Cedar County climate

Cedar County Weather in September

NOAA 1991-2020 normals for Stockton Dam, 8 km from Cedar County

Average highs run from 87°F on September 1 to 77°F on September 30, and lows from 65°F to 54°F. Normal precipitation for the month is 4.13 in over about 7 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 Cedar County, 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
60°F
Precipitation
4.13 in
Record high
104°FSep 4, 1947
Record low
30°FSep 27, 1942
Chance of a freeze
1%
Days of 90°F or more
4.9
Daylight
12 h 58 min to 11 h 50 min
Cloud cover
45%
Humidity
69%
Dew point
58°F
Wind
8.3 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 187°F65°F102°F 200043°F 196724%0%
Sep 287°F65°F101°F 200049°F 195224%0%
Sep 386°F64°F102°F 200041°F 197424%0%
Sep 486°F64°F104°F 194739°F 197424%0%
Sep 586°F64°F101°F 202647°F 197424%0%
Sep 685°F63°F101°F 202645°F 197424%0%
Sep 785°F63°F104°F 194744°F 201124%0%
Sep 885°F63°F100°F 202645°F 195624%0%
Sep 984°F62°F101°F 202642°F 194324%0%
Sep 1084°F62°F96°F 198438°F 197624%0%
Sep 1184°F62°F96°F 200037°F 194024%0%
Sep 1283°F61°F96°F 198036°F 194024%0%
Sep 1383°F61°F99°F 201141°F 196024%0%
Sep 1483°F60°F98°F 197143°F 197424%0%
Sep 1582°F60°F100°F 202638°F 196124%0%
Sep 1682°F60°F98°F 202641°F 196125%0%
Sep 1781°F59°F98°F 202640°F 198125%0%
Sep 1881°F59°F95°F 201937°F 197325%0%
Sep 1981°F58°F96°F 195437°F 199125%0%
Sep 2080°F58°F97°F 195437°F 199125%0%
Sep 2180°F58°F95°F 202237°F 198325%0%
Sep 2280°F57°F92°F 195633°F 199525%0%
Sep 2379°F57°F92°F 196035°F 198325%0%
Sep 2479°F56°F91°F 201632°F 198925%0%
Sep 2579°F56°F90°F 198136°F 198925%0%
Sep 2678°F56°F92°F 195334°F 197525%0%
Sep 2778°F55°F91°F 195330°F 194225%0%
Sep 2878°F55°F101°F 195335°F 196725%0%
Sep 2977°F54°F98°F 195333°F 196725%0%
Sep 3077°F54°F91°F 197931°F 198426%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Cedar 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 6:46 AM, sunset 7:44 PM
September 30
sunrise 7:10 AM, sunset 7:00 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00238082 (Stockton Dam), public domain. Records: NOAA GHCN-Daily, station USW00013995, 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.