Phoenix/Goodyear Muni climate by month
Averages and records for each calendar month at Phoenix/Goodyear Muni, United States, from 1945 to 1966. The warmest month is July, averaging 39.8°C; the coolest is January at 17.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 17.7°C | 3.6°C | 28.3°C25 January 1951 | −6.1°C5 January 1950 | 14 / 17 |
| February | 20.6°C | 5.0°C | 32.8°C13 February 1957 | −4.4°C21 February 1952 | 14 / 15 |
| March | 24.1°C | 7.8°C | 34.4°C24 March 1956 | −2.2°C3 March 1966 | 12 / 15 |
| April | 29.2°C | 11.8°C | 38.9°C23 April 1946 | 0.0°C4 April 1945 | 15 / 17 |
| May | 33.3°C | 16.2°C | 44.4°C26 May 1951 | 5.6°C2 May 1948 | 14 / 17 |
| June | 38.5°C | 21.3°C | 46.1°C20 June 1960 | 11.1°C2 June 1955 | 14 / 16 |
| July | 39.8°C | 25.5°C | 46.7°C9 July 1958 | 18.3°C1 July 1955 | 15 / 18 |
| August | 38.5°C | 24.3°C | 45.6°C29 August 1948 | 15.0°C31 August 1957 | 15 / 18 |
| September | 37.0°C | 20.3°C | 46.7°C1 September 1950 | 10.6°C23 September 1960 | 15 / 18 |
| October | 30.6°C | 13.9°C | 41.1°C1 October 1955 | 2.2°C30 October 1961 | 15 / 17 |
| November | 23.8°C | 6.7°C | 32.8°C1 November 1947 | −1.7°C21 November 1948 | 15 / 17 |
| December | 19.3°C | 3.5°C | 29.4°C1 December 1949 | −3.9°C25 December 1953 | 15 / 17 |
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 12 to 15 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.