Brenham climate

Brenham Weather in September

NOAA 1991-2020 normals for Brenham, 0.9 km from Brenham

Average highs run from 93°F on September 1 to 87°F on September 30, and lows from 72°F to 64°F. Normal precipitation for the month is 4.59 in over about 7 wet days.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Brenham, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
90°F
Average low
68°F
Precipitation
4.59 in
Record high
113°FSep 5, 2000
Record low
43°FSep 27, 1942
Chance of a freeze
0%
Days of 90°F or more
18.9
Daylight
12 h 45 min to 11 h 53 min
Cloud cover
46%
Humidity
71%
Dew point
68°F
Wind
7.2 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 193°F72°F109°F 200061°F 191524%0%
Sep 293°F72°F108°F 200061°F 191524%0%
Sep 393°F72°F109°F 200060°F 195524%0%
Sep 492°F71°F109°F 200057°F 197424%0%
Sep 592°F71°F113°F 200054°F 197424%0%
Sep 692°F71°F110°F 200054°F 197424%0%
Sep 792°F71°F103°F 196353°F 197424%0%
Sep 892°F71°F105°F 196353°F 197424%0%
Sep 991°F70°F106°F 202357°F 195724%0%
Sep 1091°F70°F101°F 192559°F 195724%0%
Sep 1191°F70°F102°F 195456°F 190724%0%
Sep 1291°F70°F102°F 196454°F 194024%0%
Sep 1390°F69°F103°F 201154°F 190224%0%
Sep 1490°F69°F104°F 201153°F 190224%0%
Sep 1590°F69°F101°F 191152°F 190223%0%
Sep 1690°F69°F100°F 191153°F 190223%0%
Sep 1790°F68°F101°F 191152°F 196123%0%
Sep 1889°F68°F102°F 199550°F 198123%0%
Sep 1989°F68°F99°F 192548°F 198123%0%
Sep 2089°F67°F103°F 195648°F 198122%0%
Sep 2189°F67°F102°F 195649°F 200622%0%
Sep 2288°F67°F102°F 190946°F 198322%0%
Sep 2388°F66°F102°F 200546°F 198322%0%
Sep 2488°F66°F100°F 191250°F 198322%0%
Sep 2588°F66°F98°F 197749°F 198922%0%
Sep 2687°F65°F105°F 200551°F 197521%0%
Sep 2787°F65°F105°F 200543°F 194221%0%
Sep 2887°F65°F104°F 200544°F 194221%0%
Sep 2987°F65°F103°F 200546°F 196721%0%
Sep 3087°F64°F100°F 192646°F 196721%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Brenham, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 7:03 AM, sunset 7:48 PM
September 30
sunrise 7:19 AM, sunset 7:12 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00411048 (Brenham), public domain. Records: NOAA GHCN-Daily, station USC00411048, 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.