Johnson Siding climate

Johnson Siding Weather in December

NOAA 1991-2020 normals for Johnson Siding, 0.3 km from Johnson Siding

Average highs run from 42°F on December 1 to 39°F on December 31, and lows from 16°F to 12°F. Normal precipitation for the month is 0.45 in over about 3 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 Johnson Siding, in °F, with the record for each date.-50-250255075100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
40°F
Average low
14°F
Precipitation
0.45 in
Snowfall
5.4 in
Record high
75°FDec 2, 2021
Record low
-30°FDec 30, 1990
Chance of a freeze
100%
Daylight
9 h 08 min to 8 h 56 min
Cloud cover
64%
Humidity
74%
Dew point
15°F
Wind
7.8 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 142°F16°F74°F 2021-14°F 198510%15%
Dec 241°F16°F75°F 2021-19°F 198510%15%
Dec 341°F16°F68°F 1948-6°F 200610%15%
Dec 441°F16°F75°F 1965-5°F 197210%15%
Dec 541°F15°F67°F 1987-22°F 197210%15%
Dec 640°F15°F65°F 1981-20°F 197210%15%
Dec 740°F15°F69°F 1984-14°F 201310%15%
Dec 840°F15°F68°F 2020-23°F 197210%15%
Dec 940°F14°F70°F 1957-19°F 197210%15%
Dec 1040°F14°F68°F 1987-14°F 197210%15%
Dec 1139°F14°F71°F 2014-19°F 200010%15%
Dec 1239°F14°F71°F 2014-19°F 200011%16%
Dec 1339°F14°F65°F 1988-15°F 198511%16%
Dec 1439°F14°F70°F 1998-25°F 198911%16%
Dec 1539°F13°F64°F 2025-22°F 198911%16%
Dec 1639°F13°F67°F 2025-20°F 196411%16%
Dec 1739°F13°F69°F 1998-23°F 196411%16%
Dec 1839°F13°F70°F 1979-20°F 198311%16%
Dec 1939°F13°F62°F 2025-17°F 199012%16%
Dec 2039°F13°F63°F 1954-20°F 198312%17%
Dec 2139°F13°F65°F 1991-25°F 198312%17%
Dec 2239°F13°F67°F 2020-29°F 198912%17%
Dec 2339°F13°F66°F 1955-27°F 198312%17%
Dec 2439°F13°F63°F 2025-26°F 198312%17%
Dec 2539°F13°F71°F 2025-21°F 198312%17%
Dec 2639°F12°F64°F 2025-23°F 199613%17%
Dec 2739°F12°F60°F 2025-12°F 201713%17%
Dec 2839°F12°F62°F 1999-17°F 199013%17%
Dec 2939°F12°F65°F 1965-29°F 199013%18%
Dec 3039°F12°F60°F 1965-30°F 199013%18%
Dec 3139°F12°F62°F 1963-21°F 201713%18%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Johnson Siding, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MST).

December 1
sunrise 7:09 AM, sunset 4:17 PM
December 31
sunrise 7:29 AM, sunset 4:25 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00394343 (Johnson Siding), public domain. Records: NOAA GHCN-Daily, station USW00024090, 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.