Station Overview Station Location
Station Number CO-LK-27 Latitude 39.06928
Station Name Twin Lakes 3.1 WSW Longitude -106.4365
County Lake Elevation (ft) 9740



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 12 1.69 0.03 5 0.03 5 0.00 0 0 1 0 0.0 0 0
Nov 12 1.77 0.00 6 0.00 6 0.00 0 0 0 0 0.0 0 2
Dec 12 1.41 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 13 1.37 0.00 10 0.00 10 0.00 0 0 0 0 0.0 0 8
Feb 13 1.60 0.69 8 0.30 5 0.39 3 1 3 2 4.0 3 5
March 13 2.23 0.40 3 0.40 3 0.00 0 0 2 0 6.2 2 3
April 13 2.38 0.02 2 0.02 2 0.00 0 0 1 1 0.3 1 2
May 13 2.02 1.89 4 1.89 4 0.00 0 0 4 0 22.8 4 4
June 13 1.38 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 13 2.09 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 13 2.35 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 13 1.76 0.33 4 0.33 4 0.00 0 0 3 0 0.0 0 0
Water Year Totals: 22.05" 3.36" 42 days 2.97" 39 0.39" 3 days 1 14 days 3 days 33.3" 10 days 24 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
10/1/2012
10/2/2012
10/3/2012
10/4/2012
10/5/2012
10/6/2012
10/7/2012
10/8/2012 0.00
10/9/2012 0.00
10/10/2012 0.00
10/11/2012 0.00
10/12/2012 0.03
10/13/2012
10/14/2012
10/15/2012
10/16/2012
10/17/2012
10/18/2012
10/19/2012
10/20/2012
10/21/2012
10/22/2012
10/23/2012
10/24/2012
10/25/2012
10/26/2012
10/27/2012
10/28/2012
10/29/2012
10/30/2012
10/31/2012
11/1/2012
11/2/2012
11/3/2012
11/4/2012
11/5/2012
11/6/2012
11/7/2012
11/8/2012
11/9/2012
11/10/2012
11/11/2012
11/12/2012
11/13/2012
11/14/2012
11/15/2012
11/16/2012
11/17/2012
11/18/2012
11/19/2012
11/20/2012
11/21/2012
11/22/2012
11/23/2012
11/24/2012
11/25/2012 0.00
11/26/2012 0.00
11/27/2012 0.00
11/28/2012 0.00
11/29/2012 0.00
11/30/2012 0.00
12/1/2012
12/2/2012
12/3/2012
12/4/2012
12/5/2012
12/6/2012
12/7/2012
12/8/2012
12/9/2012
12/10/2012
12/11/2012
12/12/2012
12/13/2012
12/14/2012
12/15/2012
12/16/2012
12/17/2012
12/18/2012
12/19/2012
12/20/2012
12/21/2012
12/22/2012
12/23/2012
12/24/2012
12/25/2012
12/26/2012
12/27/2012
12/28/2012
12/29/2012
12/30/2012
12/31/2012
Day of YearDaily PrcpMultiday Prcp
1/1/2013
1/2/2013
1/3/2013
1/4/2013 0.00
1/5/2013 0.00
1/6/2013 0.00
1/7/2013 0.00
1/8/2013 0.00
1/9/2013
1/10/2013
1/11/2013
1/12/2013
1/13/2013
1/14/2013
1/15/2013
1/16/2013
1/17/2013
1/18/2013
1/19/2013
1/20/2013 0.00
1/21/2013 0.00
1/22/2013 0.00
1/23/2013 0.00
1/24/2013 0.00
1/25/2013
1/26/2013
1/27/2013
1/28/2013
1/29/2013
1/30/2013
1/31/2013
2/1/2013
2/2/2013
2/3/2013
2/4/2013
2/5/2013
2/6/2013
2/7/2013
2/8/2013
2/9/2013
2/10/2013
2/11/2013
2/12/2013
2/13/2013
2/14/2013
2/15/2013
2/16/2013
2/17/2013
2/18/2013
2/19/2013
2/20/2013 T
2/21/2013 0.27
2/22/2013 0.01
2/23/2013 **
2/24/2013 **
2/25/2013 T 0.39
2/26/2013 0.02
2/27/2013
2/28/2013
3/1/2013
3/2/2013
3/3/2013
3/4/2013 0.32
3/5/2013 0.08
3/6/2013 0.00
3/7/2013
3/8/2013
3/9/2013
3/10/2013
3/11/2013
3/12/2013
3/13/2013
3/14/2013
3/15/2013
3/16/2013
3/17/2013
3/18/2013
3/19/2013
3/20/2013
3/21/2013
3/22/2013
3/23/2013
3/24/2013
3/25/2013
3/26/2013
3/27/2013
3/28/2013
3/29/2013
3/30/2013
3/31/2013
Day of YearDaily PrcpMultiday Prcp
4/1/2013
4/2/2013
4/3/2013
4/4/2013
4/5/2013
4/6/2013
4/7/2013
4/8/2013
4/9/2013
4/10/2013
4/11/2013
4/12/2013
4/13/2013
4/14/2013
4/15/2013
4/16/2013
4/17/2013 T
4/18/2013 0.02
4/19/2013
4/20/2013
4/21/2013
4/22/2013
4/23/2013
4/24/2013
4/25/2013
4/26/2013
4/27/2013
4/28/2013
4/29/2013
4/30/2013
5/1/2013
5/2/2013
5/3/2013
5/4/2013
5/5/2013
5/6/2013
5/7/2013 0.29
5/8/2013 0.11
5/9/2013 1.47
5/10/2013 0.02
5/11/2013
5/12/2013
5/13/2013
5/14/2013
5/15/2013
5/16/2013
5/17/2013
5/18/2013
5/19/2013
5/20/2013
5/21/2013
5/22/2013
5/23/2013
5/24/2013
5/25/2013
5/26/2013
5/27/2013
5/28/2013
5/29/2013
5/30/2013
5/31/2013
6/1/2013
6/2/2013
6/3/2013
6/4/2013
6/5/2013
6/6/2013
6/7/2013
6/8/2013
6/9/2013
6/10/2013
6/11/2013
6/12/2013
6/13/2013
6/14/2013
6/15/2013
6/16/2013
6/17/2013
6/18/2013
6/19/2013
6/20/2013
6/21/2013
6/22/2013
6/23/2013
6/24/2013
6/25/2013
6/26/2013
6/27/2013
6/28/2013
6/29/2013
6/30/2013
Day of YearDaily PrcpMultiday Prcp
7/1/2013
7/2/2013
7/3/2013
7/4/2013
7/5/2013
7/6/2013
7/7/2013
7/8/2013
7/9/2013
7/10/2013
7/11/2013
7/12/2013
7/13/2013
7/14/2013
7/15/2013
7/16/2013
7/17/2013
7/18/2013
7/19/2013
7/20/2013
7/21/2013
7/22/2013
7/23/2013
7/24/2013
7/25/2013
7/26/2013
7/27/2013
7/28/2013
7/29/2013
7/30/2013
7/31/2013
8/1/2013
8/2/2013
8/3/2013
8/4/2013
8/5/2013
8/6/2013
8/7/2013
8/8/2013
8/9/2013
8/10/2013
8/11/2013
8/12/2013
8/13/2013
8/14/2013
8/15/2013
8/16/2013
8/17/2013
8/18/2013
8/19/2013
8/20/2013
8/21/2013
8/22/2013
8/23/2013
8/24/2013
8/25/2013
8/26/2013
8/27/2013
8/28/2013
8/29/2013
8/30/2013
8/31/2013
9/1/2013
9/2/2013
9/3/2013
9/4/2013
9/5/2013
9/6/2013
9/7/2013
9/8/2013
9/9/2013
9/10/2013 0.04
9/11/2013 0.13
9/12/2013 0.16
9/13/2013
9/14/2013
9/15/2013
9/16/2013
9/17/2013
9/18/2013
9/19/2013
9/20/2013
9/21/2013
9/22/2013
9/23/2013
9/24/2013
9/25/2013
9/26/2013
9/27/2013
9/28/2013
9/29/2013
9/30/2013 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/8/2012 8:00 AM 0.00 0.0 M M M Dry windy day, no clouds or precipitation. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/A; Low temp: 21.0º.
