Clarke County climate

Clarke County Weather in September

NOAA 1991-2020 normals for Osceola, 3.1 km from Clarke County

Average highs run from 82°F on September 1 to 73°F on September 30, and lows from 57°F to 46°F. Normal precipitation for the month is 3.85 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 Clarke County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
78°F
Average low
51°F
Precipitation
3.85 in
Record high
103°FSep 21, 1937
Record low
23°FSep 28, 1942
Chance of a freeze
25%
Days of 90°F or more
3.0
Daylight
13 h 05 min to 11 h 48 min
Cloud cover
47%
Humidity
70%
Dew point
54°F
Wind
9.8 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 182°F57°F101°F 193742°F 194927%0%
Sep 282°F57°F100°F 193744°F 197427%0%
Sep 382°F56°F102°F 193934°F 197427%0%
Sep 482°F56°F98°F 194740°F 197427%0%
Sep 581°F56°F99°F 189939°F 196227%0%
Sep 681°F55°F100°F 193940°F 196227%0%
Sep 781°F55°F101°F 193941°F 195527%0%
Sep 881°F54°F101°F 194740°F 198627%0%
Sep 980°F54°F98°F 194736°F 200827%0%
Sep 1080°F54°F99°F 201340°F 200827%0%
Sep 1180°F53°F99°F 201338°F 195927%0%
Sep 1279°F53°F96°F 189735°F 190227%0%
Sep 1379°F52°F97°F 189734°F 197427%0%
Sep 1479°F52°F98°F 193937°F 197427%0%
Sep 1579°F52°F98°F 193931°F 200727%0%
Sep 1678°F51°F94°F 195533°F 200727%0%
Sep 1778°F51°F96°F 195334°F 190127%0%
Sep 1878°F50°F94°F 197232°F 190127%0%
Sep 1977°F50°F96°F 194830°F 199127%0%
Sep 2077°F50°F91°F 194830°F 199127%0%
Sep 2176°F49°F103°F 193732°F 199127%0%
Sep 2276°F49°F102°F 193728°F 197427%0%
Sep 2376°F48°F92°F 201729°F 199527%0%
Sep 2475°F48°F92°F 201729°F 194227%0%
Sep 2575°F48°F91°F 201731°F 201227%0%
Sep 2674°F47°F92°F 189730°F 198027%0%
Sep 2774°F47°F92°F 195629°F 194227%0%
Sep 2874°F46°F100°F 195323°F 194227%0%
Sep 2973°F46°F92°F 202123°F 189927%0%
Sep 3073°F46°F92°F 189726°F 189927%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Clarke 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 6:42 AM, sunset 7:47 PM
September 30
sunrise 7:11 AM, sunset 6:59 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00136316 (Osceola), public domain. Records: NOAA GHCN-Daily, station USC00136316, 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.