Wiscasset Arpt climate by month
Averages and records for each calendar month at Wiscasset Arpt, United States, from 1996 to 2026. The warmest month is July, averaging 26.2°C; the coolest is January at 0.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 0.0°C | −10.6°C | 18.9°C11 January 2014 | −28.9°C22 January 2005 | 30 / 30 |
| February | 1.7°C | −9.7°C | 18.3°C23 February 2022 | −29.3°C24 February 2015 | 30 / 30 |
| March | 5.9°C | −4.6°C | 29.4°C31 March 1998 | −23.8°C1 March 2015 | 30 / 30 |
| April | 12.2°C | 0.6°C | 28.3°C28 April 2009 | −9.3°C4 April 2016 | 30 / 30 |
| May | 18.1°C | 6.1°C | 34.4°C25 May 2007 | −2.8°C1 May 2000 | 30 / 30 |
| June | 22.9°C | 11.3°C | 37.2°C24 June 2025 | 0.6°C8 June 2002 | 30 / 30 |
| July | 26.2°C | 14.7°C | 36.7°C22 July 2011 | 7.2°C14 July 1999 | 31 / 31 |
| August | 25.8°C | 14.0°C | 35.0°C7 August 2001 | 4.4°C31 August 2002 | 31 / 31 |
| September | 21.8°C | 9.9°C | 35.0°C9 September 2002 | −2.2°C29 September 2000 | 30 / 31 |
| October | 15.1°C | 4.0°C | 28.9°C9 October 2011 | −6.7°C23 October 1997 | 30 / 30 |
| November | 8.8°C | −1.3°C | 25.6°C1 November 2024 | −15.5°C23 November 2018 | 30 / 30 |
| December | 3.3°C | −6.6°C | 18.9°C7 December 1998 | −27.1°C30 December 2017 | 30 / 30 |
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 30 to 31 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.