Climate - Pontiac - Illinois
| Jan | Feb | March | April | May | June | |
|---|---|---|---|---|---|---|
| Average high in °F | 30 | 36 | 48 | 62 | 73 | 82 |
| Average low in °F | 14 | 18 | 29 | 39 | 50 | 60 |
| Av. precipitation - inch | 1.61 | 1.46 | 2.83 | 3.43 | 3.82 | 4.09 |
| July | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Average high in °F | 85 | 83 | 77 | 65 | 49 | 35 |
| Average low in °F | 64 | 62 | 53 | 42 | 31 | 20 |
| Av. precipitation - inch | 4.06 | 3.54 | 3.03 | 2.68 | 3.03 | 2.52 |
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Pontiac Climate Graph - Illinois Climate Chart
Totals and averages
| Annual average high temperature | 60.3 °F |
| Annual average low temperature | 40.0 °F |
| Average temperature | 50.2 °F |
| Average annual precipitation | 36.1 in. |