Cedar Rapids weather by month
Measured at Cedar Rapids/E Iowa Arpt
Averages and records for each calendar month at Cedar Rapids/E Iowa Arpt, United States, from 1953 to 2026. The warmest month is July, averaging 28.9°C; the coolest is January at −2.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −2.7°C | −12.0°C | 18.3°C31 January 1989 | −34.3°C31 January 2019 | 73 / 73 |
| February | 0.3°C | −9.4°C | 24.4°C22 February 2017 | −32.2°C2 February 1996 | 73 / 73 |
| March | 7.5°C | −3.0°C | 31.7°C21 March 2026 | −28.9°C1 March 1962 | 73 / 73 |
| April | 15.7°C | 3.5°C | 35.0°C22 April 1980 | −17.2°C6 April 1982 | 73 / 73 |
| May | 22.0°C | 9.8°C | 36.1°C27 May 2018 | −3.9°C3 May 2005 | 73 / 73 |
| June | 27.1°C | 15.3°C | 37.8°C25 June 1954 | 3.9°C1 June 1993 | 74 / 74 |
| July | 28.9°C | 17.5°C | 40.0°C31 July 1988 | 7.8°C4 July 1967 | 74 / 74 |
| August | 27.7°C | 16.1°C | 38.9°C15 August 1988 | 4.4°C28 August 1986 | 74 / 74 |
| September | 23.9°C | 11.3°C | 37.2°C9 September 2013 | −2.8°C29 September 1984 | 72 / 74 |
| October | 17.1°C | 4.9°C | 34.4°C3 October 1997 | −9.4°C27 October 1997 | 73 / 73 |
| November | 8.1°C | −2.1°C | 25.6°C8 November 1999 | −23.9°C26 November 1977 | 73 / 73 |
| December | 0.4°C | −8.6°C | 22.8°C15 December 2021 | −30.0°C23 December 1989 | 73 / 73 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 72 to 74 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.