Hernandez Weather in September
Average highs run from 83°F on September 1 to 75°F on September 30, and lows from 50°F to 39°F. Normal precipitation for the month is 1.25 in over about 5 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
- 80°F
- Average low
- 45°F
- Precipitation
- 1.25 in
- Record high
- 94°FSep 11, 1934
- Record low
- 23°FSep 29, 1936
- Chance of a freeze
- 30%
- Days of 90°F or more
- 1.9
- Daylight
- 12 h 56 min to 11 h 50 min
- Cloud cover
- 42%
- Humidity
- 52%
- Dew point
- 38°F
- Wind
- 6.0 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 | 83°F | 50°F | 88°F 1950 | 43°F 1932 | 21% | 0% |
| Sep 2 | 83°F | 50°F | 88°F 1950 | 40°F 1976 | 21% | 0% |
| Sep 3 | 83°F | 49°F | 90°F 1948 | 36°F 1961 | 21% | 0% |
| Sep 4 | 83°F | 49°F | 89°F 1948 | 33°F 1961 | 21% | 0% |
| Sep 5 | 83°F | 49°F | 88°F 1952 | 38°F 1961 | 20% | 0% |
| Sep 6 | 82°F | 48°F | 90°F 2020 | 42°F 1928 | 20% | 0% |
| Sep 7 | 82°F | 48°F | 88°F 2020 | 42°F 1942 | 20% | 0% |
| Sep 8 | 82°F | 48°F | 86°F 1977 | 32°F 2020 | 20% | 0% |
| Sep 9 | 82°F | 47°F | 87°F 1984 | 31°F 2020 | 20% | 0% |
| Sep 10 | 82°F | 47°F | 90°F 2021 | 32°F 2020 | 20% | 0% |
| Sep 11 | 81°F | 47°F | 94°F 1934 | 34°F 2020 | 20% | 0% |
| Sep 12 | 81°F | 46°F | 86°F 1934 | 40°F 1924 | 19% | 0% |
| Sep 13 | 81°F | 46°F | 86°F 1935 | 39°F 1989 | 19% | 0% |
| Sep 14 | 81°F | 45°F | 89°F 2000 | 34°F 1989 | 19% | 0% |
| Sep 15 | 80°F | 45°F | 85°F 1956 | 37°F 1993 | 19% | 0% |
| Sep 16 | 80°F | 45°F | 87°F 1956 | 38°F 1941 | 19% | 0% |
| Sep 17 | 80°F | 44°F | 87°F 1956 | 35°F 1968 | 19% | 0% |
| Sep 18 | 79°F | 44°F | 84°F 1952 | 30°F 1971 | 18% | 0% |
| Sep 19 | 79°F | 43°F | 83°F 1952 | 26°F 1971 | 18% | 0% |
| Sep 20 | 79°F | 43°F | 85°F 2014 | 33°F 1965 | 18% | 0% |
| Sep 21 | 78°F | 43°F | 83°F 2016 | 25°F 1983 | 18% | 0% |
| Sep 22 | 78°F | 42°F | 82°F 2012 | 29°F 1995 | 18% | 0% |
| Sep 23 | 78°F | 42°F | 80°F 1922 | 31°F 1995 | 18% | 0% |
| Sep 24 | 78°F | 41°F | 81°F 1979 | 32°F 2006 | 17% | 0% |
| Sep 25 | 77°F | 41°F | 83°F 2020 | 29°F 2000 | 17% | 0% |
| Sep 26 | 77°F | 40°F | 83°F 2020 | 31°F 1970 | 17% | 0% |
| Sep 27 | 76°F | 40°F | 84°F 2015 | 28°F 1996 | 17% | 0% |
| Sep 28 | 76°F | 40°F | 82°F 1998 | 24°F 1936 | 17% | 0% |
| Sep 29 | 76°F | 39°F | 83°F 2010 | 23°F 1936 | 17% | 0% |
| Sep 30 | 75°F | 39°F | 83°F 2024 | 25°F 1985 | 16% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:36 AM, sunset 7:32 PM
- September 30
- sunrise 6:59 AM, sunset 6:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00290245 (Alcalde), public domain. Records: NOAA GHCN-Daily, station USC00295084, 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.