Johnson County climate

Johnson County Weather in January

NOAA 1991-2020 normals for Billy Creek, 15.1 km from Johnson County

Average highs run from 39°F on January 1 to 38°F on January 31, and lows from 11°F to 13°F. Normal precipitation for the month is 0.33 in over about 5 wet days.

January day by day

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

Normal daily high and low temperature at Johnson County, in °F, with the record for each date.-40-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
39°F
Average low
12°F
Precipitation
0.33 in
Snowfall
5.0 in
Record high
67°FJan 26, 2015
Record low
-25°FJan 15, 2024
Chance of a freeze
100%
Daylight
8 h 58 min to 9 h 50 min
Cloud cover
65%
Humidity
67%
Dew point
17°F
Wind
11.4 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
Jan 139°F11°F53°F 2026-14°F 202215%15%
Jan 239°F11°F52°F 2012-7°F 201715%15%
Jan 339°F11°F61°F 2003-11°F 201715%15%
Jan 439°F11°F61°F 2020-14°F 200415%15%
Jan 539°F11°F63°F 2012-18°F 200415%15%
Jan 639°F11°F60°F 2006-11°F 201016%15%
Jan 739°F11°F63°F 2002-12°F 201016%15%
Jan 839°F11°F63°F 20022°F 201516%15%
Jan 939°F11°F56°F 2018-3°F 201516%15%
Jan 1039°F11°F57°F 2006-10°F 201116%15%
Jan 1139°F11°F59°F 2026-12°F 201116%15%
Jan 1239°F12°F63°F 2010-23°F 202416%15%
Jan 1339°F12°F64°F 2021-13°F 200516%15%
Jan 1439°F12°F59°F 2006-22°F 202416%15%
Jan 1539°F12°F55°F 2026-25°F 202416%15%
Jan 1639°F12°F60°F 2010-13°F 202416%15%
Jan 1739°F12°F52°F 2022-7°F 201216%15%
Jan 1839°F12°F63°F 2018-7°F 202416%15%
Jan 1939°F12°F59°F 2005-9°F 202516%15%
Jan 2039°F12°F63°F 2005-13°F 202516%15%
Jan 2139°F12°F57°F 2009-14°F 200816%15%
Jan 2239°F12°F55°F 2005-9°F 200816%15%
Jan 2339°F12°F63°F 2005-11°F 202616%15%
Jan 2439°F12°F64°F 2005-11°F 202616%15%
Jan 2539°F12°F66°F 2006-9°F 202616%15%
Jan 2639°F13°F67°F 2015-12°F 200916%15%
Jan 2739°F13°F67°F 2015-9°F 200916%15%
Jan 2838°F13°F56°F 2016-12°F 200416%15%
Jan 2938°F13°F55°F 2024-9°F 200816%15%
Jan 3038°F13°F61°F 2024-4°F 201316%15%
Jan 3138°F13°F64°F 2024-15°F 201116%15%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Johnson County, 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).

January 1
sunrise 7:41 AM, sunset 4:39 PM
January 31
sunrise 7:25 AM, sunset 5:15 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00480740 (Billy Creek), public domain. Records: NOAA GHCN-Daily, station USW00094054, 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.