Oceana climate by month
Averages and records for each calendar month at Oceana, United States, from 1945 to 2026. The warmest month is July, averaging 30.5°C; the coolest is January at 9.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 9.5°C | 0.1°C | 27.2°C30 January 2002 | −19.4°C21 January 1985 | 70 / 76 |
| February | 11.0°C | 1.1°C | 28.3°C23 February 2023 | −13.9°C17 February 1958 | 71 / 75 |
| March | 14.9°C | 4.6°C | 32.8°C16 March 2016 | −8.3°C4 March 1947 | 72 / 75 |
| April | 20.1°C | 9.2°C | 35.0°C26 April 1960 | −2.2°C2 April 1964 | 73 / 75 |
| May | 24.0°C | 14.1°C | 36.1°C20 May 1996 | 1.7°C9 May 1956 | 73 / 75 |
| June | 28.3°C | 18.9°C | 40.0°C30 June 1945 | 3.3°C1 June 2021 | 73 / 76 |
| July | 30.5°C | 21.6°C | 39.4°C3 July 1954 | 12.2°C13 July 1978 | 73 / 76 |
| August | 29.7°C | 21.1°C | 40.0°C1 August 1980 | 10.0°C30 August 1982 | 71 / 75 |
| September | 26.7°C | 18.3°C | 36.1°C4 September 1985 | 8.3°C29 September 1947 | 70 / 74 |
| October | 21.6°C | 12.0°C | 35.0°C6 October 1954 | −1.7°C30 October 1965 | 69 / 74 |
| November | 16.5°C | 6.4°C | 29.4°C11 November 2020 | −5.6°C27 November 1977 | 70 / 74 |
| December | 12.0°C | 2.2°C | 28.3°C4 December 1978 | −13.3°C25 December 1983 | 72 / 77 |
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 69 to 73 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.