ROSCOMMON COUNTY AIRPORT weather by month
Averages and records for each calendar month at ROSCOMMON COUNTY AIRPORT, United States, from 1964 to 2026. The warmest month is July, averaging 26.7°C; the coolest is January at −3.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −3.3°C | −11.8°C | 12.2°C18 January 1996 | −32.2°C4 January 1981 | 62 / 62 |
| February | −1.7°C | −12.0°C | 20.6°C27 February 2024 | −36.7°C17 February 1979 | 62 / 62 |
| March | 4.2°C | −7.0°C | 29.4°C21 March 2012 | −31.0°C3 March 2014 | 62 / 62 |
| April | 11.8°C | −0.2°C | 30.0°C22 April 1980 | −16.7°C6 April 2003 | 62 / 62 |
| May | 19.3°C | 5.8°C | 32.8°C27 May 2018 | −6.1°C2 May 1966 | 62 / 62 |
| June | 24.3°C | 10.7°C | 39.4°C19 June 1995 | −1.7°C11 June 1972 | 62 / 62 |
| July | 26.7°C | 13.1°C | 36.7°C20 July 1987 | 0.6°C6 July 1965 | 63 / 63 |
| August | 25.2°C | 12.2°C | 35.6°C7 August 2001 | −1.7°C29 August 1982 | 63 / 63 |
| September | 20.8°C | 8.2°C | 33.3°C7 September 1985 | −6.1°C27 September 1989 | 62 / 63 |
| October | 13.5°C | 3.0°C | 30.6°C4 October 2025 | −8.9°C30 October 1966 | 62 / 62 |
| November | 5.8°C | −2.0°C | 22.8°C9 November 2020 | −20.6°C29 November 1995 | 62 / 62 |
| December | −0.5°C | −7.6°C | 17.8°C5 December 2001 | −29.4°C30 December 1976 | 62 / 62 |
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 62 to 63 years each.
See what ROSCOMMON COUNTY AIRPORT is doing right now
Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
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.