Terra Bella Weather in September
Average highs run from 95°F on September 1 to 89°F on September 30, and lows from 65°F to 59°F. Normal precipitation for the month is 0.06 in over about 1 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 92°F
- Average low
- 62°F
- Precipitation
- 0.06 in
- Record high
- 112°FSep 18, 1913
- Record low
- 37°FSep 21, 1968
- Chance of a freeze
- 0%
- Days of 90°F or more
- 22.1
- Daylight
- 12 h 55 min to 11 h 50 min
- Cloud cover
- 28%
- Humidity
- 31%
- Dew point
- 35°F
- Wind
- 5.8 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 |
|---|---|---|---|---|---|---|
| Sep 1 | 95°F | 65°F | 108°F 1902 | 49°F 1907 | 3% | 0% |
| Sep 2 | 95°F | 65°F | 108°F 1988 | 50°F 1964 | 3% | 0% |
| Sep 3 | 95°F | 64°F | 109°F 1950 | 51°F 1964 | 3% | 0% |
| Sep 4 | 94°F | 64°F | 108°F 1955 | 45°F 1912 | 3% | 0% |
| Sep 5 | 94°F | 64°F | 110°F 1932 | 47°F 1912 | 3% | 0% |
| Sep 6 | 94°F | 64°F | 106°F 1904 | 47°F 1911 | 3% | 0% |
| Sep 7 | 94°F | 64°F | 110°F 1904 | 48°F 1912 | 3% | 0% |
| Sep 8 | 94°F | 64°F | 109°F 1904 | 45°F 1920 | 3% | 0% |
| Sep 9 | 94°F | 64°F | 107°F 1944 | 44°F 1920 | 3% | 0% |
| Sep 10 | 94°F | 64°F | 105°F 1922 | 44°F 1931 | 3% | 0% |
| Sep 11 | 93°F | 63°F | 106°F 1922 | 43°F 1931 | 3% | 0% |
| Sep 12 | 93°F | 63°F | 105°F 1922 | 42°F 1928 | 3% | 0% |
| Sep 13 | 93°F | 63°F | 107°F 1955 | 46°F 1966 | 3% | 0% |
| Sep 14 | 93°F | 63°F | 105°F 1929 | 45°F 1921 | 3% | 0% |
| Sep 15 | 93°F | 63°F | 105°F 1971 | 45°F 1966 | 3% | 0% |
| Sep 16 | 93°F | 63°F | 107°F 1913 | 46°F 1907 | 3% | 0% |
| Sep 17 | 92°F | 62°F | 109°F 1913 | 44°F 1908 | 3% | 0% |
| Sep 18 | 92°F | 62°F | 112°F 1913 | 46°F 1907 | 3% | 0% |
| Sep 19 | 92°F | 62°F | 106°F 1922 | 44°F 1947 | 3% | 0% |
| Sep 20 | 92°F | 62°F | 104°F 1939 | 41°F 1968 | 3% | 0% |
| Sep 21 | 91°F | 61°F | 108°F 1939 | 37°F 1968 | 3% | 0% |
| Sep 22 | 91°F | 61°F | 104°F 1939 | 40°F 1968 | 3% | 0% |
| Sep 23 | 91°F | 61°F | 104°F 1949 | 42°F 1945 | 3% | 0% |
| Sep 24 | 91°F | 61°F | 104°F 1919 | 40°F 1923 | 3% | 0% |
| Sep 25 | 90°F | 60°F | 103°F 1939 | 39°F 1920 | 3% | 0% |
| Sep 26 | 90°F | 60°F | 101°F 1956 | 39°F 1948 | 3% | 0% |
| Sep 27 | 90°F | 60°F | 106°F 1963 | 41°F 1948 | 3% | 0% |
| Sep 28 | 89°F | 60°F | 104°F 1963 | 41°F 1948 | 3% | 0% |
| Sep 29 | 89°F | 59°F | 101°F 1921 | 41°F 1905 | 3% | 0% |
| Sep 30 | 89°F | 59°F | 103°F 1992 | 41°F 1911 | 3% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- September 1
- sunrise 6:28 AM, sunset 7:23 PM
- September 30
- sunrise 6:51 AM, sunset 6:41 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047077 (Porterville), public domain. Records: NOAA GHCN-Daily, station USC00047077, 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.