Tucson Intl Arpt climate by month
Averages and records for each calendar month at Tucson Intl Arpt, United States, from 1946 to 2026. The warmest month is June, averaging 38.0°C; the coolest is January at 18.6°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 18.6°C | 3.9°C | 30.6°C10 January 1953 | −8.9°C4 January 1949 | 79 / 79 |
| February | 20.4°C | 5.2°C | 33.3°C14 February 1957 | −7.8°C3 February 2011 | 79 / 79 |
| March | 23.4°C | 7.6°C | 38.9°C21 March 2026 | −6.7°C4 March 1965 | 79 / 79 |
| April | 27.9°C | 11.0°C | 40.0°C20 April 1989 | 0.0°C5 April 2023 | 78 / 79 |
| May | 32.7°C | 15.3°C | 42.8°C22 May 2005 | 3.3°C5 May 1950 | 79 / 79 |
| June | 38.0°C | 20.7°C | 47.2°C26 June 1990 | 8.3°C2 June 1955 | 80 / 80 |
| July | 37.6°C | 23.7°C | 45.6°C4 July 1989 | 15.0°C2 July 1992 | 80 / 80 |
| August | 36.5°C | 22.9°C | 44.4°C1 August 1993 | 16.1°C29 August 1956 | 80 / 80 |
| September | 34.8°C | 20.3°C | 43.9°C10 September 2023 | 6.7°C30 September 1965 | 79 / 80 |
| October | 29.7°C | 14.2°C | 41.1°C4 October 2024 | −3.3°C30 October 1971 | 79 / 79 |
| November | 23.3°C | 7.9°C | 34.4°C5 November 2020 | −5.0°C30 November 2010 | 79 / 79 |
| December | 18.8°C | 4.2°C | 29.4°C1 December 2021 | −8.9°C24 December 1974 | 78 / 78 |
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 78 to 80 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.