Chesterfield climate

Chesterfield Weather in September

NOAA 1991-2020 normals for Chesterfield 3 E, 4.7 km from Chesterfield

Average highs run from 89°F on September 1 to 81°F on September 30, and lows from 67°F to 58°F. Normal precipitation for the month is 5.05 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 Chesterfield, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
85°F
Average low
63°F
Precipitation
5.05 in
Record high
107°FSep 4, 1925
Record low
40°FSep 22, 1918
Chance of a freeze
0%
Days of 90°F or more
10.2
Daylight
12 h 54 min to 11 h 52 min
Cloud cover
52%
Humidity
72%
Dew point
63°F
Wind
6.9 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 189°F67°F100°F 191253°F 19760%
Sep 289°F67°F101°F 192149°F 19670%
Sep 388°F67°F101°F 194449°F 19670%
Sep 488°F67°F107°F 192550°F 19670%
Sep 588°F66°F101°F 192548°F 19970%
Sep 688°F66°F102°F 192148°F 19970%
Sep 788°F66°F106°F 192548°F 19240%
Sep 887°F66°F103°F 195448°F 20170%
Sep 987°F66°F103°F 193951°F 19660%
Sep 1087°F65°F100°F 193945°F 19560%
Sep 1187°F65°F97°F 190046°F 19140%
Sep 1287°F65°F99°F 196246°F 19170%
Sep 1386°F64°F100°F 190046°F 19400%
Sep 1486°F64°F98°F 190044°F 20010%
Sep 1586°F64°F98°F 195647°F 19850%
Sep 1686°F64°F99°F 193144°F 19670%
Sep 1785°F63°F100°F 193147°F 19080%
Sep 1885°F63°F101°F 193147°F 19100%
Sep 1985°F63°F100°F 195447°F 20010%
Sep 2084°F62°F99°F 195446°F 19840%
Sep 2184°F62°F99°F 192543°F 19620%
Sep 2284°F61°F99°F 195440°F 19180%
Sep 2384°F61°F100°F 193140°F 19180%
Sep 2483°F61°F98°F 198040°F 18960%
Sep 2583°F60°F97°F 196142°F 18960%
Sep 2683°F60°F96°F 193140°F 19500%
Sep 2782°F59°F95°F 193943°F 19140%
Sep 2882°F59°F97°F 190041°F 18990%
Sep 2982°F59°F96°F 194140°F 19090%
Sep 3081°F58°F94°F 201940°F 19670%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Chesterfield, 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 (EDT).

September 1
sunrise 6:53 AM, sunset 7:47 PM
September 30
sunrise 7:14 AM, sunset 7:06 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00381645 (Chesterfield 3 E), public domain. Records: NOAA GHCN-Daily, station USC00381588, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.