| 12/13/2025 | CO-LR-1234 | Fort Collins 1.2 SE |
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| Moderately dense freezing fog around 4 AM, apparently arctic airmass reached the area from the NE overnight. At obs time: few low clouds and thin upper layer (moon visible). Light frost / fog deposit on gauge outer surface and snowboard. Air temperature approx 27F. |
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| 12/13/2025 | CO-LR-40 | Loveland 1.5 N |
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| Much cooler day yesterday with mostly clear skies early, then some passing clouds during the afternoon. Mostly clear and chilly evening. Mostly clear and cold this morning. High yesterday 53°, low 26°. Currently mostly clear and 26°. |
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| 12/13/2025 | CO-YU-68 | Wray 4.2 NNE |
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| Cloudy, warm |
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| 12/13/2025 | CO-MT-64 | Montrose 4.5 SSE |
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| A very pleasant December day 12/13. More snow melt, leaving only smaller patches. 25 this AM. |
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| 12/13/2025 | CO-WE-606 | Milliken 1.0 ENE |
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| Moisture from -FZDZ FZFG overnight |
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| 12/13/2025 | CO-AD-100 | Thornton 2.1 N |
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| Thi: 64 @ 13:25
….. @ Obs:
50F.
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| 12/13/2025 | CO-AU-88 | Pagosa Springs 7.2 ENE |
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| Snow cover is spotty on south facing areas. Shaded areas are holding about 3 to 4 inches of snow. |
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| 12/13/2025 | CO-BO-57 | Nederland 5.8 E |
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| 45º; WNW to 18mph; scattered clouds. |
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| 12/13/2025 | CO-BO-67 | Boulder 4.7 E |
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| It cooled down to 30 overnight but jumped back to 51 by 0500. |
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| 12/13/2025 | CO-BO-290 | Lafayette 2.3 NW |
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| Temperature range: 35-58 |
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| 12/13/2025 | CO-BO-435 | Longmont 3.0 SW |
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| Warm breezy day yesterday and head for the next week. High 50s to low 60s. |
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| 12/13/2025 | CO-BO-596 | Boulder 1.9 SE |
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| 46. Light clouds. Light breeze. Red-breasted nuthatch “beeping.” I can hear my neighbor’s wind chimes. |
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| 12/13/2025 | CO-DG-176 | Highlands Ranch 0.6 SSE |
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| Light breeze from the north. Wispy clouds at sunrise A bit cooler and no moisture |
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| 12/13/2025 | CO-DG-361 | Highlands Ranch 3.2 SW |
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| Scattered clouds in the sky this morning. |
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| 12/13/2025 | CO-DG-376 | Lone Tree 1.8 NNW |
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| Warmer and dryer this morning with few clouds at observation time. Temp 45 Dew Point 8 Humidity 24% Baro Pressure 30.03. Variable, occasionally gusty N to SE winds overnight. 24 hr high 63 low 33. 1 egg. |
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| 12/13/2025 | CO-EG-21 | Vail 0.9 WNW |
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| Friday was another unusually warm day for December with the high temperature in the mid 40's. Our current temperature is 18 degrees with a mostly clear sky. There are enough clouds for a pink sunrise. Due to the low angle of the sun, our sunsets and sunrise colors are fabulous. |
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| 12/13/2025 | CO-EP-58 | Ivywild 0.6 E |
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| Cloudy yesterday with a high of 54 degrees, Broken thin cirrus now, calm and 41 deegrees. |
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| 12/13/2025 | CO-EP-194 | Colorado Springs 1.1 NE |
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| Temp - 41°F
Solar - Unkn
10 - 4381 kWh
11 - 9917 kWh |
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| 12/13/2025 | CO-EP-291 | Colorado Springs 8.2 SE |
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| just above freezing this morning |
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| 12/13/2025 | CO-EP-359 | Colorado Springs 7.2 ENE |
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| 42 degrees and partly cloudy with wind 10-15 mph from northwest. High today to be near 60. |
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| 12/13/2025 | CO-EP-362 | Colorado Springs 5.8 NNW |
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| Low overnt. temp. of 53F (!!!); 56F at or after mdnt. Partly to mostly cloudy & windy (w. 1% relative humidity according to my weather station) in the morning. More sun, less wind in the pm, w. a high of 63F. |
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| 12/13/2025 | CO-EP-371 | Peyton 8.5 WSW |
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| Chinook winds have been constant. Mountain wave clouds with standing lenticulars. Snowpack is nearly gone. |
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| 12/13/2025 | CO-EP-408 | Colorado Springs 8.0 NNE |
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| Bkn altostratus, thin, 6 oktas. Vis > 20 mi. Wind N 5 var 8 kts. Temp 51°F, DP 8°F. RH 17%. Baro 30.06" rising slowly. Yest LO 36°F, HI 51°F. |
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| 12/13/2025 | CO-GF-33 | Glenwood Springs 5.3 SSE |
