Hennessey, OK
Climate overview — based on NOAA 1991-2020 normals from HENNESSEY 4 ESE, OK US.
Year-round temperatures (°F)
Climate summary
Hennessey has an annual average temperature of 58.7°F with about 33.4 inches of precipitation per year and 9.1 inches of snow. The warmest month is July (average high 95.1°F), and the coldest is January (average low 23.6°F). May is typically the wettest month (5.03 in) and January the driest (1.25 in). Snow typically falls from November through March.
Best time to visit Hennessey
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Hennessey's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1890s | 31 | |
| 1910s | 15 | |
| 1920s | 48 | |
| 1930s | 59 | |
| 1940s | 37 | |
| 1950s | 68 | |
| 1960s | 27 | |
| 1970s | 22 | |
| 1980s | 19 | |
| 1990s | 12 | |
| 2000s | 14 | |
| 2010s | 14 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 47.3°F | 23.6°F | 35.5°F | 1.25 in | 3.1 in | 4 |
| February | 51.3°F | 26.7°F | 39.0°F | 1.44 in | 1.6 in | 5 |
| March | 60.7°F | 35.0°F | 47.8°F | 2.51 in | 1.2 in | 7 |
| April | 69.8°F | 43.7°F | 56.7°F | 3.53 in | — | 7 |
| May | 78.9°F | 55.4°F | 67.2°F | 5.03 in | — | 9 |
| June | 89.7°F | 65.4°F | 77.6°F | 4.48 in | — | 8 |
| July | 95.1°F | 69.8°F | 82.4°F | 3.00 in | — | 6 |
| August | 93.5°F | 67.8°F | 80.7°F | 3.49 in | — | 6 |
| September | 85.3°F | 60.1°F | 72.7°F | 2.26 in | — | 5 |
| October | 72.7°F | 47.3°F | 60.0°F | 2.93 in | — | 6 |
| November | 59.1°F | 34.9°F | 47.0°F | 1.83 in | 0.4 in | 5 |
| December | 48.4°F | 26.1°F | 37.2°F | 1.70 in | 2.8 in | 6 |
Climate twins of Hennessey
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).