Grain Valley climate

Grain Valley Weather in September

NOAA 1991-2020 normals for Independence, 17.1 km from Grain Valley

Average highs run from 83°F on September 1 to 73°F on September 30, and lows from 62°F to 52°F. Normal precipitation for the month is 4.77 in over about 9 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 Grain Valley, 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
57°F
Precipitation
4.77 in
Record high
100°FSep 1, 2011
Record low
38°FSep 23, 2012
Chance of a freeze
0%
Days of 90°F or more
2.9
Daylight
13 h 01 min to 11 h 49 min
Cloud cover
45%
Humidity
70%
Dew point
57°F
Wind
8.7 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 183°F62°F100°F 201152°F 200929%0%
Sep 283°F62°F99°F 202657°F 202429%0%
Sep 382°F61°F98°F 202655°F 201029%0%
Sep 482°F61°F97°F 202351°F 201029%0%
Sep 582°F61°F99°F 202649°F 200829%0%
Sep 682°F60°F99°F 202648°F 201729%0%
Sep 781°F60°F96°F 201349°F 201129%0%
Sep 881°F60°F100°F 201349°F 201129%0%
Sep 981°F59°F96°F 201351°F 200829%0%
Sep 1080°F59°F94°F 201353°F 200729%0%
Sep 1180°F59°F94°F 201348°F 200729%0%
Sep 1280°F58°F90°F 201143°F 201429%0%
Sep 1379°F58°F95°F 202539°F 201429%0%
Sep 1479°F58°F95°F 202649°F 201129%0%
Sep 1579°F57°F94°F 202644°F 200729%0%
Sep 1678°F57°F95°F 202547°F 201429%0%
Sep 1778°F57°F95°F 202651°F 201229%0%
Sep 1878°F56°F97°F 202247°F 201229%0%
Sep 1977°F56°F97°F 202243°F 200329%0%
Sep 2077°F55°F98°F 202246°F 200629%0%
Sep 2177°F55°F91°F 201749°F 201329%0%
Sep 2276°F55°F90°F 201746°F 201229%0%
Sep 2376°F54°F90°F 201738°F 201229%0%
Sep 2476°F54°F90°F 201747°F 200228%0%
Sep 2575°F54°F88°F 201742°F 201128%0%
Sep 2675°F53°F89°F 202043°F 201128%0%
Sep 2774°F53°F91°F 201944°F 201028%0%
Sep 2874°F52°F88°F 200242°F 200328%0%
Sep 2974°F52°F91°F 202338°F 200328%0%
Sep 3073°F52°F91°F 202342°F 200328%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Grain Valley, 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 6:46 AM, sunset 7:47 PM
September 30
sunrise 7:12 AM, sunset 7:01 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00234154 (Independence), public domain. Records: NOAA GHCN-Daily, station USW00053879, 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.