Normal climate

Normal Weather in September

NOAA 1991-2020 normals for Normal 4NE, 5.2 km from Normal

Average highs run from 83°F on September 1 to 74°F on September 30, and lows from 58°F to 48°F. Normal precipitation for the month is 3.22 in over about 8 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 Normal, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
79°F
Average low
53°F
Precipitation
3.22 in
Record high
101°FSep 2, 2011
Record low
31°FSep 30, 1984
Chance of a freeze
7%
Days of 90°F or more
3.0
Daylight
13 h 05 min to 11 h 48 min
Cloud cover
47%
Humidity
71%
Dew point
55°F
Wind
8.7 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 183°F58°F97°F 201342°F 200928%0%
Sep 283°F58°F101°F 201142°F 200927%0%
Sep 382°F57°F100°F 201142°F 201727%0%
Sep 482°F57°F98°F 202645°F 202427%0%
Sep 582°F57°F99°F 202645°F 198827%0%
Sep 682°F57°F95°F 199040°F 198827%0%
Sep 782°F56°F97°F 201542°F 198827%0%
Sep 881°F56°F95°F 201539°F 198627%0%
Sep 981°F56°F96°F 198339°F 202427%0%
Sep 1081°F55°F98°F 201341°F 199327%0%
Sep 1181°F55°F99°F 201340°F 199327%0%
Sep 1280°F54°F97°F 201341°F 200727%0%
Sep 1380°F54°F94°F 199138°F 201427%0%
Sep 1480°F54°F97°F 202539°F 201327%0%
Sep 1579°F53°F91°F 202535°F 200727%0%
Sep 1679°F53°F99°F 202635°F 200727%0%
Sep 1779°F53°F92°F 201835°F 200727%0%
Sep 1878°F52°F93°F 201833°F 199127%0%
Sep 1978°F52°F93°F 201832°F 199127%0%
Sep 2078°F51°F94°F 201332°F 199127%0%
Sep 2177°F51°F96°F 202232°F 199127%0%
Sep 2277°F51°F93°F 198834°F 199527%0%
Sep 2377°F50°F95°F 201732°F 199527%0%
Sep 2476°F50°F93°F 201734°F 199527%0%
Sep 2576°F49°F93°F 200736°F 199527%0%
Sep 2675°F49°F92°F 201735°F 198427%0%
Sep 2775°F49°F90°F 201732°F 199127%0%
Sep 2874°F48°F89°F 202135°F 202227%0%
Sep 2974°F48°F90°F 202533°F 198427%0%
Sep 3074°F48°F91°F 202131°F 198427%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Normal, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:23 AM, sunset 7:28 PM
September 30
sunrise 6:52 AM, sunset 6:40 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00116200 (Normal 4NE), public domain. Records: NOAA GHCN-Daily, station USC00116200, 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.