Killeen Weather in September
Average highs run from 94°F on September 1 to 85°F on September 30, and lows from 71°F to 62°F. Normal precipitation for the month is 3.89 in over about 6 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
- 90°F
- Average low
- 67°F
- Precipitation
- 3.89 in
- Record high
- 112°FSep 4, 2000
- Record low
- 41°FSep 21, 1994
- Chance of a freeze
- 0%
- Days of 90°F or more
- 15.9
- Daylight
- 12 h 47 min to 11 h 53 min
- Cloud cover
- 43%
- Humidity
- 65%
- Dew point
- 64°F
- Wind
- 8.1 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 |
|---|---|---|---|---|---|
| Sep 1 | 94°F | 71°F | 110°F 2000 | 63°F 1986 | 18% |
| Sep 2 | 94°F | 70°F | 111°F 2000 | 60°F 1986 | 18% |
| Sep 3 | 93°F | 70°F | 109°F 2000 | 63°F 1987 | 18% |
| Sep 4 | 93°F | 70°F | 112°F 2000 | 62°F 1993 | 18% |
| Sep 5 | 93°F | 70°F | 111°F 2000 | 60°F 1993 | 18% |
| Sep 6 | 92°F | 69°F | 112°F 2000 | 60°F 1988 | 18% |
| Sep 7 | 92°F | 69°F | 108°F 2023 | 54°F 2017 | 18% |
| Sep 8 | 92°F | 69°F | 109°F 2023 | 55°F 2017 | 18% |
| Sep 9 | 92°F | 69°F | 105°F 2023 | 55°F 2024 | 18% |
| Sep 10 | 91°F | 68°F | 101°F 1982 | 55°F 2020 | 18% |
| Sep 11 | 91°F | 68°F | 102°F 1982 | 58°F 1979 | 18% |
| Sep 12 | 91°F | 68°F | 106°F 2000 | 56°F 2017 | 18% |
| Sep 13 | 90°F | 68°F | 103°F 2000 | 57°F 2014 | 18% |
| Sep 14 | 90°F | 67°F | 103°F 2000 | 55°F 1989 | 18% |
| Sep 15 | 90°F | 67°F | 100°F 2024 | 52°F 1989 | 18% |
| Sep 16 | 90°F | 67°F | 100°F 2000 | 52°F 1989 | 18% |
| Sep 17 | 89°F | 66°F | 98°F 1997 | 52°F 1979 | 17% |
| Sep 18 | 89°F | 66°F | 98°F 1997 | 48°F 1981 | 17% |
| Sep 19 | 89°F | 66°F | 101°F 2024 | 47°F 1981 | 17% |
| Sep 20 | 88°F | 66°F | 101°F 2021 | 52°F 1991 | 17% |
| Sep 21 | 88°F | 65°F | 101°F 1999 | 41°F 1994 | 17% |
| Sep 22 | 88°F | 65°F | 98°F 2022 | 45°F 1983 | 16% |
| Sep 23 | 87°F | 65°F | 101°F 2000 | 43°F 1994 | 16% |
| Sep 24 | 87°F | 64°F | 103°F 2023 | 42°F 1994 | 16% |
| Sep 25 | 87°F | 64°F | 98°F 2019 | 45°F 1989 | 16% |
| Sep 26 | 87°F | 64°F | 97°F 2019 | 44°F 1989 | 16% |
| Sep 27 | 86°F | 63°F | 96°F 2019 | 46°F 1994 | 16% |
| Sep 28 | 86°F | 63°F | 98°F 1979 | 46°F 1996 | 15% |
| Sep 29 | 86°F | 63°F | 97°F 1979 | 46°F 1996 | 15% |
| Sep 30 | 85°F | 62°F | 97°F 1979 | 45°F 1984 | 15% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- September 1
- sunrise 7:07 AM, sunset 7:54 PM
- September 30
- sunrise 7:24 AM, sunset 7:17 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00414792 (Killeen), public domain. Records: NOAA GHCN-Daily, station USC00414792, 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.