Sierra Blanca Weather in September
Average highs run from 93°F on September 1 to 87°F on September 30, and lows from 66°F to 55°F. Normal precipitation for the month is 1.18 in over about 4 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
- 61°F
- Precipitation
- 1.18 in
- Record high
- 104°FSep 5, 1948
- Record low
- 33°FSep 27, 1970
- Chance of a freeze
- 0%
- Days of 90°F or more
- 17.8
- Daylight
- 12 h 47 min to 11 h 53 min
- Cloud cover
- 38%
- Humidity
- 49%
- Dew point
- 51°F
- Wind
- 8.1 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 | 93°F | 66°F | 103°F 1952 | 55°F 1944 | 16% | 0% |
| Sep 2 | 92°F | 65°F | 102°F 1959 | 48°F 1955 | 16% | 0% |
| Sep 3 | 92°F | 65°F | 100°F 1952 | 48°F 1955 | 16% | 0% |
| Sep 4 | 92°F | 65°F | 99°F 1945 | 47°F 1984 | 16% | 0% |
| Sep 5 | 92°F | 65°F | 104°F 1948 | 43°F 1984 | 16% | 0% |
| Sep 6 | 92°F | 64°F | 103°F 1948 | 46°F 1984 | 16% | 0% |
| Sep 7 | 91°F | 64°F | 100°F 1945 | 44°F 1952 | 16% | 0% |
| Sep 8 | 91°F | 64°F | 98°F 1945 | 48°F 1952 | 15% | 0% |
| Sep 9 | 91°F | 64°F | 99°F 2023 | 46°F 2020 | 15% | 0% |
| Sep 10 | 91°F | 63°F | 98°F 1984 | 43°F 2020 | 15% | 0% |
| Sep 11 | 91°F | 63°F | 99°F 1984 | 43°F 2020 | 15% | 0% |
| Sep 12 | 90°F | 63°F | 99°F 1967 | 50°F 1959 | 15% | 0% |
| Sep 13 | 90°F | 62°F | 97°F 1946 | 48°F 1959 | 15% | 0% |
| Sep 14 | 90°F | 62°F | 99°F 1950 | 46°F 1945 | 15% | 0% |
| Sep 15 | 90°F | 62°F | 99°F 2017 | 46°F 1993 | 15% | 0% |
| Sep 16 | 90°F | 61°F | 99°F 1956 | 47°F 1993 | 14% | 0% |
| Sep 17 | 89°F | 61°F | 96°F 1952 | 42°F 1951 | 14% | 0% |
| Sep 18 | 89°F | 60°F | 97°F 1952 | 42°F 1951 | 14% | 0% |
| Sep 19 | 89°F | 60°F | 98°F 1953 | 40°F 1991 | 14% | 0% |
| Sep 20 | 89°F | 60°F | 99°F 1953 | 37°F 1984 | 14% | 0% |
| Sep 21 | 89°F | 59°F | 99°F 1977 | 38°F 1991 | 14% | 0% |
| Sep 22 | 88°F | 59°F | 98°F 2024 | 40°F 1995 | 13% | 0% |
| Sep 23 | 88°F | 58°F | 99°F 1977 | 40°F 1995 | 13% | 0% |
| Sep 24 | 88°F | 58°F | 98°F 2023 | 44°F 1975 | 13% | 0% |
| Sep 25 | 88°F | 58°F | 97°F 1977 | 42°F 2000 | 13% | 0% |
| Sep 26 | 88°F | 57°F | 98°F 1977 | 40°F 2000 | 13% | 0% |
| Sep 27 | 87°F | 57°F | 99°F 1961 | 33°F 1970 | 13% | 0% |
| Sep 28 | 87°F | 56°F | 99°F 1977 | 39°F 1973 | 13% | 0% |
| Sep 29 | 87°F | 56°F | 100°F 1977 | 37°F 1945 | 13% | 0% |
| Sep 30 | 87°F | 55°F | 99°F 1977 | 40°F 1945 | 13% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:38 AM, sunset 7:25 PM
- September 30
- sunrise 6:55 AM, sunset 6:48 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00413266 (Ft Hancock 8SSE), public domain. Records: NOAA GHCN-Daily, station USC00419295, 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.