Sunnyside Weather in October
Average highs run from 72°F on October 1 to 56°F on October 31, and lows from 40°F to 31°F. Normal precipitation for the month is 0.74 in over about 6 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
- 64°F
- Average low
- 35°F
- Precipitation
- 0.74 in
- Record high
- 89°FOct 2, 1988
- Record low
- 12°FOct 31, 2002
- Chance of a freeze
- 96%
- Daylight
- 11 h 41 min to 10 h 06 min
- Cloud cover
- 56%
- Humidity
- 62%
- Dew point
- 37°F
- Wind
- 7.2 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 | 72°F | 40°F | 88°F 1931 | 27°F 1954 | 14% | 0% |
| Oct 2 | 71°F | 40°F | 89°F 1988 | 28°F 1954 | 14% | 0% |
| Oct 3 | 71°F | 40°F | 89°F 1988 | 28°F 1913 | 14% | 0% |
| Oct 4 | 70°F | 39°F | 88°F 1917 | 26°F 1916 | 15% | 0% |
| Oct 5 | 70°F | 39°F | 86°F 1907 | 26°F 1898 | 15% | 0% |
| Oct 6 | 69°F | 38°F | 86°F 1917 | 28°F 1916 | 15% | 0% |
| Oct 7 | 69°F | 38°F | 88°F 1943 | 26°F 1915 | 15% | 0% |
| Oct 8 | 68°F | 38°F | 86°F 1936 | 27°F 1916 | 16% | 0% |
| Oct 9 | 68°F | 37°F | 86°F 1936 | 26°F 1985 | 16% | 0% |
| Oct 10 | 67°F | 37°F | 88°F 1936 | 23°F 1916 | 16% | 0% |
| Oct 11 | 66°F | 37°F | 84°F 1918 | 21°F 2009 | 16% | 0% |
| Oct 12 | 66°F | 36°F | 83°F 1918 | 26°F 1930 | 17% | 0% |
| Oct 13 | 65°F | 36°F | 82°F 1918 | 23°F 1928 | 17% | 0% |
| Oct 14 | 65°F | 36°F | 85°F 1917 | 21°F 1899 | 17% | 0% |
| Oct 15 | 64°F | 35°F | 85°F 1929 | 22°F 1930 | 17% | 0% |
| Oct 16 | 64°F | 35°F | 83°F 1916 | 24°F 1930 | 18% | 0% |
| Oct 17 | 63°F | 35°F | 79°F 1940 | 25°F 1897 | 18% | 0% |
| Oct 18 | 63°F | 34°F | 85°F 1940 | 24°F 1917 | 18% | 0% |
| Oct 19 | 62°F | 34°F | 81°F 2003 | 22°F 1905 | 19% | 0% |
| Oct 20 | 61°F | 34°F | 82°F 1915 | 22°F 1912 | 19% | 0% |
| Oct 21 | 61°F | 34°F | 80°F 2003 | 21°F 1906 | 19% | 0% |
| Oct 22 | 60°F | 33°F | 87°F 2003 | 23°F 1906 | 19% | 0% |
| Oct 23 | 60°F | 33°F | 79°F 2003 | 21°F 1916 | 20% | 0% |
| Oct 24 | 59°F | 33°F | 77°F 1926 | 22°F 1958 | 20% | 0% |
| Oct 25 | 59°F | 32°F | 76°F 1916 | 14°F 1919 | 20% | 0% |
| Oct 26 | 58°F | 32°F | 80°F 1937 | 23°F 1948 | 20% | 0% |
| Oct 27 | 58°F | 32°F | 74°F 1915 | 18°F 1910 | 21% | 0% |
| Oct 28 | 57°F | 32°F | 80°F 1915 | 20°F 1911 | 21% | 1% |
| Oct 29 | 57°F | 31°F | 80°F 2003 | 16°F 1971 | 21% | 1% |
| Oct 30 | 56°F | 31°F | 72°F 1921 | 14°F 1935 | 22% | 1% |
| Oct 31 | 56°F | 31°F | 75°F 1967 | 12°F 2002 | 22% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- October 1
- sunrise 6:59 AM, sunset 6:40 PM
- October 31
- sunrise 7:40 AM, sunset 5:46 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00458207 (Sunnyside), public domain. Records: NOAA GHCN-Daily, station USC00458207, 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.