Montauk Arpt climate by month
Averages and records for each calendar month at Montauk Arpt, United States, from 1998 to 2026. The warmest month is July, averaging 27.0°C; the coolest is January at 4.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 4.5°C | −2.0°C | 17.8°C12 January 2020 | −15.0°C10 January 2004 | 26 / 28 |
| February | 4.8°C | −2.1°C | 17.8°C16 February 2023 | −18.8°C14 February 2016 | 25 / 27 |
| March | 8.1°C | 1.0°C | 21.7°C10 March 2016 | −13.3°C4 March 2003 | 26 / 28 |
| April | 13.0°C | 5.4°C | 31.7°C17 April 2002 | −3.8°C2 April 2019 | 27 / 28 |
| May | 18.2°C | 10.1°C | 31.1°C31 May 2022 | −0.5°C1 May 2008 | 27 / 28 |
| June | 23.5°C | 15.6°C | 36.7°C24 June 2025 | 6.1°C1 June 2001 | 28 / 28 |
| July | 27.0°C | 19.5°C | 36.7°C22 July 2011 | 10.6°C11 July 2009 | 28 / 28 |
| August | 26.5°C | 19.4°C | 36.7°C9 August 2001 | 12.2°C26 August 2001 | 27 / 28 |
| September | 23.2°C | 16.3°C | 32.8°C1 September 2010 | 3.9°C30 September 2000 | 27 / 28 |
| October | 17.9°C | 11.3°C | 28.9°C2 October 2019 | −1.1°C25 October 2003 | 25 / 27 |
| November | 12.3°C | 5.6°C | 24.4°C7 November 2022 | −7.1°C22 November 2018 | 26 / 28 |
| December | 7.3°C | 1.0°C | 21.1°C7 December 1998 | −11.1°C20 December 2004 | 26 / 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 25 to 28 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.