Marathon Arpt climate by month
Averages and records for each calendar month at Marathon Arpt, United States, from 1998 to 2026. The warmest month is August, averaging 33.1°C; the coolest is January at 24.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 24.3°C | 18.1°C | 31.1°C3 January 2017 | 3.9°C11 January 2010 | 28 / 28 |
| February | 25.8°C | 19.6°C | 31.7°C24 February 2019 | 6.1°C5 February 2009 | 28 / 28 |
| March | 27.4°C | 21.0°C | 32.2°C16 March 2019 | 9.4°C5 March 2010 | 28 / 28 |
| April | 29.2°C | 23.1°C | 34.4°C26 April 2015 | 13.3°C1 April 2003 | 28 / 28 |
| May | 30.8°C | 24.9°C | 35.6°C14 May 2019 | 17.8°C8 May 2016 | 28 / 29 |
| June | 32.2°C | 26.3°C | 36.7°C8 June 2019 | 18.3°C7 June 2008 | 28 / 29 |
| July | 32.9°C | 26.8°C | 37.2°C13 July 2023 | 21.1°C21 July 2007 | 29 / 29 |
| August | 33.1°C | 26.8°C | 36.1°C2 August 2002 | 21.1°C18 August 2007 | 29 / 29 |
| September | 32.2°C | 26.1°C | 36.1°C16 September 2023 | 21.7°C29 September 2001 | 28 / 29 |
| October | 30.1°C | 24.7°C | 33.9°C16 October 2009 | 14.4°C29 October 2008 | 28 / 28 |
| November | 27.3°C | 21.9°C | 32.2°C1 November 2002 | 11.7°C22 November 2006 | 28 / 28 |
| December | 25.6°C | 20.1°C | 31.1°C1 December 2016 | 6.7°C14 December 2010 | 28 / 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 28 to 29 years each.
See what Marathon Arpt is doing right now
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.