Rome/Griffiss Intl climate by month
Averages and records for each calendar month at Rome/Griffiss Intl, United States, from 2007 to 2026. The warmest month is July, averaging 27.8°C; the coolest is January at −0.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −0.9°C | −10.0°C | 19.4°C8 January 2008 | −29.9°C1 January 2018 | 19 / 19 |
| February | 0.6°C | −9.6°C | 22.2°C21 February 2018 | −33.2°C14 February 2016 | 19 / 19 |
| March | 6.2°C | −4.6°C | 26.7°C21 March 2012 | −24.3°C6 March 2014 | 19 / 19 |
| April | 13.8°C | 1.3°C | 32.8°C27 April 2009 | −14.9°C5 April 2016 | 19 / 19 |
| May | 20.9°C | 7.6°C | 33.3°C26 May 2020 | −4.3°C13 May 2020 | 19 / 20 |
| June | 25.0°C | 12.6°C | 34.4°C8 June 2007 | 0.0°C1 June 2009 | 19 / 20 |
| July | 27.8°C | 15.6°C | 37.2°C21 July 2011 | 6.1°C2 July 2007 | 20 / 20 |
| August | 26.6°C | 14.8°C | 34.4°C2 August 2007 | 6.1°C20 August 2008 | 20 / 20 |
| September | 23.0°C | 10.8°C | 33.9°C7 September 2007 | −1.0°C19 September 2020 | 19 / 20 |
| October | 16.0°C | 5.2°C | 30.6°C4 October 2023 | −6.0°C29 October 2013 | 19 / 19 |
| November | 8.4°C | −1.1°C | 25.6°C10 November 2020 | −19.9°C23 November 2018 | 19 / 19 |
| December | 2.3°C | −5.5°C | 20.0°C24 December 2015 | −26.6°C28 December 2017 | 19 / 19 |
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 19 to 20 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.