St. Clair County climate

St. Clair County Weather in October

NOAA 1991-2020 normals for Oneonta, 25.4 km from St. Clair County

Average highs run from 80°F on October 1 to 70°F on October 31, and lows from 57°F to 46°F. Normal precipitation for the month is 3.40 in over about 6 wet days.

October day by day

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

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

October at a glance

Average high
75°F
Average low
51°F
Precipitation
3.40 in
Record high
100°FOct 4, 2019
Record low
23°FOct 25, 1965
Chance of a freeze
20%
Daylight
11 h 49 min to 10 h 50 min
Cloud cover
44%
Humidity
71%
Dew point
52°F
Wind
4.5 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°F57°F98°F 201937°F 197218%0%
Oct 280°F57°F98°F 201936°F 192018%0%
Oct 380°F56°F98°F 201934°F 198118%0%
Oct 479°F56°F100°F 201931°F 198719%0%
Oct 579°F56°F99°F 195433°F 198719%0%
Oct 679°F55°F98°F 195435°F 201019%0%
Oct 778°F55°F96°F 192532°F 193219%0%
Oct 878°F55°F95°F 194130°F 199119%0%
Oct 978°F54°F94°F 194130°F 197819%0%
Oct 1077°F54°F93°F 193830°F 200019%0%
Oct 1177°F53°F92°F 195429°F 200019%0%
Oct 1277°F53°F91°F 193132°F 200019%0%
Oct 1376°F53°F90°F 194931°F 190920%0%
Oct 1476°F52°F91°F 195429°F 198820%0%
Oct 1575°F52°F89°F 194129°F 197820%0%
Oct 1675°F51°F88°F 191130°F 198720%0%
Oct 1775°F51°F88°F 193830°F 197820%0%
Oct 1874°F51°F98°F 190429°F 202220%0%
Oct 1974°F50°F92°F 193828°F 202220%0%
Oct 2074°F50°F91°F 194127°F 196420%0%
Oct 2173°F49°F92°F 194127°F 191321%0%
Oct 2273°F49°F94°F 194124°F 198721%0%
Oct 2372°F49°F94°F 194130°F 190421%0%
Oct 2472°F48°F89°F 193125°F 193721%0%
Oct 2572°F48°F87°F 192723°F 196521%0%
Oct 2671°F48°F90°F 193124°F 196522%0%
Oct 2771°F47°F90°F 194027°F 196222%0%
Oct 2871°F47°F87°F 194025°F 195722%0%
Oct 2970°F47°F87°F 194425°F 195222%0%
Oct 3070°F46°F88°F 192723°F 195223%0%
Oct 3170°F46°F87°F 193725°F 195423%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at St. Clair 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).

October 1
sunrise 6:40 AM, sunset 6:29 PM
October 31
sunrise 7:04 AM, sunset 5:54 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00016121 (Oneonta), public domain. Records: NOAA GHCN-Daily, station USC00018024, 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.