Andover/Aeroflex Arpt climate by month
Averages and records for each calendar month at Andover/Aeroflex Arpt, United States, from 1998 to 2026. The warmest month is July, averaging 29.1°C; the coolest is January at 2.6°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 2.6°C | −6.9°C | 20.6°C6 January 2007 | −26.1°C24 January 2005 | 25 / 28 |
| February | 4.3°C | −6.3°C | 25.0°C21 February 2018 | −25.5°C24 February 2015 | 24 / 28 |
| March | 9.6°C | −1.6°C | 26.1°C26 March 2021 | −22.2°C7 March 2003 | 25 / 28 |
| April | 16.4°C | 4.1°C | 33.3°C17 April 2002 | −6.7°C7 April 2002 | 25 / 26 |
| May | 21.9°C | 9.7°C | 35.0°C31 May 2022 | −1.0°C9 May 2020 | 26 / 28 |
| June | 26.4°C | 14.4°C | 36.7°C23 June 2025 | 3.3°C1 June 2001 | 26 / 28 |
| July | 29.1°C | 17.4°C | 38.3°C22 July 2011 | 7.8°C3 July 2001 | 26 / 28 |
| August | 27.9°C | 16.3°C | 37.2°C9 August 2001 | 7.2°C21 August 2000 | 27 / 29 |
| September | 24.1°C | 12.1°C | 33.9°C4 September 2008 | 1.1°C24 September 1998 | 26 / 29 |
| October | 17.6°C | 6.2°C | 33.3°C2 October 2019 | −4.9°C19 October 2015 | 27 / 28 |
| November | 11.5°C | 0.7°C | 26.1°C8 November 2020 | −13.2°C23 November 2018 | 24 / 28 |
| December | 5.1°C | −3.8°C | 22.8°C7 December 1998 | −18.9°C14 December 2005 | 24 / 28 |
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 24 to 27 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.