Roanoke Rgnl climate by month
Averages and records for each calendar month at Roanoke Rgnl, United States, from 1948 to 2026. The warmest month is July, averaging 30.8°C; the coolest is January at 7.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 7.5°C | −2.5°C | 26.1°C30 January 2002 | −23.9°C21 January 1985 | 79 / 79 |
| February | 9.6°C | −1.3°C | 28.9°C22 February 2018 | −18.3°C5 February 1996 | 79 / 79 |
| March | 14.4°C | 2.5°C | 30.6°C31 March 1986 | −12.8°C15 March 1993 | 79 / 79 |
| April | 20.3°C | 7.4°C | 35.0°C27 April 1957 | −6.7°C7 April 1982 | 79 / 79 |
| May | 24.6°C | 12.2°C | 35.6°C19 May 1962 | −0.6°C11 May 1966 | 79 / 79 |
| June | 28.8°C | 16.6°C | 40.0°C29 June 2012 | 3.9°C8 June 1977 | 79 / 79 |
| July | 30.8°C | 19.0°C | 40.0°C14 July 1954 | 8.3°C2 July 1988 | 79 / 79 |
| August | 29.8°C | 18.3°C | 40.6°C21 August 1983 | 5.6°C29 August 1986 | 79 / 79 |
| September | 26.1°C | 14.4°C | 38.3°C1 September 1953 | 1.1°C24 September 1983 | 78 / 79 |
| October | 20.6°C | 8.1°C | 36.7°C3 October 2019 | −5.6°C20 October 1972 | 78 / 78 |
| November | 14.4°C | 2.9°C | 28.3°C1 November 1950 | −12.8°C25 November 1950 | 78 / 78 |
| December | 9.1°C | −0.9°C | 26.7°C6 December 1998 | −20.0°C25 December 1983 | 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 78 to 79 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.