Rison, AR
Climate overview — based on NOAA 1991-2020 normals from RISON, AR US.
Year-round temperatures (°F)
Avg high
Avg low
Climate summary
Rison has an annual average temperature of 63.1°F with about 0 inches of precipitation per year. The warmest month is July (average high 91.0°F), and the coldest is January (average low 33.7°F).
Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
38.1°F
warmest to coldest month
Best time to visit Rison
Full guide →Climate change signal
All-time records →12 of 366 (3.3%) of Rison'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 | 49 | |
| 1900s | 76 | |
| 1910s | 2 | |
| 1920s | 132 | |
| 1930s | 66 | |
| 1940s | 0 | |
| 1950s | 0 | |
| 2000s | 21 | |
| 2010s | 20 | |
| 2020s | 0 |
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 | 53.0°F | 33.7°F | 43.3°F | in | — | — |
| February | 56.9°F | 37.2°F | 47.1°F | in | — | — |
| March | 66.1°F | 44.6°F | 55.3°F | in | — | — |
| April | 74.9°F | 51.9°F | 63.4°F | in | — | — |
| May | 81.1°F | 60.8°F | 70.9°F | in | — | — |
| June | 88.2°F | 68.8°F | 78.5°F | in | — | — |
| July | 91.0°F | 71.7°F | 81.4°F | in | — | — |
| August | 90.7°F | 70.6°F | 80.7°F | in | — | — |
| September | 84.9°F | 63.8°F | 74.3°F | in | — | — |
| October | 75.0°F | 52.7°F | 63.8°F | in | — | — |
| November | 63.0°F | 43.0°F | 53.0°F | in | — | — |
| December | 54.7°F | 36.1°F | 45.4°F | in | — | — |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when