| 3/11/2026 | CO-DG-218 | The Pinery 1.2 ESE |
0.01
| Correcting the report after a bit of light - snow fell and covered the roof tops and grassy areas right before daylight. Cooler at 27 degrees this morning, only a trace of snow remains from the snowstorm 5 days ago. |
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| 3/11/2026 | CO-JF-504 | Arvada 3.6 WSW |
0.04
| The snowboard snow had partly melted and refrozen. Had to chip the sample and may have missed some. |
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| 3/11/2026 | CO-LR-40 | Loveland 1.5 N |
0.10
| Cooler day yesterday with cold air staying around for the morning, then a slow warmup in the afternoon with sunny skies. Clouds rolled in around sunset and rain began late evening, eventually changing over to snow. Clear and cold this morning. High yesterday 58°, low 28°. Currently clear and 28°. |
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| 3/11/2026 | CO-LR-767 | Estes Park 1.8 S |
0.09
| 23 degrees F, starry, and breezy at 6 am, 7950' elevation. 1.3" new snow (icy base) on glass tabletop. Similarly icy at base of gauge catch. |
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| 3/11/2026 | CO-YU-68 | Wray 4.2 NNE |
T
| Windy with a few sprinkles overnight. |
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| 3/11/2026 | CO-JF-72 | Broomfield 2.3 SSW |
0.02
| Not snowing at 0607 obsv time. Another windy morning. |
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| 3/11/2026 | CO-LP-113 | Bayfield 5.2 N |
0.00
| High yesterday 63 under clear skies in the a.m. then cumulus ubuild up in the afternoon with wind to 25 mph. Low this a.m. 30 under car skies and warming rapidly before dawn. |
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| 3/11/2026 | CO-MT-64 | Montrose 4.5 SSE |
0.00
| a very nice warm day, slight breeze. Many of older trees, cottonwoods, elms are showing budding. Snow is gone, except in a few isolated protected areas. Grass is really greening up 30 this AM. |
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| 3/11/2026 | CO-JF-201 | Littleton 8.2 WSW |
0.03
| Snow only stuck on non-paved surfaces; A bit was melted/frozen to the snow board so the Swe might be undervalued by ~ 0.01 which didn't come off with the core |
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| 3/11/2026 | CO-BO-571 | Longmont 3.1 WSW |
0.10
| Rain started at around 11pm last night and turned to snow at sometime overnight. Then froze. A layer of ice in the gauge this morning. |
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| 3/11/2026 | CO-LR-1387 | Fort Collins 3.0 WNW |
0.06
| RAIN starts at 9pm (.03” in small tube) )turning to SNOW around 10:15pm (another .03” melted this morning from large tube), wet sparse flakes, unsure how long it lasted. Board measured 0.1” ice this morning, just a dusting remaining on 30-40% of grassy surfaces. |
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| 3/11/2026 | CO-AD-100 | Thornton 2.1 N |
0.01
| Thi: 64 @ 14:44
….. @ Obs 27F, overnight precip 0.01 ( at approx. 01:15 per Davis Van Vue.)
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| 3/11/2026 | CO-AD-120 | Brighton 2.1 NNW |
0.03
| Light rain off and on last night. |
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| 3/11/2026 | CO-AR-85 | Centennial 5.5 E |
0.02
| light dusting of snow ..... |
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| 3/11/2026 | CO-AR-262 | Aurora 2.1 W |
0.02
| Sunny & warm day, high temp of 70. Rain overnight? Or snow? A little frozen water in gauge. At 7AM today: sunny & 26F. |
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| 3/11/2026 | CO-AR-413 | Denver 5.0 SSE |
0.00
| Misty conditions this morning but no trace of accumulation in gauge. |
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| 3/11/2026 | CO-AU-37 | Pagosa Springs 5.8 SSE |
0.00
| Just a small patch of icy snow in shaded spot. |
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| 3/11/2026 | CO-AU-88 | Pagosa Springs 7.2 ENE |
0.00
| Some snowpack remaining on North facing slopes and in shaded areas. Snow pack depth where it remains is up to 3”. |
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| 3/11/2026 | CO-BO-8 | Lafayette 0.4 WSW |
0.07
| Wave cloud, then Ci ovc early am. Mo cldy. Temp above 50F at 0800, WSHFT to N dropped temp to min at 0855. RW-- late evening, S- ca 2330 with 0.4" as of 0045. S-R- continued until 0250, then mo clr. Most snow melted by obs time except on roofs and decks. 40F/63F/34F |
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| 3/11/2026 | CO-BO-57 | Nederland 5.8 E |
0.14
| 24º; SE to 12mph; broken clouds. Gauge catch yielded 0.13" SWE. |
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| 3/11/2026 | CO-BO-67 | Boulder 4.7 E |
0.05
| Precip began ~2200, possibly as rain but soon changed to big snow flakes that became S by 2300. Accumulated to ~0.2" by midnight, then snow cover decreased as snow lightened to S- and temp was above freezing. Still S- at 0300 but cleared by 0500. |
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| 3/11/2026 | CO-BO-220 | Boulder 4.7 ENE |
0.07
| Solid ice in the cylinder, and on rock surfaces; finely patchy snow on roofs, grass and mulch surfaces. |
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| 3/11/2026 | CO-BO-266 | Lafayette 0.8 WSW |
0.06
| I am estimating the snow fall based on the amount accumulated in colder areas and on colder surfaces. |
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| 3/11/2026 | CO-BO-286 | Boulder 3.5 S |
0.10
| No one home to report today so this report is based on surrounding observations |
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| 3/11/2026 | CO-BO-290 | Lafayette 2.3 NW |
