Rainier Weather in January
Average highs run from 46°F on January 1 to 50°F on January 31, and lows from 35°F to 35°F. Normal precipitation for the month is 6.53 in over about 24 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
- 48°F
- Average low
- 35°F
- Precipitation
- 6.53 in
- Snowfall
- 0.5 in
- Record high
- 65°FJan 28, 1931
- Record low
- -6°FJan 17, 1930
- Chance of a freeze
- 98%
- Daylight
- 8 h 43 min to 9 h 41 min
- Cloud cover
- 76%
- Humidity
- 94%
- Dew point
- 37°F
- Wind
- 4.9 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jan 1 | 46°F | 35°F | 58°F 1939 | 7°F 1979 | 78% | 3% |
| Jan 2 | 46°F | 35°F | 57°F 1953 | 8°F 1979 | 78% | 3% |
| Jan 3 | 46°F | 35°F | 58°F 1953 | 10°F 1950 | 78% | 3% |
| Jan 4 | 46°F | 35°F | 56°F 1984 | 14°F 1959 | 78% | 3% |
| Jan 5 | 46°F | 35°F | 58°F 2003 | 11°F 1942 | 78% | 3% |
| Jan 6 | 46°F | 35°F | 56°F 2001 | 10°F 1937 | 78% | 3% |
| Jan 7 | 47°F | 35°F | 58°F 2003 | 7°F 1937 | 78% | 3% |
| Jan 8 | 47°F | 35°F | 58°F 1941 | 5°F 1937 | 78% | 3% |
| Jan 9 | 47°F | 35°F | 56°F 1959 | 11°F 1930 | 78% | 3% |
| Jan 10 | 47°F | 35°F | 59°F 1945 | 7°F 1930 | 78% | 3% |
| Jan 11 | 47°F | 35°F | 58°F 1953 | 2°F 1930 | 77% | 3% |
| Jan 12 | 47°F | 35°F | 61°F 2022 | 0°F 1930 | 77% | 2% |
| Jan 13 | 47°F | 35°F | 61°F 2018 | 3°F 1930 | 77% | 2% |
| Jan 14 | 47°F | 35°F | 63°F 2018 | -1°F 1930 | 77% | 2% |
| Jan 15 | 48°F | 35°F | 60°F 2018 | 10°F 1947 | 77% | 2% |
| Jan 16 | 48°F | 35°F | 58°F 1958 | 20°F 1930 | 76% | 2% |
| Jan 17 | 48°F | 35°F | 57°F 2011 | -6°F 1930 | 76% | 2% |
| Jan 18 | 48°F | 35°F | 59°F 1953 | 6°F 1950 | 76% | 2% |
| Jan 19 | 48°F | 35°F | 62°F 2005 | 12°F 1935 | 76% | 2% |
| Jan 20 | 48°F | 35°F | 59°F 2005 | 9°F 1935 | 76% | 2% |
| Jan 21 | 48°F | 35°F | 60°F 1995 | 8°F 1962 | 75% | 2% |
| Jan 22 | 49°F | 35°F | 64°F 1968 | -6°F 1930 | 75% | 2% |
| Jan 23 | 49°F | 35°F | 59°F 1995 | 9°F 1929 | 75% | 2% |
| Jan 24 | 49°F | 35°F | 61°F 1935 | 8°F 1930 | 75% | 2% |
| Jan 25 | 49°F | 35°F | 63°F 2015 | 0°F 1930 | 74% | 2% |
| Jan 26 | 49°F | 35°F | 61°F 1986 | 7°F 1950 | 74% | 2% |
| Jan 27 | 49°F | 35°F | 62°F 2003 | 8°F 1957 | 74% | 2% |
| Jan 28 | 49°F | 35°F | 65°F 1931 | 7°F 1957 | 74% | 2% |
| Jan 29 | 50°F | 35°F | 62°F 1931 | 9°F 1957 | 73% | 2% |
| Jan 30 | 50°F | 35°F | 61°F 1940 | 9°F 1980 | 73% | 2% |
| Jan 31 | 50°F | 35°F | 63°F 1940 | 1°F 1950 | 73% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- January 1
- sunrise 7:54 AM, sunset 4:37 PM
- January 31
- sunrise 7:35 AM, sunset 5:16 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00454769 (Longview), public domain. Records: NOAA GHCN-Daily, station USC00454769, 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.