Lassen County Weather in January
Average highs run from 42°F on January 1 to 44°F on January 31, and lows from 21°F to 24°F. Normal precipitation for the month is 2.44 in over about 6 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 43°F
- Average low
- 22°F
- Precipitation
- 2.44 in
- Record high
- 68°FJan 30, 2003
- Record low
- -22°FJan 18, 1952
- Chance of a freeze
- 100%
- Daylight
- 9 h 20 min to 10 h 06 min
- Cloud cover
- 62%
- Humidity
- 85%
- Dew point
- 24°F
- Wind
- 5.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jan 1 | 42°F | 21°F | 58°F 1914 | -6°F 1965 | 18% |
| Jan 2 | 42°F | 21°F | 61°F 2012 | -5°F 1942 | 18% |
| Jan 3 | 42°F | 21°F | 57°F 2003 | -10°F 1971 | 18% |
| Jan 4 | 42°F | 21°F | 63°F 2012 | -12°F 1972 | 18% |
| Jan 5 | 42°F | 21°F | 61°F 1918 | -11°F 1949 | 18% |
| Jan 6 | 42°F | 21°F | 62°F 2012 | -12°F 1937 | 18% |
| Jan 7 | 42°F | 21°F | 62°F 2009 | -17°F 1937 | 18% |
| Jan 8 | 42°F | 22°F | 59°F 1962 | -8°F 1937 | 18% |
| Jan 9 | 42°F | 22°F | 57°F 1963 | -8°F 1974 | 18% |
| Jan 10 | 42°F | 22°F | 62°F 1990 | -12°F 1974 | 18% |
| Jan 11 | 42°F | 22°F | 60°F 1953 | -10°F 1949 | 18% |
| Jan 12 | 42°F | 22°F | 57°F 1999 | -6°F 1950 | 18% |
| Jan 13 | 42°F | 22°F | 57°F 2006 | -5°F 1960 | 19% |
| Jan 14 | 42°F | 22°F | 58°F 2012 | -12°F 1917 | 19% |
| Jan 15 | 43°F | 22°F | 64°F 1943 | -12°F 1917 | 19% |
| Jan 16 | 43°F | 22°F | 60°F 1909 | -14°F 1917 | 19% |
| Jan 17 | 43°F | 22°F | 64°F 2011 | -13°F 1917 | 19% |
| Jan 18 | 43°F | 22°F | 62°F 1971 | -22°F 1952 | 19% |
| Jan 19 | 43°F | 23°F | 57°F 2015 | -14°F 1937 | 19% |
| Jan 20 | 43°F | 23°F | 64°F 1950 | -16°F 1937 | 19% |
| Jan 21 | 43°F | 23°F | 58°F 1900 | -9°F 1916 | 19% |
| Jan 22 | 43°F | 23°F | 59°F 1970 | -12°F 1962 | 19% |
| Jan 23 | 43°F | 23°F | 65°F 1948 | -11°F 1962 | 19% |
| Jan 24 | 43°F | 23°F | 63°F 1948 | -13°F 1949 | 19% |
| Jan 25 | 43°F | 23°F | 62°F 1975 | -11°F 1949 | 19% |
| Jan 26 | 44°F | 23°F | 59°F 2003 | -15°F 1949 | 19% |
| Jan 27 | 44°F | 23°F | 60°F 1987 | -8°F 1957 | 19% |
| Jan 28 | 44°F | 24°F | 58°F 1987 | -3°F 1949 | 19% |
| Jan 29 | 44°F | 24°F | 62°F 2024 | -8°F 1969 | 19% |
| Jan 30 | 44°F | 24°F | 68°F 2003 | -14°F 1916 | 19% |
| Jan 31 | 44°F | 24°F | 67°F 1953 | -11°F 1916 | 19% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PST).
- January 1
- sunrise 7:26 AM, sunset 4:46 PM
- January 31
- sunrise 7:13 AM, sunset 5:19 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00048702 (Susanville 2SW), public domain. Records: NOAA GHCN-Daily, station USC00048702, 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.