Belvidere, Illinois Climate
United States
Pop. 25,132 Elev. 243 m / 797 ft
TZ: America/Chicago (UTC-5) ·
Belvidere is largely arid, with warm summers peaking at 85°F (29°C) in July and cold winters around 14°F (-10°C) in January. Humidity pushes the summer feels-like temperature to 93°F (34°C), while wind chill can drive winter lows to 5°F (-15°C). Precipitation occurs on roughly 43 days per year (30.6 in / 778 mm total), with snow on 6 days and 35 in (884 mm) of annual accumulation. The city averages 116 sunny days per year and around 32 thunderstorm days. Nearby lake water reaches 77°F (25°C) in summer.
| Temperature | 85°F (30°C) high | 14°F (-10°C) low |
| Feels like | 93°F (34°C) high | 5°F (-15°C) low |
| Rain | 43 days | 30.6 in (778 mm) /yr |
| Snow | 6 days | 34.8 in (884 mm) /yr |
| Sky | 116 sunny | 32 stormy |
| Wind | 2.5 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, May, Sep, Oct
Sky & Air by Month
Cloud cover (%)
55
Jan 64
Feb 57
Mar 67
Apr 60
May 53
Jun 60
Jul 51
Aug 36
Sep 46
Oct 57
Nov 77
Dec Humidity (%)
60
Jan 66
Feb 60
Mar 60
Apr 62
May 63
Jun 71
Jul 73
Aug 69
Sep 68
Oct 67
Nov 75
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 14 mi Chicago Rockford International Airport (RFD)
Ski resort 33 mi The Mountain Top at Grand Geneva Resort & Spa
National park 75 mi Historic Pullman Foundation Exhibit Hall
Hospital 7 mi MercyHealth - Riverside Medical Center
Hiking trail 9 mi Lone Rock Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 30°F -1°C | 14°F -10°C | 0.5 in 13 mm | 2.5 in65 mm | 12 |
| February | 33°F 0°C | 17°F -8°C | 0.2 in 4 mm | 8.2 in208 mm | 6 |
| March | 56°F 13°C | 34°F 1°C | 3.4 in 86 mm | 6.4 in164 mm | 9 |
| April | 60°F 16°C | 41°F 5°C | 3.1 in 79 mm | 0.1 in2 mm | 4 |
| May | 68°F 20°C | 49°F 9°C | 3.1 in 79 mm | — | 9 |
| June | 84°F 29°C | 64°F 18°C | 4.0 in 101 mm | — | 10 |
| July | 85°F 30°C | 68°F 20°C | 5.1 in 129 mm | — | 7 |
| August | 79°F 26°C | 62°F 17°C | 4.2 in 106 mm | — | 14 |
| September | 77°F 25°C | 56°F 13°C | 2.7 in 69 mm | — | 18 |
| October | 65°F 19°C | 48°F 9°C | 1.5 in 38 mm | — | 13 |
| November | 49°F 9°C | 34°F 1°C | 1.0 in 25 mm | 10.1 in257 mm | 10 |
| December | 33°F 1°C | 19°F -7°C | 1.8 in 47 mm | 7.5 in190 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 12 | 1 |
| February | 6 | 0 |
| March | 9 | 4 |
| April | 4 | 2 |
| May | 9 | 2 |
| June | 10 | 4 |
| July | 7 | 7 |
| August | 14 | 6 |
| September | 18 | 4 |
| October | 13 | 1 |
| November | 10 | 0 |
| December | 4 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 36°F 2°C |
| April | 46°F 8°C |
| May | 56°F 13°C |
| June | 69°F 21°C |
| July | 77°F 25°C |
| August | 72°F 22°C |
| September | 65°F 18°C |
| October | 58°F 14°C |
| November | 42°F 5°C |
| December | 32°F 0°C |