| 12/20/2025 | CO-LR-1234 | Fort Collins 1.2 SE |
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| At obs time: Scattered mid to low clouds; possibly higher layers too. (Still dark.) Air temperature approx 51F. Surface winds still from the west; wind speed light. |
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| 12/20/2025 | CO-LR-40 | Loveland 1.5 N |
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| Very warm day yesterday with mostly cloudy skies early, then periods of strong winds followed by breezy periods all day long. Cleared up late morning through the afternoon. Mostly clear and breezy evening. Cloudy and mild this morning. High yesterday 70°, low 43°. Currently cloudy and 43°. |
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| 12/20/2025 | CO-YU-68 | Wray 4.2 NNE |
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| Warmer temps |
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| 12/20/2025 | CO-MT-64 | Montrose 4.5 SSE |
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| Day warmed up nicely. Still quite warm this AM at 46. Must have a change in the weather coming. Maybe the end of the week |
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| 12/20/2025 | CO-LR-1387 | Fort Collins 3.0 WNW |
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| WIND: Quiet all day until strong gusts 3:15-4pm, then relatively calm again until it seemed light a switch was turned on at 8pm with steady, strong winds with gusts especially til about 11pm, then just steady winds through about 4am, then fairly calm. RAIN: The anticipated early morning rain has not as yet materialized. Perhaps later this morning. Still unseasonal warmth as of now. |
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| 12/20/2025 | CO-LP-132 | Durango 2.7 NNE |
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| 28 degrees A few scattered clouds |
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| 12/20/2025 | CO-AD-100 | Thornton 2.1 N |
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| Thi: 73 @ 14:40
….. @ Obs: 37F. Overnight gust 31 mph @ 01:15.
/// Fri : Peak gusts: 39 mph W @ 08:15. 41 mph W @ 20:55.
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| 12/20/2025 | CO-BO-4 | Boulder 2.9 S |
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| More wind damage yesterday. 106 mph NCAR Mesa Lab |
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| 12/20/2025 | CO-BO-8 | Lafayette 0.4 WSW |
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| Windy 0215-1040, pk gust at 0940. (My Davis anemometer is poorly sited, and gusts hit about 50%. 31 mph is a good one.) WSHFT W->NE 1100 but no temp drop. Back to SW 1400. Ocnl gusts aftn. 38F/72F |
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| 12/20/2025 | CO-BO-57 | Nederland 5.8 E |
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| 43º; W to 9mph; overcast; winds dying; dry!! |
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| 12/20/2025 | CO-BO-220 | Boulder 4.7 ENE |
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| peak wind 50 MPH 11:27 AM; windy and very dry. |
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| 12/20/2025 | CO-BO-290 | Lafayette 2.3 NW |
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| Temperure range: 38-69 High winds in the afternoon and evening into the night. Up to 100 mph close to the mountains. |
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| 12/20/2025 | CO-BO-322 | Nederland 0.4 WNW |
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| Power issues since Wed. Got a generator running yesterday |
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| 12/20/2025 | CO-BO-343 | Jamestown 2.5 SSE |
T
| Yesterday the winds were higher than previous days. High was 62F Rh 18% Last night we a trace of rain low was 37F Rh 70% now 37F Rh 70% Winds SW 1 gust to 2 pressure is 29.89 |
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| 12/20/2025 | CO-BO-380 | Boulder 2.0 W |
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| Very windy yesterday. Power was out all day yesterday and came back on at about 10am. Solar panel blew off of the roof. |
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| 12/20/2025 | CO-BO-435 | Longmont 3.0 SW |
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| Friday - cloudy til mid aft when sun appeared. Wild windy day again - gusts at least to 75 mph but likely more. Just miles from here in Boulder at NCAR gusts reported at 112 mph. Around 1230-1 pm the dust was so thick and swirling it reminded me dust storms/sandstorms in Morocco. Warm temps to 70. Buried lines in our community saved us again. Just a few miles south in N Boulder friends have no power and expect none til 10 pm tonight. Trees and light standards down. Today 55 at 6 am with high about the same, cloudy and chance of rain. Rest of the week 60s. Time to give the trees etc a Dec. drink. |
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| 12/20/2025 | CO-BO-457 | Boulder 0.7 ENE |
NA
| Light rain / popcorn snow at time of observation
Gauge blow over in wind - no measurement |
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| 12/20/2025 | CO-BO-547 | Boulder 1.7 N |
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| Light grapuel |
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| 12/20/2025 | CO-BO-596 | Boulder 1.9 SE |
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| 36F. Cloudy. Calm. No generators. Birds. |
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| 12/20/2025 | CO-BO-618 | Boulder 2.7 NNW |
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| A few flakes of snow just starting to fall before ob time |
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| 12/20/2025 | CO-CS-31 | Fort Garland 13.3 E |
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| Windy again. Wind gusted to 64.6MPH overnight. |
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| 12/20/2025 | CO-CS-32 | Fort Garland 12.9 ENE |
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| Top wind gust, 54.8 mph. |
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| 12/20/2025 | CO-DG-176 | Highlands Ranch 0.6 SSE |
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| Some strong wind gusts last night Currently cloudy with a breeze. No moisture and mild. |
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| 12/20/2025 | CO-DG-376 | Lone Tree 1.8 NNW |
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| Warmer with high, thin overcast at observation time. Temp 51 Dew Point Humidity 24% Baro Pressure 29.93 Wind shift at 17.00 from ESE to NNW and gusty. Wind shift 06.45 from NNW to ESE with temp drop and baro pressure increase. 24 hr high 70 low 41. 3 eggs. |
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| 12/20/2025 | CO-EG-21 | Vail 0.9 WNW |
