Alta, IA
Climate overview — based on NOAA 1991-2020 normals from STORM LAKE, IA US.
Year-round temperatures (°F)
Climate summary
Alta has an annual average temperature of 47.1°F with about 33.8 inches of precipitation per year. The warmest month is July (average high 82.3°F), and the coldest is January (average low 8.8°F). June is typically the wettest month (5.33 in) and January the driest (0.77 in).
Best time to visit Alta
Full guide →Climate change signal
All-time records →33 of 366 (9%) of Alta'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 | 3 | |
| 1900s | 15 | |
| 1910s | 21 | |
| 1920s | 24 | |
| 1930s | 95 | |
| 1940s | 13 | |
| 1950s | 25 | |
| 1960s | 22 | |
| 1970s | 16 | |
| 1980s | 33 | |
| 1990s | 18 | |
| 2000s | 27 | |
| 2010s | 30 | |
| 2020s | 24 |
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 | 25.8°F | 8.8°F | 17.3°F | 0.77 in | — | — |
| February | 30.2°F | 13.3°F | 21.7°F | 1.01 in | — | — |
| March | 43.4°F | 25.1°F | 34.2°F | 1.74 in | — | — |
| April | 58.1°F | 36.9°F | 47.5°F | 3.53 in | — | — |
| May | 69.1°F | 49.4°F | 59.3°F | 4.87 in | — | — |
| June | 79.2°F | 60.2°F | 69.7°F | 5.33 in | — | — |
| July | 82.3°F | 63.7°F | 73.0°F | 3.83 in | — | — |
| August | 79.9°F | 61.4°F | 70.6°F | 4.43 in | — | — |
| September | 74.1°F | 52.6°F | 63.3°F | 2.96 in | — | — |
| October | 60.6°F | 39.6°F | 50.1°F | 2.42 in | — | — |
| November | 44.3°F | 26.6°F | 35.5°F | 1.75 in | — | — |
| December | 31.1°F | 15.3°F | 23.2°F | 1.11 in | — | — |
Climate twins of Alta
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).