Rock Rapids, IA
Climate overview — based on NOAA 1991-2020 normals from ROCK RAPIDS, IA US.
Year-round temperatures (°F)
Climate summary
Rock Rapids has an annual average temperature of 46°F with about 29.3 inches of precipitation per year and 34.9 inches of snow. The warmest month is July (average high 84.7°F), and the coldest is January (average low 6.1°F). June is typically the wettest month (5.03 in) and January the driest (0.61 in). Snow typically falls from October through April.
Best time to visit Rock Rapids
Full guide →Climate change signal
All-time records →34 of 366 (9.3%) of Rock Rapids'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 | 16 | |
| 1900s | 7 | |
| 1910s | 26 | |
| 1920s | 15 | |
| 1930s | 69 | |
| 1940s | 23 | |
| 1950s | 22 | |
| 1960s | 20 | |
| 1970s | 18 | |
| 1980s | 47 | |
| 1990s | 18 | |
| 2000s | 33 | |
| 2010s | 26 | |
| 2020s | 26 |
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 | 25.2°F | 6.1°F | 15.6°F | 0.61 in | 6.0 in | 5 |
| February | 30.3°F | 10.4°F | 20.4°F | 0.70 in | 7.3 in | 5 |
| March | 43.2°F | 22.3°F | 32.7°F | 1.52 in | 5.6 in | 6 |
| April | 57.9°F | 33.8°F | 45.8°F | 3.03 in | 3.5 in | 9 |
| May | 70.3°F | 46.8°F | 58.5°F | 3.96 in | 0.1 in | 12 |
| June | 80.7°F | 58.3°F | 69.5°F | 5.03 in | — | 11 |
| July | 84.7°F | 61.8°F | 73.3°F | 3.59 in | — | 8 |
| August | 82.3°F | 59.0°F | 70.6°F | 3.12 in | — | 9 |
| September | 75.3°F | 49.6°F | 62.4°F | 3.24 in | — | 7 |
| October | 61.1°F | 36.2°F | 48.6°F | 2.23 in | 0.4 in | 7 |
| November | 44.2°F | 23.0°F | 33.6°F | 1.42 in | 3.6 in | 5 |
| December | 30.3°F | 12.1°F | 21.2°F | 0.82 in | 8.4 in | 5 |
Climate twins of Rock Rapids
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).