Harvey Muni climate by month
Averages and records for each calendar month at Harvey Muni, United States, from 1979 to 2026. The warmest month is July, averaging 28.0°C; the coolest is January at −6.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −6.3°C | −17.1°C | 14.4°C5 January 2012 | −40.0°C14 January 2009 | 38 / 42 |
| February | −5.1°C | −16.1°C | 16.1°C27 February 1988 | −40.6°C1 February 1996 | 40 / 44 |
| March | 2.7°C | −8.5°C | 23.3°C25 March 2007 | −33.9°C2 March 2003 | 44 / 44 |
| April | 12.1°C | −1.4°C | 32.8°C18 April 1987 | −21.7°C4 April 2002 | 42 / 45 |
| May | 20.3°C | 5.9°C | 36.1°C22 May 1980 | −8.9°C2 May 2005 | 39 / 45 |
| June | 24.8°C | 11.6°C | 39.4°C27 June 1988 | 1.1°C7 June 1992 | 38 / 46 |
| July | 28.0°C | 14.0°C | 41.7°C27 July 1988 | 4.4°C12 July 1993 | 40 / 47 |
| August | 27.1°C | 12.1°C | 40.6°C8 August 1983 | 0.0°C27 August 1982 | 40 / 45 |
| September | 22.1°C | 7.1°C | 39.4°C3 September 2015 | −5.0°C23 September 1989 | 42 / 46 |
| October | 13.4°C | −0.1°C | 32.2°C1 October 1992 | −18.3°C30 October 1991 | 43 / 46 |
| November | 3.2°C | −8.0°C | 25.6°C7 November 1999 | −30.0°C29 November 1985 | 41 / 45 |
| December | −4.2°C | −14.8°C | 15.6°C9 December 2015 | −36.1°C21 December 1989 | 39 / 44 |
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 38 to 44 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.