Warren County climate

Warren County Weather in September

NOAA 1991-2020 normals for Indianola 2W, 8.1 km from Warren County

Average highs run from 82°F on September 1 to 72°F on September 30, and lows from 58°F to 47°F. Normal precipitation for the month is 3.86 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 Warren 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
52°F
Precipitation
3.86 in
Record high
101°FSep 9, 2013
Record low
28°FSep 29, 1984
Chance of a freeze
17%
Days of 90°F or more
2.3
Daylight
13 h 06 min to 11 h 48 min
Cloud cover
47%
Humidity
68%
Dew point
53°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°F58°F98°F 198438°F 194927%0%
Sep 282°F58°F98°F 200045°F 194627%0%
Sep 381°F57°F96°F 198340°F 197427%0%
Sep 481°F57°F97°F 201242°F 197427%0%
Sep 581°F57°F96°F 199045°F 196227%0%
Sep 681°F56°F97°F 199042°F 198826%0%
Sep 780°F56°F97°F 197841°F 198626%0%
Sep 880°F56°F99°F 194740°F 198626%0%
Sep 980°F55°F101°F 201344°F 199526%0%
Sep 1080°F55°F99°F 201344°F 197626%0%
Sep 1179°F54°F97°F 200040°F 195526%0%
Sep 1279°F54°F94°F 198442°F 197526%0%
Sep 1379°F54°F96°F 202539°F 194926%0%
Sep 1478°F53°F92°F 195539°F 199626%0%
Sep 1578°F53°F96°F 195537°F 200726%0%
Sep 1678°F52°F94°F 195538°F 198426%0%
Sep 1777°F52°F93°F 195338°F 198026%0%
Sep 1877°F52°F93°F 194738°F 199126%0%
Sep 1977°F51°F96°F 194833°F 199126%0%
Sep 2076°F51°F94°F 202233°F 199126%0%
Sep 2176°F50°F93°F 200535°F 199526%0%
Sep 2276°F50°F92°F 201731°F 199526%0%
Sep 2375°F49°F92°F 201732°F 198326%0%
Sep 2475°F49°F92°F 201732°F 196526%0%
Sep 2575°F49°F88°F 195637°F 194726%0%
Sep 2674°F48°F90°F 195631°F 198426%0%
Sep 2774°F48°F91°F 195637°F 195125%0%
Sep 2873°F47°F99°F 195331°F 195125%0%
Sep 2973°F47°F91°F 202328°F 198425%0%
Sep 3072°F47°F92°F 195230°F 198425%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Warren 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 6:41 AM, sunset 7:47 PM
September 30
sunrise 7:10 AM, sunset 6:58 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00134063 (Indianola 2W), public domain. Records: NOAA GHCN-Daily, station USW00014933, 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.