Basalt climate

Basalt Weather in December

NOAA 1991-2020 normals for Aspen Pitkin CO AP, 21.5 km from Basalt

Average highs run from 38°F on December 1 to 33°F on December 31, and lows from 13°F to 8°F. Normal precipitation for the month is 0.82 in over about 11 wet days.

December day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Basalt, in °F, with the record for each date.-40-200204060151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
34°F
Average low
9°F
Precipitation
0.82 in
Snowfall
27.5 in
Record high
59°FDec 1, 1998
Record low
-21°FDec 8, 2005
Chance of a freeze
100%
Daylight
9 h 36 min to 9 h 27 min
Cloud cover
59%
Humidity
85%
Dew point
11°F
Wind
5.4 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 138°F13°F59°F 1998-6°F 200432%33%
Dec 237°F12°F57°F 2021-7°F 200432%33%
Dec 337°F12°F55°F 2017-10°F 200632%33%
Dec 437°F12°F54°F 1998-9°F 200932%34%
Dec 536°F11°F52°F 2012-19°F 201333%34%
Dec 636°F11°F53°F 2003-12°F 201333%34%
Dec 736°F11°F48°F 2020-15°F 200533%34%
Dec 835°F11°F48°F 2015-21°F 200533%35%
Dec 935°F10°F49°F 2014-13°F 200933%35%
Dec 1035°F10°F54°F 2015-14°F 201334%35%
Dec 1135°F10°F52°F 2017-8°F 200934%35%
Dec 1234°F9°F52°F 2017-2°F 201334%36%
Dec 1334°F9°F50°F 2014-7°F 200134%36%
Dec 1434°F9°F51°F 2021-10°F 200834%36%
Dec 1534°F9°F49°F 2016-16°F 200834%36%
Dec 1634°F9°F46°F 2024-9°F 202235%37%
Dec 1734°F8°F50°F 2025-12°F 202235%37%
Dec 1833°F8°F46°F 1998-9°F 201635%37%
Dec 1933°F8°F57°F 2025-9°F 201635%37%
Dec 2033°F8°F51°F 2017-14°F 201235%37%
Dec 2133°F8°F56°F 2025-16°F 199835%37%
Dec 2233°F8°F59°F 2025-16°F 199835%37%
Dec 2333°F8°F53°F 2025-10°F 200435%38%
Dec 2433°F8°F57°F 2025-10°F 200435%38%
Dec 2533°F8°F51°F 2025-5°F 202335%38%
Dec 2633°F8°F50°F 2025-8°F 200735%38%
Dec 2733°F8°F47°F 2022-10°F 200834%38%
Dec 2833°F8°F44°F 2017-13°F 200734%38%
Dec 2933°F8°F50°F 2017-12°F 201234%38%
Dec 3033°F8°F49°F 2011-9°F 201934%38%
Dec 3133°F8°F55°F 2005-11°F 201034%38%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Basalt, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MST).

December 1
sunrise 7:09 AM, sunset 4:45 PM
December 31
sunrise 7:28 AM, sunset 4:55 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093073 (Aspen Pitkin CO AP), public domain. Records: NOAA GHCN-Daily, station USW00093073, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.