10/9/2012 8:00 AM 0.00 0.0 M 0.0 M Another dry windy day, no clouds or precipitation. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/A; Low temp: 33.8º.
10/10/2012 8:00 AM 0.00 0.0 M 0.0 M Very windy dry day with no clouds or rain. Sustained wind of 25 to 30 mph for most of the morning and afternoon. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: 57.9º; Low temp: 29.1º; Peak wind gust: 35.1 mph @ 10:30.
10/11/2012 8:00 AM 0.00 0.0 M 0.0 M
10/12/2012 8:00 AM 0.03 0.0 M 0.0 M Several light showers during the evening and again early morning, light accumulations, snow in the mountains above 11,000 feet.
11/25/2012 8:00 AM 0.00 0.0 M 0.5 M Haven't been up here in a while, still some snow left mostly in the shady and treed areas, not much melting off.
11/26/2012 8:00 AM 0.00 0.0 M 0.5 M Windy, cold and dry.
11/27/2012 8:00 AM 0.00 0.0 M T M A dry windy and cool day.
11/28/2012 8:00 AM 0.00 0.0 M T M Another dry windy day, no clouds or precipitation, with humidity into single digits for most of the afternoon. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/A; Low temp: 15.0º @ 05:18; Hi wind gust: 23.2 mph @ 14:26; Min windchill: 8.2º @ 23:56.
11/29/2012 8:00 AM 0.00 0.0 M T M Still dry and windy.
11/30/2012 8:00 AM 0.00 0.0 M T M
1/4/2013 8:00 AM 0.00 0.0 M 10.5 M
1/5/2013 8:00 AM 0.00 0.0 M 10.5 M Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/A; Low temp: minus 13.7º @ 07:30; Hi wind gust: 16.5 mph @ 01:26; Min windchill: N/Aº.
1/6/2013 8:00 AM 0.00 0.0 M 10.5 M Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: 28º; Low temp: minus 6.5º @ 07:56; Hi wind gust: 28.1 mph @ 11:45; Min windchill: minus 8.7º @ 22:30.
1/7/2013 8:00 AM 0.00 0.0 M 10.0 M Mostly sunny and dry with variable winds during the day. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: 30º; Low temp: minus 3.2º @ 06:05; Hi wind gust: 14.3 mph @ 13:33; Min windchill: minus 4.7º @ 07:26.
1/8/2013 8:00 AM 0.00 0.0 M 9.5 M
1/20/2013 8:00 AM 0.00 0.0 M 8.0 M Temperatures creeping to just above the freezing mark.
1/21/2013 8:00 AM 0.00 0.0 M 8.0 M Mostly sunny and dry with gusty winds during the day. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/Aº; Low temp: minus 2.0º @ 07:33; Hi wind gust: 15.5 mph @ 16:45; Min windchill: N/Aº.
1/22/2013 8:00 AM 0.00 0.0 M 7.5 M Sunny and dry with gusty winds during the day. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: 31.0º; Low temp: 3.0º @ 02:08; Hi wind gust: 26.6 mph @ 11:01; Min windchill: N/Aº.
1/23/2013 8:00 AM 0.00 0.0 M M M
1/24/2013 8:00 AM 0.00 0.0 M M M
2/20/2013 8:00 AM T T T 11.0 M Some flurries early in the day.
2/21/2013 8:00 AM 0.27 3.5 0.31 13.5 M Total snow amount corrected to 13.5". Mostly light snow started late afternoon with some heavier squalls mixed in. Some squalls blowing off from the surrounding mountain peaks early this morning. Little wind during most of the storm. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/Aº; Low temp: 11.0º @ 07:14; Hi wind gust: 15.2 mph @ 15:08; Min windchill: 10.9º.
