Roslyn Weather in January
Average highs run from 33°F on January 1 to 37°F on January 31, and lows from 21°F to 23°F. Normal precipitation for the month is 3.40 in.
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
- 35°F
- Average low
- 22°F
- Precipitation
- 3.40 in
- Record high
- 59°FJan 23, 1968
- Record low
- -12°FJan 13, 2024
- Chance of a freeze
- 100%
- Daylight
- 8 h 34 min to 9 h 35 min
- Cloud cover
- 72%
- Humidity
- 97%
- Dew point
- 24°F
- Wind
- 5.1 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 | 33°F | 21°F | 44°F 2007 | -9°F 1979 | |
| Jan 2 | 33°F | 21°F | 50°F 2007 | -3°F 1979 | |
| Jan 3 | 33°F | 22°F | 49°F 1984 | -5°F 1959 | |
| Jan 4 | 33°F | 22°F | 48°F 1984 | -6°F 1959 | |
| Jan 5 | 33°F | 22°F | 46°F 1963 | -4°F 2004 | |
| Jan 6 | 34°F | 22°F | 48°F 1984 | -3°F 2004 | |
| Jan 7 | 34°F | 22°F | 45°F 1945 | -1°F 1973 | |
| Jan 8 | 34°F | 22°F | 44°F 1945 | 0°F 1974 | |
| Jan 9 | 34°F | 22°F | 45°F 1982 | 0°F 1949 | |
| Jan 10 | 34°F | 22°F | 44°F 1999 | -6°F 1963 | |
| Jan 11 | 34°F | 22°F | 52°F 1983 | -10°F 1963 | |
| Jan 12 | 34°F | 22°F | 54°F 1983 | -7°F 1963 | |
| Jan 13 | 34°F | 22°F | 55°F 2026 | -12°F 2024 | |
| Jan 14 | 35°F | 22°F | 57°F 2026 | -9°F 1950 | |
| Jan 15 | 35°F | 22°F | 47°F 1992 | -8°F 1950 | |
| Jan 16 | 35°F | 22°F | 54°F 1976 | -7°F 1950 | |
| Jan 17 | 35°F | 22°F | 54°F 2013 | -9°F 1950 | |
| Jan 18 | 35°F | 22°F | 52°F 2005 | -9°F 1950 | |
| Jan 19 | 35°F | 22°F | 57°F 2005 | -2°F 1962 | |
| Jan 20 | 36°F | 23°F | 52°F 2005 | -5°F 1954 | |
| Jan 21 | 36°F | 23°F | 47°F 2005 | -3°F 1954 | |
| Jan 22 | 36°F | 23°F | 50°F 2005 | -2°F 1969 | |
| Jan 23 | 36°F | 23°F | 59°F 1968 | -6°F 1969 | |
| Jan 24 | 36°F | 23°F | 58°F 2005 | -5°F 1950 | |
| Jan 25 | 36°F | 23°F | 49°F 2023 | -9°F 1950 | |
| Jan 26 | 37°F | 23°F | 54°F 2011 | -10°F 1950 | |
| Jan 27 | 37°F | 23°F | 55°F 2011 | -4°F 1957 | |
| Jan 28 | 37°F | 23°F | 50°F 1962 | -5°F 1969 | |
| Jan 29 | 37°F | 23°F | 55°F 1962 | -6°F 1950 | |
| Jan 30 | 37°F | 23°F | 51°F 1962 | -8°F 1950 | |
| Jan 31 | 37°F | 23°F | 56°F 1962 | -9°F 1950 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (PST).
- January 1
- sunrise 7:51 AM, sunset 4:25 PM
- January 31
- sunrise 7:30 AM, sunset 5:05 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00451504 (Cle Elum), public domain. Records: NOAA GHCN-Daily, station USW00024237, 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.