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Calhoun County, IA

: September 2026 so far brought 7.14 in of precipitation in Calhoun County, IA, the wettest 1 to 29 September in the county average since 1973, 3rd wettest of 76 (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
75.5°F
Warmest since 2025
22nd warmest of 76
Low
56.7°F
Warmest since 1983
5th warmest of 76

No measurable precipitation in the county average of Calhoun County, IA for 2 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September low of the county average in Calhoun County, IA since 1951: 56.7°F in 2026; the lowest is 28.7°F, in 1984 and 1967.
1983: 60°F1967: 28.7°F1984: 28.7°F2026: 56.7°F 2026 56.7°F 28.7°F since 1983 1951 2026
  • Normal range, 33.9 to 52.2°F
Every year as a table

Every 29 September high of the county average in Calhoun County, IA since 1951: 75.5°F in 2026; the highest is 88.5°F, in 2021.

YearHigh, °FLow, °F
202675.556.7
202585.248.1
202487.251.8
20237751.5
20226533.2
202188.555.9
202060.441.6
201969.648.3
20185338.9
201776.147
201661.844.2
201582.153.5
201479.955.1
201366.743.6
20127539.3
201182.949.8
201073.748.2
20096240.4
200870.552.1
200773.741.1
200657.839
20055934
200468.136.6
200357.832.5
200269.748.2
200174.441.1
20008143.9
199966.735.3
199883.154.4
199775.449.2
199667.543.5
199580.251.2
199471.641.1
19936232.8
199257.931.7
199169.435.7
199069.748
198978.845.6
198865.156.5
198774.152
198678.956.1
198549.136.6
198450.528.7
198382.660
198276.857.1
198174.941
198078.549.4
197973.245.6
197872.446.4
197770.649.1
197664.739.6
197568.140.3
197461.430
197364.456.9
197264.735.1
197178.248.5
19707842
19697649.7
196865.146.9
196763.228.7
196665.845.3
196574.149.5
196471.436.2
196368.740.3
196268.836.4
196160.940.6
196067.546.2
195954.935.4
195873.347.9
19577439.3
195672.339.9
195572.454.2
195468.254.3
195386.157.1
195284.346.9
195158.138

The month

September 2026 so far averaged 67.6°F in Calhoun County, IA, the warmest 1 to 29 September in the county average since 2019, 6th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).

The month in words
  • August 2026 averaged 71.4°F in Calhoun County, IA, the warmest August in the county average since 2023, tied 55th warmest of 132 (with 2022 and 1945) (county average from NOAA's monthly county data, 1895 to 2026).
  • Tuesday 29 September 2026: a high of 75.5°F averaged over Calhoun County, IA, the warmest 29 September in the county average since 2025, 22nd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 56.7°F averaged over Calhoun County, IA, the warmest 29 September night in the county average since 1983, 5th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Spencer, IA 61.2 mi, the nearest city with its own station