Osan Arpt climate by month
Averages and records for each calendar month at Osan Arpt, South Korea, from 1953 to 1967. The warmest month is August, averaging 30.4°C; the coolest is January at 0.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 0.4°C | −9.6°C | 12.2°C4 January 1960 | −26.7°C23 January 1963 | 14 / 15 |
| February | 3.6°C | −6.2°C | 15.6°C26 February 1955 | −23.9°C9 February 1956 | 15 / 15 |
| March | 9.5°C | −0.7°C | 21.7°C24 March 1958 | −9.4°C3 March 1958 | 15 / 15 |
| April | 16.7°C | 5.5°C | 27.2°C12 April 1955 | −4.4°C1 April 1957 | 15 / 15 |
| May | 23.0°C | 11.3°C | 31.1°C31 May 1962 | 3.9°C11 May 1965 | 15 / 15 |
| June | 26.3°C | 16.5°C | 35.6°C24 June 1958 | 9.4°C4 June 1955 | 15 / 15 |
| July | 29.2°C | 21.9°C | 36.1°C31 July 1961 | 13.9°C3 July 1966 | 15 / 15 |
| August | 30.4°C | 22.2°C | 36.7°C17 August 1953 | 15.0°C29 August 1953 | 15 / 15 |
| September | 25.5°C | 15.1°C | 32.8°C6 September 1955 | 3.3°C27 September 1957 | 15 / 15 |
| October | 19.5°C | 7.0°C | 28.3°C1 October 1955 | −2.8°C20 October 1956 | 15 / 15 |
| November | 11.5°C | 0.8°C | 21.1°C2 November 1956 | −12.8°C22 November 1966 | 15 / 15 |
| December | 3.8°C | −5.4°C | 18.3°C1 December 1953 | −19.4°C30 December 1967 | 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 14 to 15 years each.
See what Osan Arpt is doing right now
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.