Dallas City, IL
Climate overview — based on NOAA 1991-2020 normals from FT MADISON, IA US.
Year-round temperatures (°F)
Climate summary
Dallas City has an annual average temperature of 52.3°F with about 39.4 inches of precipitation per year and 18.1 inches of snow. The warmest month is July (average high 85.1°F), and the coldest is January (average low 16.9°F). June is typically the wettest month (5.16 in) and January the driest (1.69 in). Snow typically falls from November through April.
Best time to visit Dallas City
Full guide →Climate change signal
All-time records →34 of 366 (9.3%) of Dallas City'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 | 22 | |
| 1900s | 5 | |
| 1910s | 11 | |
| 1950s | 56 | |
| 1960s | 69 | |
| 1970s | 45 | |
| 1980s | 47 | |
| 1990s | 20 | |
| 2000s | 30 | |
| 2010s | 43 | |
| 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 | 32.8°F | 16.9°F | 24.8°F | 1.69 in | 6.1 in | 8 |
| February | 37.5°F | 20.9°F | 29.2°F | 1.93 in | 4.6 in | 8 |
| March | 49.9°F | 31.6°F | 40.8°F | 2.72 in | 1.7 in | 10 |
| April | 62.2°F | 42.5°F | 52.4°F | 3.97 in | 0.5 in | 12 |
| May | 72.3°F | 53.8°F | 63.1°F | 5.11 in | — | 13 |
| June | 81.5°F | 63.4°F | 72.5°F | 5.16 in | — | 10 |
| July | 85.1°F | 67.5°F | 76.3°F | 4.06 in | — | 9 |
| August | 83.8°F | 65.6°F | 74.7°F | 3.80 in | — | 9 |
| September | 77.1°F | 57.2°F | 67.1°F | 3.51 in | — | 7 |
| October | 64.2°F | 45.2°F | 54.7°F | 3.06 in | 0.1 in | 9 |
| November | 49.7°F | 32.8°F | 41.3°F | 2.43 in | 0.8 in | 8 |
| December | 37.6°F | 22.7°F | 30.2°F | 1.92 in | 4.3 in | 8 |
Climate twins of Dallas City
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).