Ft Riley/Marshall Fld weather by month
Averages and records for each calendar month at Ft Riley/Marshall Fld, United States, from 1949 to 2026. The warmest month is July, averaging 32.2°C; the coolest is January at 2.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 2.8°C | −8.8°C | 21.1°C23 January 1967 | −28.9°C4 January 1959 | 18 / 18 |
| February | 6.5°C | −5.6°C | 25.2°C9 February 2026 | −23.9°C3 February 1956 | 17 / 19 |
| March | 12.2°C | −1.0°C | 34.6°C25 March 2026 | −20.6°C8 March 1967 | 18 / 18 |
| April | 19.3°C | 6.1°C | 34.4°C23 April 1965 | −8.9°C2 April 1970 | 18 / 18 |
| May | 24.8°C | 12.5°C | 37.8°C24 May 1967 | −2.2°C2 May 1961 | 17 / 19 |
| June | 29.0°C | 17.6°C | 40.0°C25 June 1966 | 4.4°C1 June 1964 | 18 / 18 |
| July | 32.2°C | 20.4°C | 44.4°C12 July 1966 | 6.7°C3 July 1968 | 18 / 19 |
| August | 31.8°C | 19.4°C | 41.1°C16 August 1956 | 7.2°C12 August 1964 | 19 / 19 |
| September | 26.6°C | 13.8°C | 40.6°C12 September 1956 | −0.6°C29 September 1949 | 18 / 19 |
| October | 21.3°C | 7.7°C | 37.8°C5 October 1963 | −6.7°C31 October 1949 | 18 / 18 |
| November | 12.8°C | 0.0°C | 26.7°C2 November 1964 | −15.0°C30 November 1964 | 17 / 17 |
| December | 6.0°C | −5.5°C | 22.2°C17 December 1962 | −23.9°C13 December 1961 | 17 / 18 |
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 17 to 19 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.