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Weather extremes

How extreme does Aspen's weather get?

The hottest, coldest, wettest and snowiest days Aspen has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 46 years of daily weather observations (1980–present), from the Aspen 1Sw station 2 km away. Updated through April 2026 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Aspen has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
92°F Jul 1, 1983

That is about 14°F hotter than a normal July afternoon in Aspen (typical high near 78°F).

The three most extreme on record

1 92°F Jul 1, 1983
2 91°F Jul 6, 1989
3 90°F Jul 4, 1989
❄️ Coldest night
-25°F Feb 7, 1989

About 37°F colder than a normal February night in Aspen (typical low near 12°F).

The three most extreme on record

1 -25°F Feb 7, 1989
2 -24°F Feb 1, 1985
3 -24°F Feb 6, 1989
🌧️ Most rain in one day
2.35 in Jun 7, 1984

More rain in a single day than Aspen usually gets in the whole month of June (typical June total about 1.1 in).

The three most extreme on record

1 2.35 in Jun 7, 1984
2 2.20 in Jan 31, 2014
3 1.92 in Feb 21, 1996
Most snow in one day
21.8 in Feb 21, 1996

About 76% of a typical February's snow in a single day (Aspen averages roughly 29 in across the month).

The three most extreme on record

1 21.8 in Feb 21, 1996
2 20.0 in Jan 31, 2014
3 17.0 in Nov 27, 2024

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-50°-30°-10°10°30°50°70°90°110° all-time high 92°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Aspen's record heat sits well above even a hot day for the season — July's 92°F is about 14°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Aspen's warmest days reach the high 70s°F and its coldest nights drop to the low 10s°F. But across the record it has gone as high as 92°F and as low as −25°F. A single day has delivered over 2 inches of rain or close to 22 inches of snow. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Aspen 1sw, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →