Thermalito climate

Thermalito Weather in January

NOAA 1991-2020 normals for Oroville, 3 km from Thermalito

Average highs run from 57°F on January 1 to 59°F on January 31, and lows from 39°F to 41°F. Normal precipitation for the month is 5.79 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 Thermalito, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
58°F
Average low
40°F
Precipitation
5.79 in
Record high
83°FJan 15, 2009
Record low
22°FJan 13, 2013
Chance of a freeze
69%
Daylight
9 h 26 min to 10 h 11 min
Cloud cover
61%
Humidity
77%
Dew point
34°F
Wind
6.5 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 157°F39°F63°F 201430°F 201535%0%
Jan 257°F39°F66°F 199928°F 201536%0%
Jan 357°F39°F63°F 201429°F 201336%0%
Jan 457°F39°F67°F 201428°F 200936%0%
Jan 557°F39°F71°F 200329°F 199936%0%
Jan 657°F39°F64°F 202529°F 201736%0%
Jan 757°F39°F64°F 201528°F 200036%0%
Jan 857°F39°F69°F 202529°F 199936%0%
Jan 957°F39°F75°F 202531°F 199936%0%
Jan 1057°F39°F65°F 202226°F 201135%0%
Jan 1157°F40°F66°F 200929°F 201335%0%
Jan 1257°F40°F73°F 200926°F 201335%0%
Jan 1357°F40°F65°F 201522°F 201335%0%
Jan 1457°F40°F76°F 201425°F 200735%0%
Jan 1557°F40°F83°F 200927°F 200735%0%
Jan 1658°F40°F70°F 202125°F 201235%0%
Jan 1758°F40°F77°F 202124°F 201235%0%
Jan 1858°F40°F73°F 202127°F 201335%0%
Jan 1958°F40°F71°F 202131°F 200235%0%
Jan 2058°F40°F68°F 201428°F 201335%0%
Jan 2158°F40°F68°F 201429°F 201335%0%
Jan 2258°F40°F75°F 202230°F 200235%0%
Jan 2358°F40°F78°F 201428°F 200235%0%
Jan 2458°F40°F75°F 201431°F 200235%0%
Jan 2559°F40°F73°F 201432°F 200735%0%
Jan 2659°F40°F69°F 202331°F 202635%0%
Jan 2759°F40°F66°F 201932°F 200935%0%
Jan 2859°F40°F71°F 202430°F 200235%0%
Jan 2959°F40°F69°F 202426°F 200235%0%
Jan 3059°F40°F72°F 201529°F 200235%0%
Jan 3159°F41°F72°F 201527°F 200135%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Thermalito, 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 (PST).

January 1
sunrise 7:27 AM, sunset 4:53 PM
January 31
sunrise 7:15 AM, sunset 5:26 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046521 (Oroville), public domain. Records: NOAA GHCN-Daily, station USW00093210, 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.