/22/2011 0.00
9/23/2011 0.00
9/24/2011 0.00
9/25/2011
9/26/2011
9/27/2011
9/28/2011
9/29/2011
9/30/2011



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/4/2010 7:00 AM 0.13 M M M M
10/5/2010 7:00 AM 0.03 M M M M
10/6/2010 7:00 AM 0.12 M M M M
10/7/2010 7:00 AM 0.02 M M M M
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
10/13/2010 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 0.01 M M M M
10/19/2010 7:00 AM 0.00 0.0 M M M
10/20/2010 7:00 AM 0.00 0.0 M M M
10/21/2010 7:00 AM 0.39 M M M M
10/22/2010 7:00 AM 0.02 M M M M
10/23/2010 7:00 AM 0.36 M M M M
10/24/2010 7:00 AM 0.10 M M M M
10/26/2010 7:00 AM 0.26 M M M M a few light sleet sprinkles in the PM; very small-twice the size of a pinhead-light weight and white. No accumulation, no imprint on the sleet board
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
11/15/2010 7:00 AM T 0.1 T 0.1 T
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 0.00 0.0 M M M
11/21/2010 7:00 AM T M M M M
11/22/2010 7:00 AM 0.00 0.0 M M M I do not have a snow board in place. Do you want me to not report snow if I can't measure the liquid? I tried to report 0.80 inches of snow and it would not accept the report.
11/25/2010 7:00 AM 0.01 0.5 0.01 M M
11/29/2010 7:00 AM 0.14 2.2 0.14 2.2 0.14
11/30/2010 7:00 AM 0.00 0.0 M 1.5 0.13
12/16/2010 7:00 AM T M M M M
12/17/2010 7:00 AM 0.10 M M M M
12/18/2010 8:00 AM 0.20 2.0 0.20 2.0 0.20 steady moderately heavy snow fall. flakes change size from small to moderately large. it is heavy snow, temp at 6 foot is 33 degrees F.
12/19/2010 11:00 AM 0.44 M M M M
12/20/2010 7:00 AM 0.00 0.0 M M M
12/21/2010 7:00 AM 0.04 M M M M
12/22/2010 9:15 AM 0.25 M M M M
12/29/2010 8:30 AM 0.12 1.1 0.12 1.1 0.12 moderately heavy, continuing snow fall. start time unknown but probably about 5:30AM (the newspaper was delivered before the snow started)
12/30/2010 8:30 AM 1.10 9.9 0.97 11.0 1.11 Temp 28 degrees F; slight breeze; flakes vary from very small to very large and back over time. snowed for 24 hours without observed break until observation time.
12/31/2010 7:00 AM 0.44 3.1 0.44 12.0 1.05 Snow most of the reporting period, including at about 4PM rice-size white sleet, light intensity, for about one hour. We got about three inches overnight. It was 8 degrees F at 7AM.
1/4/2011 7:00 AM 0.00 0.0 M M M light snow started at 7:45am
1/10/2011 7:00 AM T T M M M
1/14/2011 7:00 AM 0.04 0.3 0.04 8.0 M
1/31/2011 7:00 AM T 0.2 M M M
2/1/2011 7:00 AM 0.00 0.0 M M M
2/2/2011 7:00 AM T M T M M
2/8/2011 5:45 AM 0.23 5.0 0.23 7.0 M Had a 6:30am meeting, hence the early reading. At 8am there was another 1" of snow, that measured .06" of H2O. Snow fall had stopped at 8am (all of this is what happend while I was out of Cortez).
2/20/2011 7:00 AM 0.10 0.3 M M M snow came at about 6pm following rain, both from the ssw
2/21/2011 8:00 AM 0.05 0.8 0.05 0.5 M A very light, fine snow fell throughout most of the daylight hoursd but there was no accumulation and amounted to a trace of h2o. Temperature was about 36F throughout daylight hours. The temp dropped after dark and the snow started to accumulate. Don't know what the duration of the snow fall was.
3/7/2011 6:50 AM T M M M M feel during hours of darkness
3/8/2011 8:30 AM 0.50 1.0 0.19 2.0 0.29
4/26/2011 7:00 AM 0.08 M M M M
