Grafton/Hutson Fld climate by month
Averages and records for each calendar month at Grafton/Hutson Fld, United States, from 1893 to 2011. The warmest month is July, averaging 28.1°C; the coolest is January at −9.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −9.8°C | −21.0°C | 11.1°C20 January 1908 | −42.8°C13 January 1916 | 105 / 114 |
| February | −6.6°C | −18.2°C | 18.3°C25 February 1958 | −43.9°C11 February 1914 | 97 / 113 |
| March | 0.7°C | −10.3°C | 26.7°C27 March 1946 | −37.2°C2 March 1972 | 106 / 112 |
| April | 11.8°C | −1.1°C | 37.8°C21 April 1980 | −23.9°C3 April 1920 | 106 / 113 |
| May | 20.5°C | 5.4°C | 41.7°C30 May 1934 | −12.2°C3 May 1926 | 106 / 108 |
| June | 25.0°C | 11.1°C | 40.0°C19 June 1933 | −5.0°C7 June 1915 | 103 / 109 |
| July | 28.1°C | 13.5°C | 42.2°C11 July 1936 | 1.1°C14 July 1908 | 106 / 108 |
| August | 27.3°C | 12.2°C | 40.6°C5 August 1964 | −2.8°C26 August 1915 | 104 / 108 |
| September | 21.5°C | 7.0°C | 40.0°C5 September 1978 | −7.8°C10 September 1917 | 99 / 104 |
| October | 13.7°C | 0.8°C | 32.8°C1 October 1914 | −22.8°C26 October 1919 | 103 / 108 |
| November | 1.7°C | −8.1°C | 25.6°C5 November 1975 | −37.8°C30 November 1905 | 102 / 107 |
| December | −6.6°C | −16.8°C | 17.2°C6 December 1939 | −38.9°C29 December 1917 | 102 / 107 |
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 97 to 106 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.