Sunriver Arpt climate by month
Averages and records for each calendar month at Sunriver Arpt, United States, from 1998 to 2024. The warmest month is July, averaging 29.2°C; the coolest is December at 3.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 3.8°C | −6.8°C | 18.9°C30 January 2024 | −26.1°C22 January 2008 | 22 / 24 |
| February | 5.8°C | −6.1°C | 17.2°C4 February 2005 | −26.7°C26 February 2011 | 22 / 22 |
| March | 9.5°C | −4.5°C | 25.6°C28 March 2015 | −19.4°C1 March 2019 | 23 / 24 |
| April | 13.6°C | −3.1°C | 30.6°C28 April 2023 | −12.2°C1 April 2008 | 22 / 23 |
| May | 17.9°C | 0.3°C | 33.9°C24 May 2001 | −11.7°C2 May 2003 | 25 / 25 |
| June | 22.8°C | 3.3°C | 38.3°C29 June 2021 | −8.9°C11 June 2005 | 22 / 27 |
| July | 29.2°C | 5.5°C | 38.9°C23 July 2003 | −7.2°C2 July 2005 | 23 / 25 |
| August | 28.6°C | 4.7°C | 38.3°C17 August 2008 | −4.4°C31 August 2008 | 24 / 25 |
| September | 24.2°C | 0.8°C | 38.9°C3 September 2017 | −11.1°C18 September 2005 | 25 / 25 |
| October | 16.5°C | −2.5°C | 31.7°C2 October 2020 | −22.2°C31 October 2002 | 25 / 25 |
| November | 8.1°C | −4.2°C | 22.2°C3 November 2020 | −21.1°C1 November 2002 | 22 / 25 |
| December | 3.1°C | −7.2°C | 17.8°C2 December 2021 | −32.8°C8 December 2013 | 25 / 25 |
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 22 to 25 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.