Hanover Park, IL
Climate overview — based on NOAA 1991-2020 normals from STREAMWOOD, IL US.
Year-round temperatures (°F)
Climate summary
Hanover Park has an annual average temperature of 49.6°F with about 38 inches of precipitation per year and 34 inches of snow. The warmest month is July (average high 86.9°F), and the coldest is January (average low 13.7°F). June is typically the wettest month (4.72 in) and February the driest (1.70 in). Snow typically falls from November through April.
Best time to visit Hanover Park
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Hanover Park'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 | 109 | |
| 2000s | 220 | |
| 2010s | 37 |
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 | 32.3°F | 13.7°F | 23.0°F | 1.90 in | 11.9 in | 10 |
| February | 36.7°F | 16.1°F | 26.4°F | 1.70 in | 6.0 in | 9 |
| March | 47.7°F | 25.3°F | 36.5°F | 2.09 in | 4.8 in | 11 |
| April | 61.0°F | 35.4°F | 48.2°F | 3.64 in | 0.7 in | 13 |
| May | 72.9°F | 46.5°F | 59.7°F | 4.66 in | — | 13 |
| June | 83.4°F | 57.0°F | 70.2°F | 4.72 in | — | 12 |
| July | 86.9°F | 61.4°F | 74.1°F | 3.34 in | — | 9 |
| August | 84.8°F | 59.8°F | 72.3°F | 4.45 in | — | 11 |
| September | 78.1°F | 51.4°F | 64.8°F | 3.58 in | — | 8 |
| October | 64.8°F | 39.6°F | 52.2°F | 3.51 in | 0.1 in | 10 |
| November | 49.8°F | 28.7°F | 39.2°F | 2.51 in | 1.8 in | 10 |
| December | 37.7°F | 18.9°F | 28.3°F | 1.92 in | 8.7 in | 12 |
Climate twins of Hanover Park
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).