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| Friday was again unusually warm and dry for December. Our high temperature was in the upper 40's. It did not cool off during the night. It is currently 39 degrees with a cloudy sky. This is my 54th winter in Vail and I never remember such warm temperatures, especially at night. Bring on Winter!! |
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| 12/20/2025 | CO-EP-58 | Ivywild 0.6 E |
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| Partly cloudy and reaching 66 degrees yesterday and occasionally breezy. Broken altostratus this morning mainly to the N, calm, and 53 degrees. |
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| 12/20/2025 | CO-EP-194 | Colorado Springs 1.1 NE |
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| Temp - 55°F
Solar - Unkn
10 - 4394 kWh
11 - 10034 kWh |
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| 12/20/2025 | CO-EP-291 | Colorado Springs 8.2 SE |
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| It was 50 degrees at 6:30 this morning. No ice, no frost. I have had the rain tube back in gauge for a week or more. |
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| 12/20/2025 | CO-EP-359 | Colorado Springs 7.2 ENE |
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| 46 degrees and partly cloudy with wind 10-15 mph expected to. High today in mid 50s. Yesterday the high was 71 |
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| 12/20/2025 | CO-EP-362 | Colorado Springs 5.8 NNW |
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| Low overnt. temp. of 53F at 6:30am (which turned out to be the daytime high... 59F at mdnt, 55F at 5:45am); partly to mostly cloudy, w. an easterly breeze picking up late am & cooling things down from then to the daytime low of 42F at 4:45pm. |
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| 12/20/2025 | CO-EP-371 | Peyton 8.5 WSW |
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| Breezy warm conditions yesterday. Westerly winds this morning with a temperature of 45F. |
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| 12/20/2025 | CO-EP-408 | Colorado Springs 8.0 NNE |
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| Stratus on all horizons, 2 oktas. Clear above. Vis > 20 mi. Wind WSW 3 kts. Temp 52°F, DP 23°F. RH 32%. Baro 29,91" rising rapidly. Yest LO 27°F, HI 70°F. |
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| 12/20/2025 | CO-EP-418 | Palmer Lake 0.3 W |
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| 68 degrees. 68! Had the windows in the house wide open into the evening. |
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| 12/20/2025 | CO-GF-33 | Glenwood Springs 5.3 SSE |
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| high 53º low 26º presently 35º mostly cloudy
Bar. 29.72 S |
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| 12/20/2025 | CO-GF-40 | Glenwood Springs 1.7 NW |
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| we need moisture - I'd even settle for rain;
still a small amount of snow in the shady areas |
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| 12/20/2025 | CO-GL-17 | Rollinsville 1.1 SSW |
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| Overnight snow |
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| 12/20/2025 | CO-GR-68 | Tabernash 2.7 NW |
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| 4.4 Hours of sunshine. Hi/low temperature 50°/36°F. Saw a few snowflakes this morning. |
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| 12/20/2025 | CO-GN-18 | Crested Butte 6.2 N |
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| Friday was the 5th record high temperature in the past 9 days over a 52 year period |
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| 12/20/2025 | CO-JK-36 | Walden 0.2 S |
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| 32F currently, the snow which is falling has an exceptionally high moisture content. |
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| 12/20/2025 | CO-JF-179 | Lakewood 2.2 ESE |
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| new "Oficial" record temp set yesterday 69 deg
high wind events still plague us - over 100k still in the dark |
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| 12/20/2025 | CO-JF-331 | Golden 12.5 NW |
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| 39F mostly cloudy, light wind. Still no power, cleanup continues. |
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| 12/20/2025 | CO-JF-554 | Arvada 6.6 WNW |
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| Wind wind wind |
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| 12/20/2025 | CO-JF-609 | Morrison 5.6 SSW |
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| Power is out again from high winds yesterday. |
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| 12/20/2025 | CO-LP-26 | Hesperus 13.3 SSW |
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| Nice day, breezy, mostly sunny 55º, 30º current 34º |
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| 12/20/2025 | CO-LP-113 | Bayfield 5.2 N |
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| High yesterday 54 under mostly clear skies with winds to 9 mph. Low this a.m. 24 under mostly clear skies with scattered cirrus. |
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| 12/20/2025 | CO-LR-142 | WEL 1.8 NE |
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| It started to snow about 8:15 AM. It is still snowing and things are beginning to turn white. At the moment the temp is 30 deg F. |
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| 12/20/2025 | CO-LR-259 | FCL 2.5 W |
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| Little bit of moisture in 4" gage with funnel/inner tube. Don't know when it fell, but there were several periods of radar echos drifting over the area from the mountains. |
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| 12/20/2025 | CO-LR-1109 | Loveland 2.8 WNW |
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| "only" a 66 mph wind gust yesterday on my Davis Vantage Pro2 anemometer |
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| 12/20/2025 | CO-LR-1182 | Fort Collins 2.2 WNW |
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| A very light mist, not fog or cloud, falling about 0630 MST this morning. |
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| 12/20/2025 | CO-LR-1272 | Estes Park 1.7 SW |
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| Relief from the high winds. Some snowpack still holding on. Overcast sky 2mph wind, 38ºF.
Gauge C: (455-455)÷201 = 0.00"
Board A: 0.0 (459-459)÷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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