Westminster climate

Westminster Weather in September

NOAA 1991-2020 normals for Lsu Ben-Hur Farm, 9.4 km from Westminster

Average highs run from 90°F on September 1 to 85°F on September 30, and lows from 71°F to 64°F. Normal precipitation for the month is 4.45 in over about 9 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 Westminster, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
88°F
Average low
68°F
Precipitation
4.45 in
Record high
104°FSep 4, 2000
Record low
43°FSep 29, 1967
Chance of a freeze
0%
Days of 90°F or more
14.1
Daylight
12 h 46 min to 11 h 54 min
Cloud cover
46%
Humidity
78%
Dew point
69°F
Wind
5.6 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 190°F71°F100°F 200063°F 193637%0%
Sep 290°F71°F102°F 200060°F 196737%0%
Sep 390°F71°F103°F 200060°F 195237%0%
Sep 489°F71°F104°F 200058°F 195236%0%
Sep 589°F71°F101°F 200057°F 195236%0%
Sep 689°F71°F100°F 202356°F 193435%0%
Sep 789°F70°F100°F 202354°F 201135%0%
Sep 889°F70°F98°F 201956°F 193434%0%
Sep 989°F70°F97°F 201955°F 201134%0%
Sep 1089°F70°F97°F 195458°F 201133%0%
Sep 1189°F70°F96°F 193957°F 194333%0%
Sep 1288°F69°F96°F 193949°F 194033%0%
Sep 1388°F69°F97°F 201949°F 194032%0%
Sep 1488°F69°F95°F 197252°F 194032%0%
Sep 1588°F69°F96°F 193355°F 194531%0%
Sep 1688°F68°F97°F 193355°F 196131%0%
Sep 1788°F68°F97°F 193355°F 196130%0%
Sep 1888°F68°F98°F 201852°F 198130%0%
Sep 1987°F67°F97°F 201849°F 198130%0%
Sep 2087°F67°F98°F 200549°F 193829%0%
Sep 2187°F67°F97°F 202249°F 193829%0%
Sep 2287°F66°F97°F 202246°F 198328%0%
Sep 2387°F66°F95°F 202348°F 199928%0%
Sep 2486°F66°F97°F 202249°F 193828%0%
Sep 2586°F65°F94°F 202253°F 202127%0%
Sep 2686°F65°F93°F 193349°F 197527%0%
Sep 2786°F65°F97°F 202348°F 194226%0%
Sep 2886°F64°F97°F 195347°F 196726%0%
Sep 2985°F64°F95°F 193343°F 196725%0%
Sep 3085°F64°F96°F 202344°F 196725%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Westminster, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:41 AM, sunset 7:27 PM
September 30
sunrise 6:57 AM, sunset 6:51 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00165620 (Lsu Ben-Hur Farm), public domain. Records: NOAA GHCN-Daily, station USW00013970, 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.