2/22/2013 8:00 AM 0.01 0.2 0.01 13.5 2.41 Light snow showers blowing off surrounding peaks on and off throughout the day. SWE sample contained quite a bit of ice crystals. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/Aº; Low temp: minus 5.3º @ 05:28; Hi wind gust: 21.6 mph @ 14:36; Min windchill: N/Aº.
2/25/2013 8:00 AM T T M 14.0 M
2/26/2013 8:00 AM 0.02 0.3 0.02 14.0 M Light snow late evening into early morning. Still snowing lightly at time of report.
3/4/2013 8:00 AM 0.32 5.2 0.34 17.5 2.29
3/5/2013 8:00 AM 0.08 1.0 M 18.0 M Light snow on and off during the morning and into late afternoon.
3/6/2013 8:00 AM 0.00 0.0 M 16.5 M
4/17/2013 8:00 AM T T T 21.0 M A few light snow showers during the evening and early morning with minimal accumulation. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/Aº; Low temp: 27.3º @ 07:59; Hi wind gust: 31.5 mph @ 17:41; Min windchill: 15.9º @ 05:18.
4/18/2013 8:00 AM 0.02 0.3 M 19.5 M A few light snow showers on and off during the day with light accumulation. Unable to get a core sample for a SWE due to depth of snow. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/Aº; Low temp: 3.1º @ 06:20; Hi wind gust: 29.3 mph @ 09:42; Min windchill: minus 10.2º @ 05:36.
5/7/2013 8:00 AM 0.29 2.5 M 2.0 M Light rain on and off during late afternoon and changing into freezing rain then snow around 20:30. Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/Aº; Low temp: 28.2º @ 06:08; Hi wind gust: 14.9 mph @ 17:20; Min windchill: 26.9º @ 22:22.
5/8/2013 8:00 AM 0.11 0.6 M 0.5 M Snow, rain and freezing rain with some graupel thrown in. Light snow early morning, clearing during the afternoon and then light rain changing over to freezing rain and then heavier snow. Light accumulations due to above freezing temps. New round of heavy snow starting just about time of report this morning. Freezing rain amounted to about .25 inch on exposed surfaces.
5/9/2013 8:00 AM 1.47 19.5 M 14.5 M And yes, 19.5" is a correct measurement. Unfortunately, snow bridged the rain gauge so precipitation total is low. Rapid melting of snow already on the ground has made SWE and core samples impossible to make accurately. Snow, light rain and sleet with some graupel thrown in. Heavy round of snow early morning into the afternoon with about 6 inches of accumulation, clearing during the afternoon and most of the early snow melted off. Snow began again around 20:00 and continued throughout the night with heavy snowfall and accumulation of another 14 inches. Light snow continues at time of report.
5/10/2013 8:00 AM 0.02 0.2 M 8.0 M Light snow continued for a few hours with light accumulation. Quite a bit of melting and settling with remaining snowpack.
9/10/2013 8:00 AM 0.04 M M M M Cloudy, overcast and drizzle most of the day.
9/11/2013 8:00 AM 0.13 0.0 M 0.0 M Cloudy, overcast with low fog and clouds shrouding the mountains this morning. Light rain and drizzle throughout the night and morning. It looks and feels more like coastal Oregon than Colorado today. Temps have stayed right around the 50 degree mark most of the night and morning.
9/12/2013 8:00 AM 0.16 0.0 M 0.0 M Clouds and light rain throughout the entire day, finally letting up around 7:30 PM.
9/30/2013 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
2/23/2013 2/25/2013 8:00 AM 3 0.39 15.0 M Moderate to light snow showers on and off throughout the past 2 days Daily Stats over past 24 hours as of 08:00 from 9740' elevation WSW of Twin Lakes: High Temp: N/Aº; Low temp: minus 14.8º @ 05:35.



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