5/21/2011 7:00 AM 0.07 M M M M showers, mostly light, all passing thru, continued throughout the day
5/29/2011 7:00 AM T M M M M Ar about 5:45PM MST, I went out to the car; there appeared to be mud droplets all over it, including the windshield. Used the windshield washer to clean it. When i came out from eating, there had been another light shower. There were mud drops all over the clean windshield. Hadn't seen rain water take the dust out of the air and make mud drops before. I could see dust in the air to the West of Cortez.
6/16/2011 7:00 AM 0.00 0.0 M M M
6/18/2011 7:00 AM 0.00 0.0 M M M
6/20/2011 7:00 AM 0.02 M M M M
6/30/2011 7:00 AM T M M M M Several times during the late afternoon and early evening, there were very short sprinkles that caused spotted windows for 15 to 60 saeconds.
7/9/2011 7:00 AM T M M M M sprinkle occurred about 10 pm
7/13/2011 7:00 AM 0.00 0.0 M M M
7/26/2011 7:45 AM 0.29 M M M M
7/30/2011 7:00 AM 0.00 0.0 M M M
7/31/2011 7:30 AM 0.24 M M M M
8/1/2011 7:00 AM 0.02 M M M M
8/2/2011 7:00 AM 0.04 M M M M
8/3/2011 7:00 AM T M M M M
8/4/2011 7:00 AM 0.00 0.0 M M M Cloudy most of the day. Lightning to the north in early evening.
8/18/2011 7:00 AM T M M M M
8/19/2011 7:00 AM T M M M M
8/21/2011 7:00 AM 0.15 M M M M At 3:29pm 8/20/11 the first real rain 0f the season began, lawting until 3:44pm. Rainfall amounted to 0.14 inch. The othew 0,01" occirrwes just before dusk at about 7:30pm.
8/22/2011 7:00 AM 0.33 M M M M
8/23/2011 7:00 AM 0.02 M M M M
8/24/2011 7:00 AM 0.00 0.0 M M M
8/25/2011 7:00 AM 0.01 M M M M
8/26/2011 7:00 AM T M M M M
8/27/2011 7:00 AM 0.02 M M M M lots of lightning and thunder in the distance starting about 10:30pm
8/29/2011 7:00 AM 0.12 M M M M
8/30/2011 7:00 AM 0.00 0.0 M M M
9/1/2011 7:00 AM 0.13 M M M M
9/2/2011 7:00 AM 0.02 M M M M
9/3/2011 7:00 AM 0.00 0.0 M M M
9/6/2011 7:00 AM T M M M M several very light showers
9/7/2011 7:00 AM 0.02 M M M M
9/8/2011 7:00 AM 0.00 0.0 M M M
9/11/2011 7:00 AM 0.01 M M M M
9/12/2011 7:00 AM 0.09 M M M M
9/14/2011 7:00 AM 0.01 M M M M Dizzle, light rain continues
9/15/2011 7:00 AM 0.74 M M M M 0.22 fell between 7AM and 630PM during daylight on 9/14/11.
9/16/2011 8:00 AM 0.08 M M M M
9/17/2011 7:32 AM 0.28 M M M M The storm hit at 10:30PM with wind and a down-pour coming from the SW. 10:30 PM is accurate to 2 minutes by atomic clock. It lasted 10-12 minutes - estimated.
9/18/2011 7:00 AM 0.27 M M M M
9/19/2011 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



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/28/2010 11/15/2010 8:30 PM 19 0.22 M M
11/23/2010 11/24/2010 7:00 AM 2 0.00 M M
11/26/2010 12/17/2010 7:00 AM 22 0.00 M M
12/1/2010 12/15/2010 7:00 AM 15 0.00 M M
4/22/2011 4/25/2011 8:45 PM 4 0.84 0.0 0.00
5/12/2011 5/20/2011 7:30 AM 9 1.15 0.0 0.00 During the period there was rice to small pea size whilte hail. I did not have a hail pad. There was some very temporary accumulation on the ground of the small-sized hail. I had two collection tubes mounted on a pole, one on the east side, one on the west, both at the same height at the top of the pole. They both had the same amount of liquid in them.
7/12/2011 7/13/2011 8:00 AM 2 0.02 0.0 0.00 about 0.01 fekk during the night of each day



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