Walnut Weather in October
Average highs run from 84°F on October 1 to 78°F on October 31, and lows from 57°F to 51°F. Normal precipitation for the month is 0.97 in over about 3 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
- 81°F
- Average low
- 54°F
- Precipitation
- 0.97 in
- Record high
- 107°FOct 12, 1950
- Record low
- 29°FOct 31, 1935
- Chance of a freeze
- 0%
- Days of 90°F or more
- 5.2
- Daylight
- 11 h 49 min to 10 h 49 min
- Cloud cover
- 24%
- Humidity
- 52%
- Dew point
- 44°F
- Wind
- 6.0 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 |
|---|---|---|---|---|---|
| Oct 1 | 84°F | 57°F | 104°F 1980 | 39°F 1930 | 5% |
| Oct 2 | 84°F | 57°F | 102°F 1958 | 39°F 1925 | 5% |
| Oct 3 | 84°F | 57°F | 105°F 1987 | 41°F 1916 | 5% |
| Oct 4 | 83°F | 57°F | 105°F 1987 | 38°F 1898 | 6% |
| Oct 5 | 83°F | 56°F | 103°F 1953 | 39°F 1919 | 6% |
| Oct 6 | 83°F | 56°F | 102°F 1964 | 39°F 1913 | 6% |
| Oct 7 | 82°F | 56°F | 102°F 1948 | 36°F 1913 | 6% |
| Oct 8 | 82°F | 56°F | 100°F 1951 | 38°F 1913 | 7% |
| Oct 9 | 82°F | 55°F | 100°F 1988 | 35°F 1949 | 7% |
| Oct 10 | 82°F | 55°F | 102°F 1991 | 37°F 1949 | 7% |
| Oct 11 | 81°F | 55°F | 101°F 1971 | 32°F 1924 | 7% |
| Oct 12 | 81°F | 55°F | 107°F 1950 | 33°F 1924 | 8% |
| Oct 13 | 81°F | 54°F | 106°F 1950 | 35°F 1924 | 8% |
| Oct 14 | 81°F | 54°F | 102°F 1961 | 34°F 1928 | 8% |
| Oct 15 | 81°F | 54°F | 101°F 1954 | 35°F 1920 | 9% |
| Oct 16 | 80°F | 54°F | 103°F 1958 | 34°F 1920 | 9% |
| Oct 17 | 80°F | 54°F | 103°F 1958 | 34°F 1938 | 9% |
| Oct 18 | 80°F | 53°F | 101°F 1940 | 37°F 1938 | 10% |
| Oct 19 | 80°F | 53°F | 103°F 1940 | 32°F 1949 | 10% |
| Oct 20 | 80°F | 53°F | 101°F 2003 | 31°F 1949 | 10% |
| Oct 21 | 79°F | 53°F | 104°F 2003 | 32°F 1949 | 10% |
| Oct 22 | 79°F | 53°F | 100°F 1965 | 35°F 1949 | 10% |
| Oct 23 | 79°F | 52°F | 99°F 1959 | 35°F 1949 | 10% |
| Oct 24 | 79°F | 52°F | 100°F 1968 | 32°F 1935 | 11% |
| Oct 25 | 79°F | 52°F | 100°F 1965 | 35°F 1920 | 11% |
| Oct 26 | 79°F | 52°F | 98°F 1965 | 35°F 1920 | 11% |
| Oct 27 | 78°F | 52°F | 98°F 1965 | 34°F 1919 | 11% |
| Oct 28 | 78°F | 52°F | 99°F 1965 | 32°F 1919 | 11% |
| Oct 29 | 78°F | 51°F | 96°F 1965 | 32°F 1919 | 11% |
| Oct 30 | 78°F | 51°F | 99°F 1966 | 33°F 1922 | 11% |
| Oct 31 | 78°F | 51°F | 98°F 1918 | 29°F 1935 | 11% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- October 1
- sunrise 6:46 AM, sunset 6:35 PM
- October 31
- sunrise 7:10 AM, sunset 5:59 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047050 (Pomona/fairplex), public domain. Records: NOAA GHCN-Daily, station USC00047050, 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.