Dunkirk/Chautauqua Cnty climate by month
Averages and records for each calendar month at Dunkirk/Chautauqua Cnty, United States, from 1945 to 2026. The warmest month is July, averaging 26.8°C; the coolest is January at 1.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 1.5°C | −6.1°C | 22.2°C25 January 1950 | −26.7°C27 January 2003 | 37 / 38 |
| February | 2.3°C | −6.3°C | 23.3°C24 February 2017 | −33.2°C16 February 2015 | 36 / 36 |
| March | 6.8°C | −2.6°C | 27.2°C31 March 1998 | −23.9°C12 March 1948 | 37 / 37 |
| April | 13.2°C | 2.4°C | 30.0°C19 April 2008 | −7.8°C10 April 1997 | 37 / 37 |
| May | 19.4°C | 8.3°C | 31.7°C30 May 2018 | −2.8°C5 May 2005 | 37 / 37 |
| June | 24.6°C | 14.1°C | 34.4°C24 June 1949 | 3.9°C4 June 1947 | 34 / 37 |
| July | 26.8°C | 16.8°C | 37.2°C3 July 1949 | 7.2°C27 July 2001 | 38 / 38 |
| August | 26.1°C | 16.1°C | 35.6°C4 August 2012 | 6.1°C20 August 1998 | 38 / 38 |
| September | 22.7°C | 12.5°C | 35.6°C3 September 1953 | 0.0°C29 September 2000 | 36 / 38 |
| October | 16.6°C | 7.2°C | 30.6°C3 October 1951 | −5.6°C31 October 2002 | 37 / 37 |
| November | 9.8°C | 2.0°C | 29.4°C5 November 2024 | −16.1°C6 November 1951 | 37 / 38 |
| December | 4.1°C | −2.7°C | 21.7°C7 December 1998 | −24.4°C24 December 1945 | 38 / 38 |
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 34 to 38 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.