Parkersburg/Mid Ohio Valley Rgnl climate by month
Averages and records for each calendar month at Parkersburg/Mid Ohio Valley Rgnl, United States, from 1948 to 2026. The warmest month is July, averaging 29.4°C; the coolest is January at 4.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 4.2°C | −5.0°C | 25.6°C11 January 2020 | −31.1°C19 January 1994 | 75 / 75 |
| February | 6.4°C | −3.8°C | 26.1°C24 February 2017 | −23.3°C3 February 1951 | 74 / 75 |
| March | 12.2°C | 0.7°C | 30.0°C27 March 1950 | −20.6°C3 March 1980 | 74 / 75 |
| April | 18.7°C | 5.9°C | 34.4°C18 April 1976 | −8.3°C9 April 1972 | 74 / 75 |
| May | 23.5°C | 10.9°C | 34.4°C4 May 1949 | −4.4°C10 May 1966 | 74 / 74 |
| June | 27.7°C | 15.5°C | 37.8°C25 June 1988 | 2.2°C2 June 1966 | 74 / 75 |
| July | 29.4°C | 18.1°C | 39.4°C7 July 2012 | 6.7°C1 July 1988 | 74 / 75 |
| August | 28.8°C | 17.3°C | 38.3°C17 August 1988 | 4.4°C29 August 1986 | 76 / 76 |
| September | 25.4°C | 13.4°C | 38.9°C3 September 1953 | 0.0°C21 September 1956 | 75 / 76 |
| October | 19.2°C | 7.0°C | 35.6°C3 October 2019 | −6.1°C21 October 1952 | 74 / 74 |
| November | 12.4°C | 1.8°C | 28.9°C3 November 1961 | −17.2°C30 November 1958 | 75 / 75 |
| December | 6.6°C | −2.4°C | 26.1°C10 December 1971 | −26.7°C23 December 1989 | 75 / 75 |
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 74 to 76 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.