Snohomish County Weather in January
Average highs run from 46°F on January 1 to 49°F on January 31, and lows from 33°F to 34°F. Normal precipitation for the month is 8.94 in over about 20 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
- 47°F
- Average low
- 34°F
- Precipitation
- 8.94 in
- Snowfall
- 0.1 in
- Record high
- 70°FJan 26, 2015
- Record low
- 7°FJan 1, 1979
- Chance of a freeze
- 100%
- Daylight
- 8 h 27 min to 9 h 30 min
- Cloud cover
- 71%
- Humidity
- 96%
- Dew point
- 24°F
- Wind
- 4.7 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 | 33°F | 53°F 2012 | 7°F 1979 | 64% | 2% |
| Jan 2 | 46°F | 33°F | 55°F 2012 | 15°F 1978 | 64% | 2% |
| Jan 3 | 46°F | 33°F | 62°F 2020 | 14°F 1979 | 64% | 2% |
| Jan 4 | 46°F | 34°F | 58°F 2012 | 10°F 2017 | 64% | 2% |
| Jan 5 | 46°F | 34°F | 55°F 2019 | 8°F 1979 | 64% | 2% |
| Jan 6 | 46°F | 34°F | 53°F 2015 | 9°F 1979 | 64% | 2% |
| Jan 7 | 47°F | 34°F | 55°F 2020 | 9°F 1979 | 64% | 2% |
| Jan 8 | 47°F | 34°F | 53°F 2012 | 17°F 1977 | 64% | 2% |
| Jan 9 | 47°F | 34°F | 52°F 2015 | 17°F 1977 | 64% | 2% |
| Jan 10 | 47°F | 34°F | 56°F 2019 | 19°F 2017 | 64% | 2% |
| Jan 11 | 47°F | 34°F | 54°F 2019 | 12°F 2017 | 64% | 2% |
| Jan 12 | 47°F | 34°F | 60°F 2019 | 12°F 2017 | 64% | 2% |
| Jan 13 | 47°F | 34°F | 55°F 2011 | 12°F 2017 | 64% | 2% |
| Jan 14 | 47°F | 34°F | 59°F 2018 | 14°F 2017 | 64% | 2% |
| Jan 15 | 47°F | 34°F | 64°F 2018 | 16°F 2017 | 64% | 2% |
| Jan 16 | 47°F | 34°F | 57°F 2019 | 21°F 2013 | 63% | 2% |
| Jan 17 | 48°F | 34°F | 59°F 2018 | 21°F 2013 | 63% | 2% |
| Jan 18 | 48°F | 34°F | 58°F 2018 | 21°F 2012 | 63% | 2% |
| Jan 19 | 48°F | 34°F | 55°F 1977 | 20°F 2012 | 63% | 2% |
| Jan 20 | 48°F | 34°F | 58°F 1978 | 22°F 2013 | 63% | 2% |
| Jan 21 | 48°F | 34°F | 54°F 2017 | 21°F 2013 | 63% | 2% |
| Jan 22 | 48°F | 34°F | 55°F 2016 | 21°F 2013 | 63% | 2% |
| Jan 23 | 48°F | 34°F | 58°F 2015 | 22°F 2017 | 63% | 2% |
| Jan 24 | 48°F | 34°F | 57°F 2014 | 25°F 2014 | 63% | 2% |
| Jan 25 | 48°F | 34°F | 62°F 2015 | 22°F 1977 | 63% | 2% |
| Jan 26 | 48°F | 34°F | 70°F 2015 | 22°F 1977 | 63% | 2% |
| Jan 27 | 49°F | 34°F | 70°F 2015 | 21°F 1977 | 63% | 2% |
| Jan 28 | 49°F | 34°F | 58°F 2015 | 21°F 1979 | 63% | 2% |
| Jan 29 | 49°F | 34°F | 57°F 2012 | 19°F 1979 | 62% | 2% |
| Jan 30 | 49°F | 34°F | 55°F 2015 | 15°F 1979 | 62% | 2% |
| Jan 31 | 49°F | 34°F | 60°F 2020 | 14°F 1979 | 62% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- January 1
- sunrise 7:57 AM, sunset 4:24 PM
- January 31
- sunrise 7:36 AM, sunset 5:06 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00458034 (Startup 1 E), public domain. Records: NOAA GHCN-Daily, station USC00450257, 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.