Snohomish County Weather in October
Average highs run from 68°F on October 1 to 56°F on October 31, and lows from 44°F to 39°F. Normal precipitation for the month is 7.13 in over about 17 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 62°F
- Average low
- 42°F
- Precipitation
- 7.13 in
- Record high
- 98°FOct 1, 1923
- Record low
- 24°FOct 30, 2019
- Chance of a freeze
- 65%
- Daylight
- 11 h 40 min to 9 h 59 min
- Cloud cover
- 68%
- Humidity
- 85%
- Dew point
- 36°F
- Wind
- 3.6 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 |
|---|---|---|---|---|---|---|
| Oct 1 | 68°F | 44°F | 98°F 1923 | 35°F 2019 | 46% | 0% |
| Oct 2 | 67°F | 44°F | 69°F 2014 | 29°F 2018 | 46% | 0% |
| Oct 3 | 67°F | 44°F | 75°F 2014 | 30°F 2012 | 47% | 0% |
| Oct 4 | 66°F | 44°F | 73°F 2015 | 31°F 2012 | 48% | 0% |
| Oct 5 | 66°F | 44°F | 78°F 2014 | 31°F 1977 | 48% | 0% |
| Oct 6 | 66°F | 43°F | 80°F 2013 | 32°F 2012 | 49% | 0% |
| Oct 7 | 65°F | 43°F | 75°F 2012 | 34°F 2012 | 50% | 0% |
| Oct 8 | 65°F | 43°F | 75°F 2012 | 30°F 2013 | 50% | 0% |
| Oct 9 | 64°F | 43°F | 87°F 1934 | 28°F 2019 | 51% | 0% |
| Oct 10 | 64°F | 43°F | 80°F 1934 | 28°F 2016 | 52% | 0% |
| Oct 11 | 64°F | 42°F | 67°F 2015 | 27°F 2016 | 52% | 0% |
| Oct 12 | 63°F | 42°F | 69°F 2016 | 29°F 2016 | 53% | 0% |
| Oct 13 | 63°F | 42°F | 70°F 2014 | 28°F 2018 | 53% | 0% |
| Oct 14 | 62°F | 42°F | 67°F 2018 | 28°F 2018 | 54% | 0% |
| Oct 15 | 62°F | 42°F | 69°F 2014 | 30°F 2018 | 54% | 0% |
| Oct 16 | 62°F | 42°F | 72°F 1977 | 28°F 1934 | 55% | 0% |
| Oct 17 | 61°F | 41°F | 75°F 2018 | 29°F 1934 | 55% | 0% |
| Oct 18 | 61°F | 41°F | 70°F 2018 | 29°F 1976 | 56% | 0% |
| Oct 19 | 60°F | 41°F | 75°F 2014 | 29°F 1976 | 57% | 0% |
| Oct 20 | 60°F | 41°F | 67°F 1976 | 29°F 1976 | 57% | 0% |
| Oct 21 | 60°F | 41°F | 65°F 1976 | 29°F 1976 | 58% | 0% |
| Oct 22 | 59°F | 41°F | 65°F 2016 | 27°F 1935 | 58% | 0% |
| Oct 23 | 59°F | 40°F | 66°F 1977 | 29°F 1935 | 59% | 0% |
| Oct 24 | 59°F | 40°F | 64°F 1977 | 30°F 1935 | 59% | 0% |
| Oct 25 | 58°F | 40°F | 66°F 2016 | 30°F 1935 | 60% | 0% |
| Oct 26 | 58°F | 40°F | 63°F 2017 | 29°F 2019 | 60% | 0% |
| Oct 27 | 58°F | 40°F | 67°F 2015 | 29°F 2019 | 61% | 0% |
| Oct 28 | 57°F | 40°F | 70°F 2017 | 26°F 2019 | 61% | 0% |
| Oct 29 | 57°F | 39°F | 64°F 2014 | 25°F 2019 | 62% | 0% |
| Oct 30 | 57°F | 39°F | 63°F 2015 | 24°F 2019 | 62% | 0% |
| Oct 31 | 56°F | 39°F | 60°F 2015 | 24°F 1935 | 62% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- October 1
- sunrise 7:06 AM, sunset 6:46 PM
- October 31
- sunrise 7:51 AM, sunset 5:50 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.