Iatan, MO
Climate overview — based on NOAA 1991-2020 normals from ATCHISON, KS US.
Year-round temperatures (°F)
Climate summary
Iatan has an annual average temperature of 54.2°F with about 36.4 inches of precipitation per year and 17 inches of snow. The warmest month is July (average high 87.6°F), and the coldest is January (average low 18.4°F). May is typically the wettest month (5.32 in) and January the driest (0.93 in). Snow typically falls from October through April.
Best time to visit Iatan
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Iatan'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 | 49 | |
| 1900s | 21 | |
| 1910s | 58 | |
| 1920s | 27 | |
| 1930s | 100 | |
| 1940s | 24 | |
| 1950s | 18 | |
| 1960s | 16 | |
| 1970s | 8 | |
| 1980s | 23 | |
| 1990s | 11 | |
| 2000s | 11 | |
| 2010s | 0 | |
| 2020s | 0 |
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 | 36.2°F | 18.4°F | 27.3°F | 0.93 in | 5.0 in | 5 |
| February | 41.6°F | 22.8°F | 32.2°F | 1.20 in | 4.8 in | 5 |
| March | 54.0°F | 32.4°F | 43.2°F | 1.92 in | 1.8 in | 7 |
| April | 65.0°F | 42.9°F | 54.0°F | 3.42 in | 0.4 in | 10 |
| May | 74.4°F | 55.4°F | 64.9°F | 5.32 in | — | 11 |
| June | 83.7°F | 65.2°F | 74.4°F | 4.87 in | — | 10 |
| July | 87.6°F | 69.3°F | 78.4°F | 5.17 in | — | 9 |
| August | 86.4°F | 66.5°F | 76.5°F | 3.75 in | — | 8 |
| September | 78.9°F | 58.1°F | 68.5°F | 3.48 in | — | 8 |
| October | 66.6°F | 46.2°F | 56.4°F | 3.10 in | 0.3 in | 7 |
| November | 51.9°F | 33.3°F | 42.6°F | 1.81 in | 0.9 in | 5 |
| December | 40.1°F | 23.4°F | 31.8°F | 1.41 in | 3.8 in | 5 |
Climate twins of Iatan
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).