Belvidere-Boone County Climate
| Average Winter Temp | 22.1° F -5.46° C |
| Average Summer Temp | 71.02°F 21.68°C |
| Average Annual Rainfall | 36.28 in 92.15 cm |
| Average Annual Snowfall | 35.2 in 89.41 cm |
| Ave. Annual Days Below Freezing | 144 |
| Heating Degree Days | 3,186 |
| Cooling Degree Days | 714 |
