Spartanburg/Downtown Arpt climate by month
Averages and records for each calendar month at Spartanburg/Downtown Arpt, United States, from 1948 to 2026. The warmest month is July, averaging 31.9°C; the coolest is January at 11.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 11.3°C | 0.8°C | 26.7°C11 January 1949 | −12.8°C17 January 1959 | 17 / 17 |
| February | 13.6°C | 2.4°C | 26.0°C4 February 2025 | −16.1°C18 February 1958 | 17 / 17 |
| March | 16.7°C | 4.8°C | 30.0°C22 March 2026 | −10.6°C5 March 1960 | 17 / 17 |
| April | 22.5°C | 10.0°C | 32.2°C24 April 1960 | −2.2°C7 April 1950 | 17 / 17 |
| May | 26.8°C | 14.9°C | 36.1°C25 May 1953 | 4.4°C13 May 1960 | 17 / 17 |
| June | 30.5°C | 18.8°C | 40.0°C27 June 1954 | 10.0°C15 June 1961 | 17 / 17 |
| July | 31.9°C | 20.7°C | 39.4°C29 July 1952 | 14.4°C7 July 1951 | 17 / 17 |
| August | 31.1°C | 20.0°C | 38.3°C5 August 1954 | 13.3°C6 August 1948 | 17 / 17 |
| September | 27.4°C | 16.6°C | 37.8°C6 September 1954 | 6.1°C30 September 1949 | 16 / 17 |
| October | 22.4°C | 10.7°C | 35.0°C5 October 1954 | −1.7°C21 October 1952 | 15 / 16 |
| November | 16.7°C | 4.6°C | 28.3°C1 November 1950 | −11.7°C25 November 1950 | 15 / 15 |
| December | 11.5°C | 1.1°C | 25.6°C25 December 1955 | −12.8°C12 December 1957 | 15 / 15 |
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 15 to 17 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.