Lackland AFB/Kelly Fld weather by month
Averages and records for each calendar month at Lackland AFB/Kelly Fld, United States, from 1949 to 2026. The warmest month is August, averaging 36.0°C; the coolest is January at 17.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 17.1°C | 5.1°C | 32.8°C2 January 2026 | −15.6°C31 January 1949 | 30 / 30 |
| February | 19.2°C | 7.2°C | 36.7°C26 February 2026 | −12.8°C2 February 1951 | 30 / 30 |
| March | 23.3°C | 11.0°C | 37.8°C26 March 1950 | −3.8°C12 March 2022 | 30 / 30 |
| April | 27.2°C | 15.8°C | 38.3°C19 April 1951 | 0.6°C16 April 1961 | 30 / 30 |
| May | 30.6°C | 19.7°C | 40.0°C25 May 2024 | 7.8°C8 May 1960 | 30 / 30 |
| June | 33.9°C | 22.9°C | 41.1°C4 June 2024 | 12.8°C3 June 1970 | 31 / 31 |
| July | 35.6°C | 24.0°C | 42.2°C26 July 1954 | 17.8°C31 July 1965 | 30 / 31 |
| August | 36.0°C | 23.9°C | 42.8°C21 August 2024 | 15.6°C24 August 1961 | 31 / 31 |
| September | 32.6°C | 21.4°C | 40.6°C8 September 2023 | 8.9°C30 September 2020 | 29 / 31 |
| October | 28.0°C | 15.9°C | 36.7°C13 October 2024 | 0.6°C31 October 2019 | 30 / 30 |
| November | 22.1°C | 10.1°C | 33.9°C13 November 1951 | −5.0°C18 November 1959 | 30 / 30 |
| December | 18.8°C | 6.7°C | 32.8°C30 December 2024 | −8.8°C23 December 2022 | 30 / 30 |
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 29 to 31 years each.
See what Lackland AFB/Kelly Fld is doing right now
Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
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.