Winfield, IL
Climate overview — based on NOAA 1991-2020 normals from WEST CHICAGO DUPAGE AP, IL US.
Year-round temperatures (°F)
Climate summary
Winfield has an annual average temperature of 49.7°F with about 33.2 inches of precipitation per year. The warmest month is July (average high 84.0°F), and the coldest is January (average low 16.1°F). May is typically the wettest month (4.34 in) and February the driest (1.24 in).
Best time to visit Winfield
Full guide →Climate change signal
All-time records →160 of 366 (43.7%) of Winfield'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.
| 1990s | 31 | |
| 2000s | 106 | |
| 2010s | 128 | |
| 2020s | 101 |
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 | 30.5°F | 16.1°F | 23.3°F | 1.27 in | — | 8 |
| February | 34.9°F | 19.0°F | 27.0°F | 1.24 in | — | 7 |
| March | 47.0°F | 28.3°F | 37.7°F | 1.97 in | — | 9 |
| April | 59.6°F | 37.9°F | 48.8°F | 3.44 in | — | 12 |
| May | 70.9°F | 48.7°F | 59.8°F | 4.34 in | — | 14 |
| June | 80.6°F | 58.9°F | 69.7°F | 3.65 in | — | 12 |
| July | 84.0°F | 63.3°F | 73.7°F | 3.62 in | — | 10 |
| August | 82.0°F | 61.8°F | 71.9°F | 3.84 in | — | 11 |
| September | 75.5°F | 53.7°F | 64.6°F | 3.00 in | — | 10 |
| October | 62.4°F | 42.0°F | 52.2°F | 2.99 in | — | 11 |
| November | 47.7°F | 31.1°F | 39.4°F | 2.20 in | — | 9 |
| December | 35.4°F | 21.4°F | 28.4°F | 1.67 in | — | 9 |
Climate twins of Winfield
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).