Fremont County climate

Fremont County Weather in December

NOAA 1991-2020 normals for Ashton 1N, 17.7 km from Fremont County

Average highs run from 32°F on December 1 to 28°F on December 31, and lows from 18°F to 13°F. Normal precipitation for the month is 2.26 in over about 10 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 Fremont County, in °F, with the record for each date.-40-200204060151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
29°F
Average low
15°F
Precipitation
2.26 in
Snowfall
20.2 in
Record high
54°FDec 9, 2015
Record low
-22°FDec 21, 1998
Chance of a freeze
100%
Daylight
9 h 06 min to 8 h 56 min
Cloud cover
68%
Humidity
94%
Dew point
13°F
Wind
6.7 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 132°F18°F52°F 20123°F 201530%25%
Dec 232°F17°F52°F 2021-5°F 200930%25%
Dec 332°F17°F52°F 1998-6°F 200930%26%
Dec 431°F17°F51°F 2021-4°F 200931%26%
Dec 531°F17°F49°F 2021-6°F 201831%27%
Dec 631°F16°F49°F 2023-6°F 200531%27%
Dec 730°F16°F44°F 2003-14°F 200531%27%
Dec 830°F16°F46°F 2006-14°F 200531%28%
Dec 930°F16°F54°F 2015-6°F 200531%28%
Dec 1030°F15°F52°F 2025-15°F 200931%28%
Dec 1129°F15°F52°F 2025-11°F 200932%28%
Dec 1229°F15°F47°F 20250°F 200532%28%
Dec 1329°F15°F47°F 2025-3°F 202032%29%
Dec 1429°F15°F50°F 2002-4°F 200832%29%
Dec 1529°F14°F48°F 2025-4°F 200132%29%
Dec 1629°F14°F53°F 2025-5°F 201632%29%
Dec 1729°F14°F54°F 2025-18°F 201632%29%
Dec 1828°F14°F40°F 2024-7°F 200532%29%
Dec 1928°F14°F47°F 2023-11°F 201631%29%
Dec 2028°F14°F45°F 2023-14°F 199831%29%
Dec 2128°F14°F45°F 2023-22°F 199831%29%
Dec 2228°F13°F48°F 2025-15°F 199831%29%
Dec 2328°F13°F49°F 2025-17°F 199831%28%
Dec 2428°F13°F53°F 2025-10°F 200131%28%
Dec 2528°F13°F53°F 2025-11°F 200131%28%
Dec 2628°F13°F47°F 2025-12°F 200131%28%
Dec 2728°F13°F45°F 2004-16°F 201531%28%
Dec 2828°F13°F44°F 2002-8°F 201531%28%
Dec 2928°F13°F49°F 2011-9°F 201531%28%
Dec 3028°F13°F49°F 2011-8°F 201531%28%
Dec 3128°F13°F40°F 2005-20°F 201431%27%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Fremont County, 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 7:42 AM, sunset 4:48 PM
December 31
sunrise 8:01 AM, sunset 4:57 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00100470 (Ashton 1N), public domain. Records: NOAA GHCN-Daily, station USW00094194, 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.