Henry County climate

Henry County Weather in September

NOAA 1991-2020 normals for Geneseo, 11 km from Henry County

Average highs run from 81°F on September 1 to 72°F on September 30, and lows from 60°F to 49°F. Normal precipitation for the month is 3.57 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 Henry County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
77°F
Average low
55°F
Precipitation
3.57 in
Record high
99°FSep 1, 1953
Record low
30°FSep 20, 1956
Chance of a freeze
4%
Days of 90°F or more
2.2
Daylight
13 h 06 min to 11 h 48 min
Cloud cover
48%
Humidity
71%
Dew point
54°F
Wind
8.9 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 181°F60°F99°F 195341°F 196728%0%
Sep 281°F59°F99°F 195338°F 194628%0%
Sep 381°F59°F96°F 194743°F 197427%0%
Sep 481°F59°F97°F 195439°F 197427%0%
Sep 581°F58°F95°F 195442°F 197427%0%
Sep 680°F58°F98°F 196040°F 198827%0%
Sep 780°F58°F97°F 196039°F 195627%0%
Sep 880°F57°F95°F 197138°F 198627%0%
Sep 980°F57°F99°F 201343°F 200827%0%
Sep 1079°F57°F97°F 201342°F 194327%0%
Sep 1179°F56°F97°F 200041°F 196727%0%
Sep 1279°F56°F95°F 199138°F 195527%0%
Sep 1378°F56°F96°F 202537°F 195327%0%
Sep 1478°F55°F92°F 202538°F 201427%0%
Sep 1578°F55°F92°F 195536°F 200727%0%
Sep 1677°F54°F90°F 201837°F 198427%0%
Sep 1777°F54°F95°F 198837°F 194327%0%
Sep 1877°F54°F92°F 194736°F 195926%0%
Sep 1976°F53°F93°F 194834°F 199126%0%
Sep 2076°F53°F95°F 202230°F 195626%0%
Sep 2175°F52°F92°F 200732°F 199126%0%
Sep 2275°F52°F93°F 201732°F 199526%0%
Sep 2375°F52°F94°F 201731°F 199526%0%
Sep 2474°F51°F91°F 200730°F 198926%0%
Sep 2574°F51°F91°F 201735°F 198926%0%
Sep 2673°F51°F89°F 199834°F 197526%0%
Sep 2773°F50°F90°F 199033°F 198526%0%
Sep 2873°F50°F95°F 195333°F 195726%0%
Sep 2972°F49°F99°F 195330°F 194926%0%
Sep 3072°F49°F92°F 195230°F 198426%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Henry County, 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 6:27 AM, sunset 7:33 PM
September 30
sunrise 6:56 AM, sunset 6:44 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00113384 (Geneseo), public domain. Records: NOAA GHCN-Daily, station USW00014923, 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.