Roswell/Ind Arpt climate by month
Averages and records for each calendar month at Roswell/Ind Arpt, United States, from 1946 to 2026. The warmest month is July, averaging 34.9°C; the coolest is January at 12.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 12.9°C | −3.2°C | 27.8°C17 January 1974 | −28.3°C11 January 1962 | 73 / 73 |
| February | 16.2°C | −0.7°C | 32.8°C18 February 2016 | −23.9°C4 February 2011 | 72 / 72 |
| March | 20.7°C | 3.2°C | 37.8°C26 March 2026 | −12.8°C3 March 2002 | 72 / 72 |
| April | 25.3°C | 7.6°C | 38.9°C25 April 2012 | −5.0°C8 April 1973 | 72 / 72 |
| May | 30.1°C | 13.0°C | 41.7°C24 May 2000 | 1.1°C7 May 1975 | 72 / 72 |
| June | 34.8°C | 18.1°C | 45.6°C27 June 1994 | 8.3°C1 June 1964 | 72 / 72 |
| July | 34.9°C | 20.3°C | 44.4°C19 July 2023 | 13.3°C8 July 1952 | 72 / 73 |
| August | 33.9°C | 19.5°C | 43.9°C26 August 2019 | 12.2°C8 August 1990 | 72 / 72 |
| September | 30.2°C | 15.4°C | 41.1°C7 September 2023 | 4.4°C29 September 1999 | 71 / 72 |
| October | 24.9°C | 8.7°C | 37.2°C2 October 2000 | −10.0°C31 October 1991 | 71 / 71 |
| November | 18.1°C | 1.7°C | 31.7°C17 November 2017 | −15.6°C29 November 1976 | 71 / 71 |
| December | 13.4°C | −2.6°C | 28.9°C4 December 1958 | −22.2°C9 December 1978 | 72 / 73 |
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 71 to 73 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.