Lafayette/Purdue Univ Arpt weather by month
Averages and records for each calendar month at Lafayette/Purdue Univ Arpt, United States, from 1944 to 2026. The warmest month is July, averaging 29.7°C; the coolest is January at 0.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 0.8°C | −8.0°C | 20.6°C7 January 2008 | −30.6°C20 January 1985 | 62 / 63 |
| February | 3.3°C | −6.1°C | 22.8°C11 February 1999 | −28.9°C10 February 1982 | 62 / 62 |
| March | 10.3°C | −0.4°C | 30.0°C21 March 2012 | −21.0°C6 March 2015 | 63 / 63 |
| April | 17.1°C | 4.9°C | 31.7°C22 April 1980 | −13.9°C7 April 1982 | 62 / 63 |
| May | 23.1°C | 10.4°C | 35.6°C28 May 2018 | −3.9°C10 May 1966 | 63 / 63 |
| June | 28.1°C | 15.7°C | 40.6°C25 June 1988 | 1.7°C5 June 1945 | 63 / 63 |
| July | 29.7°C | 17.8°C | 40.6°C22 July 1983 | 6.1°C6 July 1972 | 61 / 62 |
| August | 28.8°C | 16.8°C | 37.8°C20 August 1983 | 2.8°C29 August 1965 | 60 / 61 |
| September | 25.7°C | 12.8°C | 36.7°C2 September 2011 | −1.7°C23 September 1995 | 58 / 61 |
| October | 18.5°C | 6.3°C | 33.3°C2 October 1983 | −7.2°C24 October 1981 | 61 / 61 |
| November | 10.5°C | 0.9°C | 26.7°C8 November 2020 | −14.9°C12 November 2019 | 62 / 62 |
| December | 3.8°C | −4.3°C | 22.8°C2 December 1982 | −26.7°C23 December 1983 | 61 / 61 |
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 58 to 63 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.