Stephenville weather by month
Measured at Stephenville/Clark Rgnl
Averages and records for each calendar month at Stephenville/Clark Rgnl, United States, from 1921 to 2026. The warmest month is August, averaging 35.2°C; the coolest is January at 13.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 13.4°C | 0.2°C | 30.6°C20 January 2000 | −18.9°C31 January 1949 | 80 / 83 |
| February | 16.1°C | 2.6°C | 35.6°C23 February 1996 | −17.7°C16 February 2021 | 79 / 82 |
| March | 20.2°C | 6.5°C | 35.6°C21 March 2026 | −12.8°C11 March 1948 | 77 / 79 |
| April | 24.6°C | 11.2°C | 39.4°C18 April 1925 | −3.9°C7 April 2009 | 76 / 79 |
| May | 28.2°C | 16.1°C | 39.4°C5 May 1984 | 2.2°C3 May 2013 | 76 / 78 |
| June | 32.5°C | 20.1°C | 42.8°C28 June 1980 | 10.6°C9 June 1923 | 76 / 79 |
| July | 34.8°C | 21.6°C | 43.9°C27 July 1925 | 11.1°C3 July 1924 | 78 / 80 |
| August | 35.2°C | 21.5°C | 43.3°C17 August 2023 | 10.0°C28 August 1992 | 77 / 79 |
| September | 31.1°C | 17.7°C | 43.3°C27 September 1953 | 0.6°C27 September 1942 | 80 / 83 |
| October | 25.8°C | 12.2°C | 39.4°C3 October 1951 | −6.1°C31 October 1993 | 81 / 81 |
| November | 19.4°C | 5.9°C | 33.3°C8 November 1980 | −11.7°C11 November 1950 | 79 / 81 |
| December | 14.7°C | 1.6°C | 31.7°C4 December 2005 | −22.2°C23 December 1989 | 79 / 82 |
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 76 to 81 years each.
See what Stephenville/Clark Rgnl 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.