Maplewood climate

Maplewood Weather in September

NOAA 1991-2020 normals for St Louis Sci Ctr, 5.1 km from Maplewood

Average highs run from 86°F on September 1 to 76°F on September 30, and lows from 67°F to 56°F. Normal precipitation for the month is 3.41 in.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Maplewood, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
82°F
Average low
62°F
Precipitation
3.41 in
Record high
102°FSep 1, 2011
Record low
35°FSep 25, 2001
Chance of a freeze
0%
Days of 90°F or more
5.1
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 186°F67°F102°F 201145°F 20090%
Sep 286°F67°F101°F 201146°F 20170%
Sep 386°F66°F100°F 201150°F 20090%
Sep 485°F66°F100°F 202647°F 19970%
Sep 585°F66°F102°F 202644°F 19970%
Sep 685°F65°F96°F 199849°F 20030%
Sep 785°F65°F96°F 200244°F 20170%
Sep 884°F65°F95°F 200242°F 20240%
Sep 984°F64°F97°F 201343°F 20240%
Sep 1084°F64°F98°F 201345°F 20240%
Sep 1183°F64°F98°F 201347°F 20170%
Sep 1283°F63°F94°F 202547°F 19970%
Sep 1383°F63°F96°F 202546°F 20140%
Sep 1482°F62°F97°F 202542°F 20140%
Sep 1582°F62°F100°F 202643°F 20070%
Sep 1682°F62°F95°F 201942°F 20000%
Sep 1781°F61°F98°F 202642°F 19990%
Sep 1881°F61°F95°F 202544°F 19990%
Sep 1980°F61°F96°F 202242°F 20120%
Sep 2080°F60°F99°F 201738°F 20060%
Sep 2180°F60°F97°F 202242°F 20000%
Sep 2279°F59°F98°F 201737°F 19990%
Sep 2379°F59°F95°F 201738°F 20120%
Sep 2479°F59°F95°F 201738°F 20120%
Sep 2578°F58°F95°F 201735°F 20010%
Sep 2678°F58°F93°F 201735°F 20000%
Sep 2777°F57°F92°F 199840°F 20000%
Sep 2877°F57°F90°F 202139°F 20220%
Sep 2977°F57°F92°F 201938°F 20030%
Sep 3076°F56°F92°F 201936°F 19990%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Maplewood, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • 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 USC00237452 (St Louis Sci Ctr), 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.