Chatsworth, IA
Climate overview — based on NOAA 1991-2020 normals from HAWARDEN, IA US.
Year-round temperatures (°F)
Climate summary
Chatsworth has an annual average temperature of 46.7°F with about 29.9 inches of precipitation per year and 30.6 inches of snow. The warmest month is July (average high 84.9°F), and the coldest is January (average low 7.2°F). June is typically the wettest month (4.36 in) and January the driest (0.70 in). Snow typically falls from November through May.
Best time to visit Chatsworth
Full guide →Climate change signal
All-time records →13 of 366 (3.6%) of Chatsworth'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.
| 1920s | 0 | |
| 1930s | 41 | |
| 1940s | 67 | |
| 1950s | 49 | |
| 1960s | 45 | |
| 1970s | 21 | |
| 1980s | 39 | |
| 1990s | 33 | |
| 2000s | 33 | |
| 2010s | 37 | |
| 2020s | 1 |
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 | 26.9°F | 7.2°F | 17.0°F | 0.70 in | 6.8 in | 5 |
| February | 32.0°F | 11.3°F | 21.7°F | 0.79 in | 6.4 in | 5 |
| March | 44.9°F | 22.8°F | 33.9°F | 1.69 in | 4.4 in | 6 |
| April | 59.2°F | 34.0°F | 46.6°F | 3.15 in | 2.3 in | 9 |
| May | 70.7°F | 46.7°F | 58.7°F | 4.04 in | 0.2 in | 11 |
| June | 80.8°F | 58.0°F | 69.4°F | 4.36 in | — | 10 |
| July | 84.9°F | 62.1°F | 73.5°F | 3.19 in | — | 8 |
| August | 82.7°F | 59.3°F | 71.0°F | 3.57 in | — | 9 |
| September | 75.9°F | 49.7°F | 62.8°F | 3.25 in | — | 7 |
| October | 61.8°F | 36.4°F | 49.1°F | 2.54 in | 0.1 in | 7 |
| November | 45.2°F | 23.4°F | 34.3°F | 1.31 in | 3.1 in | 5 |
| December | 31.4°F | 12.7°F | 22.1°F | 1.27 in | 7.3 in | 5 |
Climate twins of Chatsworth
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).