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| high 54º low 19º presently 19º partly cloudy
Bar. 30.18 R |
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| 12/13/2025 | CO-GR-68 | Tabernash 2.7 NW |
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| 5.9 Hours of sunshine. Hi/low temperature 44°/28°F |
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| 12/13/2025 | CO-JF-554 | Arvada 6.6 WNW |
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| Windy! |
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| 12/13/2025 | CO-JF-573 | Conifer 1.8 SSE |
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| No new precip, partly cloudy cumulus skies, winds steady and gusting. |
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| 12/13/2025 | CO-LP-98 | Bayfield 6.2 N |
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| High 53, low 23, but dropped to 22 after observation time. |
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| 12/13/2025 | CO-LP-113 | Bayfield 5.2 N |
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| High yesterday 55 under clear skies and wind to 7 mph. Low thia a.m. 24 under clear skies. snowpack is less than 50% in open areas/ |
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| 12/13/2025 | CO-LP-139 | Bayfield 6.9 N |
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| High 50, Low 31. Mostly clear skies. |
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| 12/13/2025 | CO-LR-50 | Lyons 4.8 N |
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| Friday, mild, low 30F, high 53F, some clouds, mostly calm. This AM, low 33, partial thin overcast, calm. |
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| 12/13/2025 | CO-LR-255 | FCL |
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| Light freezing mist overnight with brief cold air mass intrusion from the NE. |
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| 12/13/2025 | CO-LR-676 | Loveland 2.4 NW |
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| Frost |
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| 12/13/2025 | CO-LR-1272 | Estes Park 1.7 SW |
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| Mostly clear sky 6mph wind, 45ºF.
Gauge B: (457-457)÷201 = 0.00"
Board A: 0.0 (466-459)÷201 = 0.00"
Pack: (0.0+0.0+0.0+0.0+0.0)÷5 = 0.0" T
SWE: (460-460)÷201 = 0.00" NA |
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| 12/13/2025 | CO-LR-1387 | Fort Collins 3.0 WNW |
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| Still light winds. Cooler but still warm for this time of year, to my memory. |
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| 12/13/2025 | CO-LG-49 | Sterling 1.5 S |
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| fog in the area |
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| 12/13/2025 | CO-MR-81 | Hillrose 2.5 SSW |
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| 27°F overnight low temperature. 64°F yesterday high temperature. |
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| 12/13/2025 | CO-OT-42 | La Junta 17.5 S |
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| 33 degrees clear calm and frosty. |
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| 12/13/2025 | CO-PK-67 | Guffey 5.5 W |
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| 50% or less snow coverage. |
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| 12/13/2025 | CO-PH-52 | Holyoke 3.4 SW |
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| Freezing Fog and Glaze |
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| 12/13/2025 | CO-PU-103 | Pueblo 4.7 SE |
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| partly cloudy, breezy and 47 degrees at 0700 |
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| 12/13/2025 | CO-RT-79 | Hayden 1.6 SW |
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| Hi mid-40s, lo ~20.
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| 12/13/2025 | CO-SJ-4 | Silverton 0.3 WSW |
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| Current temp 2. Yesterday high temp 45. |
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| 12/13/2025 | CO-SU-6 | Silverthorne 2.1 WSW |
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| 1213250700 As SCT 20+ mi 33º 28% RH Calm + W 28 kt Tmxmn 46 33º F AcL BKN SCT CLR. Depth 10.2 (7-14) inches melting sublimation |
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| 12/13/2025 | CO-WA-80 | Otis 5.7 W |
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| 7:00 a.m. Sat Dec 13th 28 Degrees, semi overcast w/light to heavy clouds, hard heavy icy frost, 3.3 mph SW wind. Fri Dec 12th saw High 64 Degrees overnight Low 26 Degrees, partly cloudy w/moderately strong SE winds and heavy dense fog by 7 p.m. into late evening hours.
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| 12/13/2025 | CO-WE-163 | Greeley 5.2 SW |
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| Fog this a.m. |
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| 12/13/2025 | CO-WE-589 | Greeley 1.3 E |
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| Clear skies but fog @ 5am. All clear now @ 7am. |
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| 12/13/2025 | CO-OR-2 | Ouray .23 NNW |
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| Sunny |
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| 12/13/2025 | CO-BO-343 | Jamestown 2.5 SSE |
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| Yesterday was windy again Gust to 33 High was 55F Rh 37% low last night was 46F Rh 18% now Fair and Breezy 46F RH 21% Winds Variable Pressure is 30.02 |
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| 12/13/2025 | CO-LR-687 | Loveland 2.7 E |
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| yesterday's high 52 F (11C). overnight low 30 F (-1C), ~ 4-5AM heavy fog rolling in, moon still visible, creating a heavy white frosty layer on roofs and vegetation! Now Fog gone, calm to breezy, sky mostly clear w/thin cloud layers at horizon to N,E, and S. RH 76%. |
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