0.06
| Temperature range: 33-66 Drizzle and snow furries in the early morning. |
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| 3/11/2026 | CO-BO-435 | Longmont 3.0 SW |
T
| Tuesday - started sunny but clouds developed and held temp cooler until late afternoon around 67. This morning chilly at 30 degrees and very light dusting of now on ground and deck. Should be a sunny day with lower temp of 53. Winds predicted with gusts to 24 mph. Then two days of low 70s (tomorrow a high wind alert with gusts to 44 mph) and a front on Saturday with chance of snow and much cooler temp. Trees budded and birds (eg jays and doves) mating. |
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| 3/11/2026 | CO-BO-437 | Boulder 2.1 W |
0.09
| Rain mixed w a small amount of snow yesterday evening, starting at about 9pm. Currently we have clear skies and it’s 29°F. |
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| 3/11/2026 | CO-BO-468 | Louisville 1.6 NNE |
0.06
| >80% of ground has coverage of 0.1” |
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| 3/11/2026 | CO-BO-476 | Boulder 2.9 ESE |
0.05
| snow on the grass |
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| 3/11/2026 | CO-BO-479 | Niwot 1.0 NNE |
T
| light dusting of snow on grass |
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| 3/11/2026 | CO-BO-521 | Boulder 1.4 W |
0.06
| Mix rain and snow |
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| 3/11/2026 | CO-BO-593 | Longmont 2.3 ENE |
0.11
| Noted some light rain near 10 PM, but woke up to light snow on the ground. Given the water/ice combo in the catch gauge, the precip must have mostly been rain. |
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| 3/11/2026 | CO-BO-596 | Boulder 1.9 SE |
0.09
| Trace of snow on the ground. Mostly clear. Calm (for now). 30 F. Birds singing. |
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| 3/11/2026 | CO-BO-607 | Longmont 2.2 NE |
0.10
| Snow overnight starting around 10:30 PM. By morning snow on snowboard had melted into slush and then frozen solid, so no snowfall accumulation or SWE core could be taken. A dusting of snow remains on grassy areas but not enough to take a meaningful Snowpack measurement. There was no snow on the ground before the storm. Clear sky and 29°F at observation time. |
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| 3/11/2026 | CO-BO-613 | Boulder 7.4 NNW |
0.25
| Snow! |
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| 3/11/2026 | CO-BR-54 | Broomfield 2.4 ESE |
0.01
| Snow showers from roughly 11:30pm–midnight. Nothing on the board (it was 38°F as it snowed), a little snow on our patio furniture. |
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| 3/11/2026 | CO-CF-65 | Buena Vista 2.0 ESE |
0.00
| Partly cloudy, moderate winds, barometer rising and 34 degrees F at report time. |
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| 3/11/2026 | CO-CC-2 | Evergreen 5 W |
0.11
| P |
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| 3/11/2026 | CO-CR-18 | Ordway 3.5 W |
0.00
| Partly cloudy, breezy and very warm Tuesday. Cloudy with a N24mph/36mph gusts wind this morning. |
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| 3/11/2026 | CO-DG-176 | Highlands Ranch 0.6 SSE |
0.01
| Ice on deck and steps. Heavy frost on rooftops. Skies cloudy. Maybe thunder snow? Heard rumbling in the night. Ice in tube. Feels like snow on fence top. None on ground. |
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| 3/11/2026 | CO-DG-228 | Sedalia 3.5 SSE |
T
| It happened overnight, so I don't know if rain or snow. |
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| 3/11/2026 | CO-DG-347 | Castle Rock 0.8 N |
T
| Light snow flurry overnight. Not enough to be measurable on the snowboard. |
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| 3/11/2026 | CO-DG-376 | Lone Tree 1.8 NNW |
0.00
| More seasonal this morning under clear skies. Temp 25 Dew Point 17 Humidity 72% Baro Press 30.20 High 73 Low 25. 2 eggs Only a trace of snow left in the shady spots. |
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| 3/11/2026 | CO-EG-21 | Vail 0.9 WNW |
0.02
| Tuesday was mostly sunny and very warm with the high temperature in the low 50's. Clouds moved in later in the afternoon and evening. It was very windy all day. Our current temperature is 23 degrees with light snow falling and it is calm. |
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| 3/11/2026 | CO-EP-58 | Ivywild 0.6 E |
0.00
| Sunny yesterday with a high of 67 degrees. Cloudy sky this morning, calm, and 37 degrees. |
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| 3/11/2026 | CO-EP-271 | Black Forest 4.7 WSW |
T
| A very light dusting of snow, not enough to measure |
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| 3/11/2026 | CO-EP-291 | Colorado Springs 8.2 SE |
0.00
| 34 degrees morning low and still dropping, and still dry, despite low clouds |
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| 3/11/2026 | CO-EP-396 | Black Forest 3.8 W |
T
| Strong FROPA 9pm, Snow showers early morning. |
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| 3/11/2026 | CO-EP-408 | Colorado Springs 8.0 NNE |
0.00
| Ovc, stratus. BINOVC south. Vis > 20 mi. Lower west, mtn tops obsc, stratus. Wind NNE 7 G 16 kts. Temp 29°F, DP 21°F. RH 73%. Baro 30.17" rising rapidly. Peak wind during FROPA 26 kts @ 2115 lcl. Yest LO 33°F @ 2400 lcl, HI 72°F @ 1430 lcl. |
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| 3/11/2026 | CO-GF-33 | Glenwood Springs 5.3 SSE |
0.00
| high 65º low 26º presently 35º partly cloudy
Bar. 29.92 R rapidly |
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