Millerton, IA
Climate overview — based on NOAA 1991-2020 normals from ALLERTON, IA US.
Year-round temperatures (°F)
Climate summary
Millerton has an annual average temperature of 49.9°F with about 40.4 inches of precipitation per year. The warmest month is July (average high 84.8°F), and the coldest is January (average low 12.8°F). May is typically the wettest month (5.65 in) and January the driest (1.06 in).
Best time to visit Millerton
Full guide →Climate change signal
All-time records →87 of 366 (23.8%) of Millerton'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.
| 1900s | 43 | |
| 1910s | 131 | |
| 1940s | 0 | |
| 1950s | 0 | |
| 1970s | 2 | |
| 1980s | 0 | |
| 1990s | 17 | |
| 2000s | 42 | |
| 2010s | 77 | |
| 2020s | 54 |
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 | 31.5°F | 12.8°F | 22.2°F | 1.06 in | — | — |
| February | 36.7°F | 16.5°F | 26.6°F | 1.52 in | — | — |
| March | 49.2°F | 27.7°F | 38.4°F | 2.38 in | — | — |
| April | 61.5°F | 38.3°F | 49.9°F | 4.01 in | — | — |
| May | 71.1°F | 50.1°F | 60.6°F | 5.65 in | — | — |
| June | 80.1°F | 60.0°F | 70.1°F | 5.14 in | — | — |
| July | 84.8°F | 64.3°F | 74.5°F | 4.73 in | — | — |
| August | 82.9°F | 62.0°F | 72.5°F | 4.86 in | — | — |
| September | 75.9°F | 53.5°F | 64.7°F | 4.20 in | — | — |
| October | 63.5°F | 41.4°F | 52.5°F | 3.09 in | — | — |
| November | 48.8°F | 28.4°F | 38.6°F | 2.15 in | — | — |
| December | 36.6°F | 18.5°F | 27.6°F | 1.62 in | — | — |
Climate twins of Millerton
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).