McComb/Lewis Fld weather by month
Averages and records for each calendar month at McComb/Lewis Fld, United States, from 1948 to 2026. The warmest month is July, averaging 33.0°C; the coolest is January at 15.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 15.3°C | 3.2°C | 30.0°C27 January 1972 | −16.7°C21 January 1985 | 78 / 78 |
| February | 17.6°C | 5.0°C | 29.4°C22 February 2018 | −13.3°C2 February 1951 | 78 / 78 |
| March | 21.6°C | 8.4°C | 31.1°C18 March 1982 | −10.0°C3 March 1980 | 78 / 78 |
| April | 25.3°C | 12.2°C | 35.0°C21 April 1987 | −2.2°C4 April 1987 | 78 / 78 |
| May | 29.0°C | 16.5°C | 37.8°C31 May 1951 | 1.7°C4 May 2013 | 78 / 78 |
| June | 32.2°C | 20.1°C | 39.4°C28 June 2009 | 7.8°C1 June 1984 | 78 / 78 |
| July | 33.0°C | 21.4°C | 40.6°C2 July 2009 | 13.3°C15 July 1967 | 78 / 78 |
| August | 33.0°C | 21.2°C | 41.1°C30 August 2000 | 12.8°C29 August 1992 | 78 / 78 |
| September | 30.7°C | 18.8°C | 40.6°C1 September 2000 | 3.9°C29 September 1967 | 77 / 78 |
| October | 26.2°C | 12.6°C | 37.2°C3 October 2019 | −2.8°C20 October 1989 | 78 / 78 |
| November | 20.6°C | 7.4°C | 30.6°C7 November 2005 | −8.9°C30 November 1976 | 78 / 78 |
| December | 16.7°C | 4.6°C | 28.9°C31 December 2021 | −15.6°C23 December 1989 | 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 77 to 78 years each.
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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.