Houlton Intl climate by month
Averages and records for each calendar month at Houlton Intl, United States, from 1948 to 2026. The warmest month is July, averaging 25.7°C; the coolest is January at −4.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −4.8°C | −16.4°C | 14.4°C14 January 2005 | −40.6°C4 January 1981 | 76 / 76 |
| February | −3.1°C | −15.9°C | 16.7°C20 February 1994 | −37.8°C18 February 1967 | 76 / 76 |
| March | 2.2°C | −9.3°C | 26.1°C21 March 2012 | −35.0°C2 March 2001 | 76 / 76 |
| April | 9.5°C | −2.2°C | 30.0°C27 April 1990 | −24.9°C6 April 2015 | 76 / 76 |
| May | 17.5°C | 3.8°C | 35.6°C29 May 1978 | −7.8°C2 May 1972 | 75 / 75 |
| June | 22.6°C | 9.1°C | 36.1°C13 June 1969 | −3.2°C2 June 2020 | 76 / 76 |
| July | 25.7°C | 12.4°C | 36.1°C23 July 1952 | 0.0°C7 July 1969 | 76 / 76 |
| August | 24.5°C | 11.2°C | 37.2°C2 August 1975 | −1.1°C25 August 1978 | 76 / 76 |
| September | 19.5°C | 6.3°C | 33.9°C1 September 2010 | −6.7°C29 September 1980 | 75 / 76 |
| October | 12.6°C | 1.2°C | 28.9°C6 October 2025 | −12.2°C21 October 1972 | 75 / 75 |
| November | 5.0°C | −4.0°C | 22.8°C10 November 2020 | −25.6°C24 November 1989 | 75 / 75 |
| December | −2.0°C | −12.1°C | 15.6°C1 December 2020 | −36.7°C30 December 1989 | 76 / 76 |
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 75 to 76 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.