Brentwood climate

Brentwood Weather in September

NOAA 1991-2020 normals for Brentwood, 4.8 km from Brentwood

Average highs run from 88°F on September 1 to 79°F on September 30, and lows from 61°F to 52°F. Normal precipitation for the month is 4.00 in.

September day by day

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

Normal daily high and low temperature at Brentwood, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
84°F
Average low
57°F
Precipitation
4.00 in
Record high
105°FSep 5, 1954
Record low
36°FSep 22, 1983
Chance of a freeze
1%
Days of 90°F or more
6.4
Daylight
12 h 56 min to 11 h 51 min
Cloud cover
48%
Humidity
68%
Dew point
59°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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 188°F61°F102°F 195352°F 19670%
Sep 287°F61°F99°F 201149°F 19490%
Sep 387°F61°F101°F 195453°F 19520%
Sep 487°F61°F104°F 195450°F 19520%
Sep 587°F60°F105°F 195448°F 19970%
Sep 687°F60°F103°F 195451°F 19880%
Sep 786°F60°F102°F 199049°F 19880%
Sep 886°F59°F97°F 195550°F 20170%
Sep 986°F59°F99°F 198350°F 19560%
Sep 1086°F59°F99°F 201948°F 19980%
Sep 1185°F59°F100°F 198345°F 19760%
Sep 1285°F58°F97°F 201947°F 19680%
Sep 1385°F58°F99°F 201948°F 19680%
Sep 1484°F58°F99°F 198044°F 19640%
Sep 1584°F57°F100°F 202648°F 19640%
Sep 1684°F57°F99°F 201943°F 19610%
Sep 1783°F57°F99°F 202645°F 19610%
Sep 1883°F56°F99°F 195344°F 19810%
Sep 1983°F56°F97°F 195441°F 19810%
Sep 2082°F56°F99°F 202244°F 19910%
Sep 2182°F55°F100°F 202243°F 19830%
Sep 2282°F55°F97°F 195536°F 19830%
Sep 2381°F55°F94°F 201042°F 19820%
Sep 2481°F54°F94°F 196136°F 19830%
Sep 2581°F54°F94°F 201641°F 19650%
Sep 2680°F53°F91°F 201738°F 20010%
Sep 2780°F53°F95°F 201942°F 20000%
Sep 2880°F53°F94°F 195343°F 19750%
Sep 2979°F52°F98°F 195339°F 19670%
Sep 3079°F52°F98°F 201936°F 19490%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Brentwood, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:19 AM, sunset 7:15 PM
September 30
sunrise 6:41 AM, sunset 6:32 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00401039 (Brentwood), public domain. Records: NOAA GHCN-Daily, station USW00013897, 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.