Colorado Snow Day Calculator: Snow Day Chances Tomorrow by City
Most Coloradans live along the Front Range, where big upslope storms can drop a foot of snow and then melt off under strong sun within a day or two.
Mountain towns get far more snow but rarely close for it; along the Front Range, heavy wet storms and rush-hour timing drive most closures.
Forecast data may be out of date. We're working on it; check your local forecast too.
Colorado's largest city
Denver, CO
Friday
Unlikely
<1%
chance of a snow day
<1% chance of a delay
Monday
Unlikely
<1%
chance of a snow day
<1% chance of a delay
Overnight snow 0.0"Usually closes at 6"
- No meaningful snow or ice in the forecast for Friday morning.
- Denver usually needs about 6" to close schools (normal snowfall 49" a year).
Estimate, not official. Check your school district for the final decision.
Updated .
Colorado city snow day pages
Snow day chances by city in Colorado
Usually closes at about:under 2"2–4"4–6"6"+
Chance of a snow day and of a delay on the next school day for the largest Colorado towns we track, highest chance first. We cover 81 places in Colorado; enter your ZIP code above for any of them.
| Place | Snow day | Delay | Normal snow | Usually closes at |
|---|---|---|---|---|
| Denver | <1% | <1% | 49" | 6" |
| Colorado Springs | <1% | <1% | 58" | 6" |
| Aurora | <1% | <1% | 47" | 6" |
| Fort Collins | <1% | <1% | 50" | 6" |
| Lakewood | <1% | <1% | 67" | 7" |
| Thornton | <1% | <1% | 51" | 6" |
| Arvada | <1% | <1% | 64" | 7" |
| Westminster | <1% | <1% | 59" | 6" |
| Greeley | <1% | <1% | 36" | 5" |
| Pueblo | <1% | <1% | 23" | 3" |
| Centennial | <1% | <1% | 58" | 6" |
| Boulder | <1% | <1% | 89" | 8" |
| Longmont | <1% | <1% | 54" | 6" |
| Castle Rock | <1% | <1% | 63" | 7" |
| Loveland | <1% | <1% | 47" | 6" |
| Broomfield | <1% | <1% | 65" | 7" |
| Grand Junction | <1% | <1% | 18" | 3" |
| Commerce | <1% | <1% | 42" | 5" |
| Parker | <1% | <1% | 61" | 7" |
| Littleton | <1% | <1% | 49" | 6" |
| Brighton | <1% | <1% | 39" | 5" |
| Windsor | <1% | <1% | 48" | 6" |
| Erie | <1% | <1% | 63" | 7" |
| Wheat Ridge | <1% | <1% | 67" | 7" |
| Fountain | <1% | <1% | 50" | 6" |
| Evans | <1% | <1% | 36" | 5" |
| Montrose | <1% | <1% | 24" | 4" |
| Louisville | <1% | <1% | 70" | 7" |
| Johnstown | <1% | <1% | 42" | 5" |
| Golden | <1% | <1% | 99" | 8" |
| Durango | <1% | <1% | 68" | 7" |
| Firestone | <1% | <1% | 54" | 6" |
| Cañon | <1% | <1% | 41" | 5" |
| Castle Pines | <1% | <1% | 61" | 7" |
| Fruita | <1% | <1% | 22" | 3" |
| Steamboat Springs | <1% | <1% | 182" | 10" |
| Monument | <1% | <1% | 114" | 9" |
| Sterling | <1% | <1% | 35" | 5" |
| Wellington | <1% | <1% | 46" | 6" |
| Fort Morgan | <1% | <1% | 23" | 4" |
Chances are for Friday. Normal snow is the NOAA 1991–2020 annual average near each town.
How much snow closes school in Colorado?
Across Colorado's larger towns, normal snowfall runs from about 18" a year in Grand Junction to about 99" in Golden, so the amount it takes to close schools varies too: from roughly 3" to 8" of overnight snow in our model.
- Denver: about 49" of snow a year; usually closes at about 6".
- Colorado Springs: about 58" of snow a year; usually closes at about 6".
- Aurora: about 47" of snow a year; usually closes at about 6".
- Fort Collins: about 50" of snow a year; usually closes at about 6".
- Lakewood: about 67" of snow a year; usually closes at about 7".
- Thornton: about 51" of snow a year; usually closes at about 6".
Compare every state on our how much snow closes school map.
Winter weather alerts and forecaster notes in Colorado
No winter storm, ice or cold alerts from the National Weather Service cover the Colorado towns we track right now.
NWS Denver/Boulder CO · Key Messages
- Above normal temperatures and dry conditions will prevail through Friday, followed by more seasonable temperatures this weekend into next week.
- Chances for rain and snow showers across the high country this weekend, with a few showers possible over the eastern plains.
- A more active storm track next week?
Excerpt from the National Weather Service Denver/Boulder CO Area Forecast Discussion, issued Nov 12, 5:15 PM MST. Read the full discussion.
NWS Pueblo CO · Key Messages
- Mild and dry through Friday.
- Showers move into the area Friday Night through early Sunday. Expect accumulating snow over the mountains and rain showers over the plains.
- After a brief lull Sun-Mon, cooler and more active weather looks to set in the rest of next week.
Excerpt from the National Weather Service Pueblo CO Area Forecast Discussion, issued Nov 12, 4:43 PM MST. Read the full discussion.
Colorado's biggest snow days last winter (2025–26)
Source: NOAA GHCN-Daily, nearest reporting station to each city
Biggest single-day snowfalls in the 2025–26 winter at NOAA stations near Denver, Colorado Springs, Fort Collins, Grand Junction, Montrose:
| Date | Near | Snowfall |
|---|---|---|
| Thu, Jan 8, 2026 | Colorado Springs | 9.4" |
| Wed, Dec 3, 2025 | Fort Collins | 5.6" |
| Fri, Mar 6, 2026 | Denver | 5" |
| Fri, Mar 6, 2026 | Montrose | 5" |
| Wed, May 6, 2026 | Fort Collins | 4.8" |
| Wed, Dec 3, 2025 | Colorado Springs | 4.4" |
| Fri, Feb 13, 2026 | Montrose | 4" |
| Fri, Jan 9, 2026 | Colorado Springs | 3.9" |
Season totals: Denver 24.7" · Colorado Springs 26.3" · Fort Collins 17.6" · Grand Junction 7.4" · Montrose 23.9". Source: NOAA GHCN-Daily.
Largest Colorado school districts
These districts make the official call for schools around Colorado. Their websites post closings and delays first:
Snow days in nearby states
Colorado snow day FAQ
Will there be a snow day in Colorado tomorrow?
No town we track in Colorado has more than a 10% chance of a snow day on Friday right now. Enter your ZIP code at the top of this page for your own town; we track 81 places in Colorado.
How much snow does it take to close school in Colorado?
It varies across the state. Based on normal snowfall, our model puts the closing point at about 3" in Grand Junction and about 8" in Golden. Ice and dangerous cold can close schools with less snow.
What were Colorado's biggest snow days last winter?
Among the NOAA stations we checked, the biggest single-day snowfall in the 2025–26 winter was 9.4 inches near Colorado Springs on Jan 8, 2026.
Where are Colorado school closings announced?
Each district announces its own closings and delays on its website, app and text alerts, and local TV stations publish closing lists. Large districts include Denver Public Schools, Jeffco Public Schools, Douglas County School District.