Atherton Weather in October
Average highs run from 78°F on October 1 to 70°F on October 31, and lows from 53°F to 47°F. Normal precipitation for the month is 0.87 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
- 75°F
- Average low
- 50°F
- Precipitation
- 0.87 in
- Record high
- 104°FOct 2, 1980
- Record low
- 33°FOct 20, 1949
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.5
- Daylight
- 11 h 48 min to 10 h 38 min
- Cloud cover
- 26%
- Humidity
- 63%
- Dew point
- 45°F
- Wind
- 6.5 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 | 78°F | 53°F | 103°F 1980 | 40°F 1950 | 4% | 0% |
| Oct 2 | 78°F | 52°F | 104°F 1980 | 40°F 1950 | 4% | 0% |
| Oct 3 | 77°F | 52°F | 103°F 1980 | 42°F 1931 | 4% | 0% |
| Oct 4 | 77°F | 52°F | 101°F 1980 | 39°F 1931 | 5% | 0% |
| Oct 5 | 77°F | 52°F | 99°F 1987 | 39°F 1931 | 5% | 0% |
| Oct 6 | 77°F | 52°F | 103°F 2024 | 42°F 1931 | 5% | 0% |
| Oct 7 | 77°F | 52°F | 99°F 2024 | 40°F 1931 | 5% | 0% |
| Oct 8 | 77°F | 51°F | 98°F 1996 | 40°F 1968 | 6% | 0% |
| Oct 9 | 76°F | 51°F | 92°F 1934 | 42°F 1968 | 6% | 0% |
| Oct 10 | 76°F | 51°F | 92°F 1991 | 40°F 1968 | 6% | 0% |
| Oct 11 | 76°F | 51°F | 91°F 1991 | 43°F 1985 | 6% | 0% |
| Oct 12 | 76°F | 51°F | 92°F 2010 | 39°F 1969 | 7% | 0% |
| Oct 13 | 76°F | 51°F | 96°F 2015 | 39°F 1981 | 7% | 0% |
| Oct 14 | 75°F | 50°F | 94°F 1961 | 41°F 1960 | 7% | 0% |
| Oct 15 | 75°F | 50°F | 95°F 1961 | 39°F 1931 | 8% | 0% |
| Oct 16 | 75°F | 50°F | 94°F 2020 | 35°F 2006 | 8% | 0% |
| Oct 17 | 75°F | 50°F | 93°F 2020 | 38°F 1938 | 8% | 0% |
| Oct 18 | 75°F | 50°F | 90°F 1933 | 38°F 1946 | 8% | 0% |
| Oct 19 | 74°F | 49°F | 94°F 2022 | 40°F 1932 | 9% | 0% |
| Oct 20 | 74°F | 49°F | 87°F 1975 | 33°F 1949 | 9% | 0% |
| Oct 21 | 74°F | 49°F | 89°F 1937 | 35°F 1949 | 10% | 0% |
| Oct 22 | 73°F | 49°F | 88°F 1965 | 38°F 1949 | 10% | 0% |
| Oct 23 | 73°F | 48°F | 91°F 1959 | 37°F 1961 | 10% | 0% |
| Oct 24 | 73°F | 48°F | 93°F 2017 | 36°F 1956 | 11% | 0% |
| Oct 25 | 73°F | 48°F | 98°F 2003 | 37°F 1935 | 11% | 0% |
| Oct 26 | 72°F | 48°F | 96°F 2003 | 38°F 1939 | 12% | 0% |
| Oct 27 | 72°F | 48°F | 90°F 2003 | 39°F 1931 | 12% | 0% |
| Oct 28 | 72°F | 47°F | 90°F 2003 | 33°F 1946 | 13% | 0% |
| Oct 29 | 71°F | 47°F | 85°F 1931 | 33°F 1946 | 13% | 0% |
| Oct 30 | 71°F | 47°F | 86°F 1939 | 33°F 1971 | 14% | 0% |
| Oct 31 | 70°F | 47°F | 83°F 1949 | 33°F 1935 | 14% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- October 1
- sunrise 7:04 AM, sunset 6:52 PM
- October 31
- sunrise 7:33 AM, sunset 6:11 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047339 (Redwood City), public domain. Records: NOAA GHCN-Daily, station USC00047339, 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.