Clay County climate

Clay County Weather in September

NOAA 1991-2020 normals for Spencer 1 N, 9.2 km from Clay County

Average highs run from 79°F on September 1 to 69°F on September 30, and lows from 55°F to 44°F. Normal precipitation for the month is 3.29 in over about 8 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 Clay County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
75°F
Average low
50°F
Precipitation
3.29 in
Record high
101°FSep 20, 2022
Record low
22°FSep 23, 2012
Chance of a freeze
42%
Days of 90°F or more
1.4
Daylight
13 h 10 min to 11 h 46 min
Cloud cover
49%
Humidity
66%
Dew point
51°F
Wind
10.7 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 179°F55°F92°F 202240°F 200927%0%
Sep 279°F55°F98°F 202344°F 202427%0%
Sep 378°F55°F96°F 202340°F 200627%0%
Sep 478°F55°F98°F 202337°F 202527%0%
Sep 578°F54°F91°F 201539°F 202527%0%
Sep 678°F54°F96°F 202034°F 202527%0%
Sep 777°F54°F94°F 201334°F 202527%0%
Sep 877°F53°F92°F 200238°F 201027%0%
Sep 977°F53°F96°F 201337°F 200827%0%
Sep 1077°F52°F92°F 200539°F 199927%0%
Sep 1176°F52°F94°F 201237°F 200728%0%
Sep 1276°F52°F94°F 199834°F 201428%0%
Sep 1376°F51°F95°F 202532°F 201428%0%
Sep 1476°F51°F91°F 202231°F 201128%
Sep 1575°F51°F92°F 201828°F 200728%
Sep 1675°F50°F93°F 202534°F 199928%
Sep 1775°F50°F92°F 200738°F 201228%
Sep 1874°F49°F91°F 201331°F 201228%
Sep 1974°F49°F94°F 199831°F 200628%
Sep 2073°F49°F101°F 202227°F 200628%
Sep 2173°F48°F94°F 200524°F 199928%
Sep 2273°F48°F94°F 201730°F 201228%
Sep 2372°F47°F89°F 201722°F 201228%
Sep 2472°F47°F89°F 201729°F 200128%
Sep 2571°F47°F89°F 202027°F 200028%
Sep 2671°F46°F91°F 202129°F 201228%
Sep 2770°F46°F90°F 201329°F 201228%
Sep 2870°F45°F89°F 202427°F 202228%
Sep 2970°F45°F95°F 202325°F 199928%
Sep 3069°F44°F96°F 202327°F 200328%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Clay County, 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 6:45 AM, sunset 7:55 PM
September 30
sunrise 7:17 AM, sunset 7:03 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00137844 (Spencer 1 N), public domain. Records: NOAA GHCN-Daily, station USW00014972, 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.