Valmeyer climate

Valmeyer Weather in September

NOAA 1991-2020 normals for Festus, 13.4 km from Valmeyer

Average highs run from 85°F on September 1 to 76°F on September 30, and lows from 62°F to 52°F. Normal precipitation for the month is 3.38 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 Valmeyer, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
81°F
Average low
57°F
Precipitation
3.38 in
Record high
102°FSep 1, 2011
Record low
35°FSep 25, 2001
Chance of a freeze
0%
Days of 90°F or more
4.4
Daylight
13 h 00 min to 11 h 49 min
Cloud cover
46%
Humidity
68%
Dew point
56°F
Wind
5.1 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 185°F62°F102°F 201145°F 200922%0%
Sep 284°F62°F101°F 201146°F 201722%0%
Sep 384°F62°F100°F 201150°F 200922%0%
Sep 484°F61°F100°F 202647°F 199722%0%
Sep 584°F61°F102°F 202644°F 199722%0%
Sep 683°F61°F96°F 199849°F 200322%0%
Sep 783°F60°F96°F 200244°F 201721%0%
Sep 883°F60°F95°F 200242°F 202421%0%
Sep 983°F60°F97°F 201343°F 202421%0%
Sep 1082°F59°F98°F 201345°F 202421%0%
Sep 1182°F59°F98°F 201347°F 201721%0%
Sep 1282°F59°F94°F 202547°F 199721%0%
Sep 1382°F58°F96°F 202546°F 201421%0%
Sep 1481°F58°F97°F 202542°F 201421%0%
Sep 1581°F57°F100°F 202643°F 200721%0%
Sep 1681°F57°F95°F 201942°F 200021%0%
Sep 1780°F57°F98°F 202642°F 199921%0%
Sep 1880°F56°F95°F 202544°F 199922%0%
Sep 1980°F56°F96°F 202242°F 201222%0%
Sep 2079°F56°F99°F 201738°F 200622%0%
Sep 2179°F55°F97°F 202242°F 200022%0%
Sep 2279°F55°F98°F 201737°F 199922%0%
Sep 2378°F54°F95°F 201738°F 201222%0%
Sep 2478°F54°F95°F 201738°F 201222%0%
Sep 2578°F54°F95°F 201735°F 200122%0%
Sep 2677°F53°F93°F 201735°F 200022%0%
Sep 2777°F53°F92°F 199840°F 200022%0%
Sep 2877°F52°F90°F 202139°F 202222%0%
Sep 2976°F52°F92°F 201938°F 200322%0%
Sep 3076°F52°F92°F 201936°F 199922%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Valmeyer, 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 6:31 AM, sunset 7:31 PM
September 30
sunrise 6:56 AM, sunset 6:45 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00232850 (Festus), public domain. Records: NOAA GHCN-Daily, station USW00003960, 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.