Jefferson County Weather in January

• Normal low
• Normal high
• Record high
• Record low

Average high

63°F

Average low

42°F

Precipitation

4.64 in

Record high

83°FJan 14, 2017

Record low

13°FJan 12, 2010

Chance of a freeze

88%

Daylight

10 h 13 min to 10 h 44 min

Cloud cover

56%

Humidity

82%

Dew point

45°F

Wind

5.6 mph

January 1

sunrise 7:33 AM, sunset 5:46 PM

January 31

sunrise 7:27 AM, sunset 6:11 PM

Every day of January: sun and moon

• January
• February
• March
• April
• May
• June
• July
• August
• September
• October
• November
• December

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00085880 (Monticello 10 Sw), public domain. Records: NOAA GHCN-Daily, station USC00088756, 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.