Van Buren County climate

Van Buren County Weather in September

NOAA 1991-2020 normals for Keosauqua, 2.5 km from Van Buren County

Average highs run from 82°F on September 1 to 72°F on September 30, and lows from 58°F to 48°F. Normal precipitation for the month is 3.69 in over about 7 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 Van Buren 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
53°F
Precipitation
3.69 in
Record high
103°FSep 1, 1953
Record low
23°FSep 28, 1942
Chance of a freeze
16%
Days of 90°F or more
4.0
Daylight
13 h 05 min to 11 h 48 min
Cloud cover
47%
Humidity
70%
Dew point
54°F
Wind
9.2 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°F103°F 195339°F 194924%0%
Sep 282°F58°F100°F 195340°F 189524%0%
Sep 381°F58°F99°F 194740°F 192823%0%
Sep 481°F57°F103°F 192539°F 197423%0%
Sep 581°F57°F102°F 192540°F 196223%0%
Sep 681°F57°F100°F 193642°F 191423%0%
Sep 780°F56°F98°F 193940°F 195623%0%
Sep 880°F56°F100°F 194740°F 198623%0%
Sep 980°F56°F100°F 194741°F 192423%0%
Sep 1080°F55°F100°F 201337°F 191023%0%
Sep 1179°F55°F99°F 193632°F 191723%0%
Sep 1279°F55°F99°F 192735°F 190223%0%
Sep 1379°F54°F100°F 192732°F 190223%0%
Sep 1478°F54°F100°F 192732°F 192322%0%
Sep 1578°F53°F101°F 192734°F 200722%0%
Sep 1678°F53°F93°F 193130°F 199922%0%
Sep 1777°F53°F101°F 192733°F 190022%0%
Sep 1877°F52°F95°F 195332°F 192922%0%
Sep 1977°F52°F95°F 194833°F 199122%0%
Sep 2076°F52°F93°F 194030°F 189622%0%
Sep 2176°F51°F94°F 194034°F 198322%0%
Sep 2275°F51°F96°F 193031°F 195322%0%
Sep 2375°F51°F90°F 201729°F 198322%0%
Sep 2475°F50°F92°F 201732°F 192822%0%
Sep 2574°F50°F90°F 189732°F 192822%0%
Sep 2674°F49°F93°F 189725°F 192622%0%
Sep 2774°F49°F90°F 195430°F 194222%0%
Sep 2873°F49°F100°F 195323°F 194222%0%
Sep 2973°F48°F95°F 195328°F 189922%0%
Sep 3072°F48°F92°F 189727°F 189922%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Van Buren County, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:35 AM, sunset 7:40 PM
September 30
sunrise 7:03 AM, sunset 6:51 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00134389 (Keosauqua), public domain. Records: NOAA GHCN-Daily, station USC00132789, 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.