Decatur climate

Decatur Weather in October

NOAA 1991-2020 normals for Decatur 4SE, 5.6 km from Decatur

Average highs run from 80°F on October 1 to 68°F on October 31, and lows from 56°F to 45°F. Normal precipitation for the month is 3.92 in.

October day by day

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

Normal daily high and low temperature at Decatur, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
74°F
Average low
50°F
Precipitation
3.92 in
Record high
99°FOct 3, 2019
Record low
27°FOct 9, 2000
Chance of a freeze
23%
Daylight
11 h 49 min to 10 h 48 min
Cloud cover
46%
Humidity
71%
Dew point
51°F
Wind
5.6 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
Oct 180°F56°F97°F 201938°F 19990%
Oct 279°F56°F98°F 201935°F 20030%
Oct 379°F56°F99°F 201936°F 20030%
Oct 479°F55°F94°F 201937°F 20140%
Oct 578°F55°F96°F 201936°F 20140%
Oct 678°F54°F91°F 201834°F 20100%
Oct 777°F54°F91°F 200733°F 20000%
Oct 877°F54°F92°F 200734°F 20000%
Oct 977°F53°F89°F 201727°F 20000%
Oct 1076°F53°F88°F 201030°F 20000%
Oct 1176°F52°F89°F 201030°F 20000%
Oct 1276°F52°F83°F 201334°F 20000%
Oct 1375°F51°F87°F 202434°F 20060%
Oct 1475°F51°F84°F 201738°F 20060%
Oct 1574°F51°F86°F 201734°F 20060%
Oct 1674°F50°F85°F 200035°F 20100%
Oct 1774°F50°F86°F 200734°F 20200%
Oct 1873°F49°F88°F 201632°F 20150%
Oct 1973°F49°F90°F 201629°F 20150%
Oct 2073°F49°F85°F 200528°F 20220%
Oct 2172°F48°F86°F 200332°F 20220%
Oct 2272°F48°F83°F 200032°F 20180%
Oct 2371°F48°F83°F 200034°F 19970%
Oct 2471°F47°F84°F 201030°F 19990%
Oct 2571°F47°F86°F 202428°F 19990%
Oct 2670°F46°F85°F 201027°F 20130%
Oct 2770°F46°F85°F 200432°F 20010%
Oct 2870°F46°F86°F 202330°F 20010%
Oct 2969°F45°F86°F 201629°F 20080%
Oct 3069°F45°F85°F 200028°F 20080%
Oct 3168°F45°F87°F 201631°F 20190%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Decatur, 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).

October 1
sunrise 6:43 AM, sunset 6:32 PM
October 31
sunrise 7:07 AM, sunset 5:55 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00012209 (Decatur 4SE), public domain. Records: NOAA GHCN-Daily, station USW00053852, 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.