Bangor Intl Arpt climate by month
Averages and records for each calendar month at Bangor Intl Arpt, United States, from 1953 to 2026. The warmest month is July, averaging 26.3°C; the coolest is January at −2.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −2.4°C | −12.7°C | 14.4°C6 January 2007 | −33.9°C22 January 2005 | 73 / 73 |
| February | −0.8°C | −11.8°C | 18.3°C23 February 2022 | −34.4°C2 February 1962 | 74 / 74 |
| March | 4.2°C | −5.8°C | 28.9°C22 March 2012 | −26.7°C2 March 2001 | 73 / 74 |
| April | 11.2°C | 0.4°C | 33.3°C27 April 1990 | −13.9°C4 April 1954 | 74 / 74 |
| May | 18.2°C | 6.2°C | 35.6°C22 May 1992 | −3.9°C2 May 2008 | 74 / 74 |
| June | 23.2°C | 11.4°C | 36.7°C24 June 2025 | 1.1°C4 June 2002 | 74 / 74 |
| July | 26.3°C | 14.7°C | 37.2°C14 July 1995 | 5.0°C7 July 1969 | 74 / 74 |
| August | 25.5°C | 13.8°C | 38.9°C2 August 1975 | 3.9°C31 August 1965 | 74 / 74 |
| September | 20.8°C | 9.3°C | 36.1°C9 September 2002 | −5.0°C29 September 2000 | 73 / 74 |
| October | 14.3°C | 3.7°C | 30.0°C16 October 1968 | −8.2°C29 October 2024 | 73 / 73 |
| November | 7.3°C | −1.5°C | 23.9°C6 November 2024 | −17.2°C24 November 1989 | 72 / 72 |
| December | 0.5°C | −8.8°C | 18.3°C4 December 1982 | −31.0°C31 December 2017 | 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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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.