Jefferson County climate

Jefferson County Weather in January

NOAA 1991-2020 normals for Jefferson Wwtp, 3.8 km from Jefferson County

Average highs run from 28°F on January 1 to 27°F on January 31, and lows from 14°F to 11°F. Normal precipitation for the month is 1.64 in over about 11 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 Jefferson 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
27°F
Average low
11°F
Precipitation
1.64 in
Snowfall
10.7 in
Record high
60°FJan 26, 1944
Record low
-31°FJan 15, 1963
Chance of a freeze
100%
Daylight
9 h 04 min to 9 h 56 min
Cloud cover
66%
Humidity
89%
Dew point
15°F
Wind
12.3 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 128°F14°F56°F 1897-15°F 196934%20%
Jan 228°F13°F54°F 1897-19°F 197934%20%
Jan 328°F13°F55°F 1897-19°F 190434%20%
Jan 427°F13°F52°F 1998-24°F 191934%20%
Jan 527°F13°F49°F 2007-23°F 192434%20%
Jan 627°F12°F49°F 1946-24°F 190934%20%
Jan 727°F12°F47°F 2008-26°F 191035%20%
Jan 827°F12°F55°F 2008-22°F 194235%20%
Jan 927°F12°F56°F 2026-22°F 197735%20%
Jan 1027°F11°F53°F 1975-28°F 198235%20%
Jan 1127°F11°F53°F 1975-26°F 197935%21%
Jan 1227°F11°F53°F 2012-25°F 191235%21%
Jan 1327°F11°F52°F 1961-26°F 191235%21%
Jan 1426°F11°F53°F 2026-28°F 189335%21%
Jan 1526°F11°F53°F 1953-31°F 196335%21%
Jan 1626°F11°F50°F 1949-24°F 199435%21%
Jan 1726°F10°F54°F 1894-27°F 198236%21%
Jan 1826°F10°F54°F 1996-27°F 199436%21%
Jan 1926°F10°F57°F 1996-31°F 199436%21%
Jan 2026°F10°F57°F 1906-29°F 199436%21%
Jan 2126°F10°F50°F 1964-29°F 199436%21%
Jan 2226°F10°F53°F 1964-25°F 193636%21%
Jan 2327°F10°F50°F 1909-26°F 196336%21%
Jan 2427°F10°F52°F 1950-22°F 189736%21%
Jan 2527°F10°F55°F 1950-30°F 190436%21%
Jan 2627°F10°F60°F 1944-23°F 201936%21%
Jan 2727°F10°F55°F 1944-25°F 190436%21%
Jan 2827°F10°F54°F 2002-20°F 190236%21%
Jan 2927°F10°F46°F 2006-24°F 196636%21%
Jan 3027°F10°F56°F 2013-29°F 195136%21%
Jan 3127°F11°F55°F 2025-28°F 201936%21%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jefferson 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 (CST).

January 1
sunrise 7:27 AM, sunset 4:31 PM
January 31
sunrise 7:11 AM, sunset 5:07 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00474108 (Jefferson Wwtp), public domain. Records: NOAA GHCN-Daily, station USC00478919, 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.