Columbia Rgnl climate by month
Averages and records for each calendar month at Columbia Rgnl, United States, from 1969 to 2026. The warmest month is July, averaging 31.3°C; the coolest is January at 3.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 3.3°C | −6.5°C | 25.0°C28 January 2013 | −28.3°C10 January 1982 | 57 / 57 |
| February | 6.4°C | −4.2°C | 27.8°C29 February 1972 | −26.1°C5 February 1979 | 57 / 57 |
| March | 13.1°C | 1.5°C | 33.9°C26 March 2026 | −20.6°C4 March 1978 | 57 / 57 |
| April | 19.2°C | 7.0°C | 32.2°C12 April 1972 | −7.2°C3 April 1975 | 57 / 57 |
| May | 23.8°C | 12.4°C | 34.4°C27 May 2018 | −1.7°C3 May 1976 | 57 / 57 |
| June | 28.8°C | 17.4°C | 41.7°C28 June 2012 | 4.4°C5 June 1993 | 57 / 57 |
| July | 31.3°C | 19.7°C | 43.9°C30 July 1980 | 8.9°C13 July 1975 | 57 / 57 |
| August | 30.6°C | 18.6°C | 43.3°C29 August 1984 | 5.6°C28 August 1986 | 57 / 57 |
| September | 26.5°C | 14.2°C | 38.3°C14 September 1971 | 0.0°C30 September 1984 | 56 / 57 |
| October | 19.8°C | 7.7°C | 34.4°C2 October 2006 | −5.6°C19 October 1972 | 56 / 56 |
| November | 12.3°C | 1.6°C | 28.3°C4 November 1978 | −17.8°C8 November 1991 | 57 / 57 |
| December | 5.8°C | −3.7°C | 24.4°C8 December 1991 | −28.9°C22 December 1989 | 57 / 57 |
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 56 to 57 years each.
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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.