Jerome Cnty Arpt climate by month
Averages and records for each calendar month at Jerome Cnty Arpt, United States, from 1997 to 2026. The warmest month is July, averaging 32.2°C; the coolest is January at 1.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 1.4°C | −5.8°C | 16.1°C31 January 2024 | −22.7°C6 January 2017 | 28 / 28 |
| February | 4.4°C | −4.4°C | 16.7°C8 February 2015 | −18.9°C13 February 2004 | 27 / 30 |
| March | 10.9°C | −0.8°C | 26.1°C20 March 2026 | −12.8°C2 March 2002 | 30 / 30 |
| April | 15.0°C | 1.7°C | 31.1°C30 April 2021 | −7.7°C21 April 2008 | 30 / 30 |
| May | 20.6°C | 6.1°C | 37.2°C28 May 2003 | −4.3°C7 May 2010 | 30 / 30 |
| June | 26.3°C | 10.5°C | 39.4°C28 June 2015 | 0.0°C3 June 2011 | 29 / 30 |
| July | 32.2°C | 15.0°C | 40.6°C12 July 2002 | 3.9°C5 July 1999 | 29 / 29 |
| August | 30.5°C | 13.5°C | 38.9°C9 August 2018 | 0.0°C31 August 2006 | 30 / 30 |
| September | 25.2°C | 9.0°C | 38.9°C6 September 2022 | −2.2°C27 September 1999 | 28 / 30 |
| October | 16.8°C | 3.4°C | 31.7°C1 October 1997 | −13.2°C30 October 2019 | 29 / 29 |
| November | 8.7°C | −1.9°C | 24.4°C6 November 1999 | −20.5°C29 November 2015 | 29 / 29 |
| December | 2.2°C | −5.5°C | 15.6°C10 December 2025 | −22.1°C9 December 2013 | 29 / 29 |
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 27 to 30 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.