climatesince.com

Champaign County, IL

: September 2026 so far averaged 73°F in Champaign County, IL, the warmest 1 to 29 September in the county average since the data begin in 1951 (county average from NOAA gridded data, 1951 to 2026).

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

High
78.4°F
Warmest since 2025
26th warmest of 76
Low
47°F
Coldest since 2022
36th coldest of 76

No measurable precipitation in the county average of Champaign County, IL for 8 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September low of the county average in Champaign County, IL since 1951: 47°F in 2026; the lowest is 33.3°F, in 1951.
2022: 37.6°F1951: 33.3°F2026: 47°F 2026 47°F 1951 33.3°F since 2022 1951 2026
  • Normal range, 38.7 to 54.7°F
Every year as a table

Every 29 September high of the county average in Champaign County, IL since 1951: 78.4°F in 2026; the highest is 95.8°F, in 1953.

YearHigh, °FLow, °F
202678.447
202590.356.4
202474.662.7
202375.553.4
202263.737.6
202186.857.8
202064.743.4
201983.564.5
201877.243.8
20177446.6
20166452.6
201581.161.9
201483.252.3
201384.354.6
201271.445.6
201169.347
201073.944
200964.949.4
200881.553.2
200781.548.6
20066238.8
200578.442.6
200471.543.3
200360.636.3
200280.752.1
200161.343.1
200071.942.4
199983.251
199883.756
199774.849.7
199667.143.1
199581.649.3
199469.543.3
199365.737.6
199266.236.7
199176.348.6
199074.254.9
19897541.4
198882.455.3
198781.857.3
198689.267.8
198574.543.8
198458.735.8
198382.351.7
198276.449.8
198168.543.5
198076.344.9
197981.656
197869.542.5
197772.444.5
197667.444.9
197570.643.8
197466.747.1
197381.766.1
197277.954.9
19718766.6
197068.739.2
196972.943.6
196873.347.1
196755.436.1
196667.346.4
196576.748.3
196464.938.4
196380.348
196266.736.2
19616737.3
196076.147.4
195979.657.8
195867.439.8
195768.635.7
195680.847
195577.454.2
195482.561.8
195395.852.9
195286.752.6
195160.633.3

The month

August 2026 averaged 73.4°F in Champaign County, IL, the warmest August in the county average since 2021, tied 42nd warmest of 132 (with 1948 and 1901) (county average from NOAA's monthly county data, 1895 to 2026).

The month in words
  • Tuesday 29 September 2026: a high of 78.4°F averaged over Champaign County, IL, the warmest 29 September in the county average since 2025, tied 26th warmest of 76 (with 2005) (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 47°F averaged over Champaign County, IL, the coldest 29 September night in the county average since 2022, tied 36th coldest of 76 (with 2011 and 1956) (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Springfield, IL 81.3 mi, the nearest city with its own station