Aspinwall, IA
Climate overview — based on NOAA 1991-2020 normals from DENISON, IA US.
Year-round temperatures (°F)
Climate summary
Aspinwall has an annual average temperature of 47.4°F with about 33.6 inches of precipitation per year and 34.5 inches of snow. The warmest month is July (average high 83.1°F), and the coldest is January (average low 9.8°F). June is typically the wettest month (4.92 in) and January the driest (0.74 in). Snow typically falls from October through April.
Best time to visit Aspinwall
Full guide →Climate change signal
All-time records →28 of 366 (7.7%) of Aspinwall'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 | 17 | |
| 1900s | 20 | |
| 1910s | 27 | |
| 1920s | 19 | |
| 1930s | 107 | |
| 1940s | 20 | |
| 1950s | 15 | |
| 1960s | 15 | |
| 1970s | 10 | |
| 1980s | 27 | |
| 1990s | 22 | |
| 2000s | 30 | |
| 2010s | 19 | |
| 2020s | 18 |
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 | 27.4°F | 9.8°F | 18.6°F | 0.74 in | 8.1 in | 6 |
| February | 32.1°F | 13.7°F | 22.9°F | 0.98 in | 9.2 in | 7 |
| March | 45.3°F | 24.8°F | 35.1°F | 1.88 in | 4.7 in | 8 |
| April | 58.4°F | 35.6°F | 47.0°F | 3.38 in | 1.6 in | 10 |
| May | 69.5°F | 48.5°F | 59.0°F | 4.62 in | 0.1 in | 13 |
| June | 79.7°F | 59.2°F | 69.4°F | 4.92 in | — | 11 |
| July | 83.1°F | 63.0°F | 73.1°F | 4.13 in | — | 10 |
| August | 81.0°F | 60.6°F | 70.8°F | 4.43 in | — | 10 |
| September | 74.8°F | 51.7°F | 63.2°F | 3.27 in | — | 8 |
| October | 61.5°F | 39.3°F | 50.4°F | 2.64 in | 0.5 in | 8 |
| November | 45.5°F | 26.1°F | 35.8°F | 1.45 in | 2.4 in | 6 |
| December | 32.4°F | 15.9°F | 24.1°F | 1.20 in | 7.9 in | 6 |
Climate twins of Aspinwall
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).