Weather World
Lemont Furnace Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 35°F Lo 22°F | Hi 40°F Lo 25°F | Hi 50°F Lo 33°F | Hi 61°F Lo 42°F | Hi 71°F Lo 53°F | Hi 78°F Lo 60°F | Hi 83°F Lo 64°F | Hi 81°F Lo 62°F | Hi 76°F Lo 57°F | Hi 63°F Lo 47°F | Hi 51°F Lo 36°F | Hi 42°F Lo 30°F |
| 8 mph | 8 mph | 8 mph | 7 mph | 6 mph | 6 mph | 5 mph | 5 mph | 5 mph | 6 mph | 7 mph | 7 mph |
| 4 in | 4.3 in | 4.3 in | 5.3 in | 6.1 in | 6.3 in | 6 in | 3.5 in | 4.4 in | 4.9 in | 3.6 in | 5 in |
| 84% | 83% | 78% | 77% | 79% | 77% | 77% | 77% | 77% | 78% | 77% | 82% |
| 70% | 66% | 57% | 52% | 50% | 45% | 44% | 41% | 40% | 45% | 49% | 65% |
| 30.1 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.0 in | 30.1 in | 30.1 in |
| 14 | 13 | 20 | 19 | 20 | 19 | 19 | 22 | 23 | 23 | 22 | 18 |
| 12 | 11 | 9 | 10 | 11 | 11 | 12 | 9 | 7 | 8 | 7 | 10 |
| 6 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 1 | 1 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 |
| 1 | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 1 |
| 68 | 79 | 123 | 131 | 150 | 166 | 181 | 194 | 186 | 168 | 152 | 90 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 2°C Lo -6°C | Hi 5°C Lo -4°C | Hi 10°C Lo 1°C | Hi 16°C Lo 6°C | Hi 22°C Lo 11°C | Hi 26°C Lo 16°C | Hi 28°C Lo 18°C | Hi 27°C Lo 17°C | Hi 24°C Lo 14°C | Hi 17°C Lo 8°C | Hi 10°C Lo 2°C | Hi 5°C Lo -1°C |
| 13 km/h | 12 km/h | 12 km/h | 12 km/h | 10 km/h | 9 km/h | 8 km/h | 7 km/h | 8 km/h | 10 km/h | 11 km/h | 12 km/h |
| 101 mm | 109 mm | 109 mm | 134 mm | 155 mm | 160 mm | 153 mm | 89 mm | 111 mm | 125 mm | 92 mm | 126 mm |
| 84% | 83% | 78% | 77% | 79% | 77% | 77% | 77% | 77% | 78% | 77% | 82% |
| 70% | 66% | 57% | 52% | 50% | 45% | 44% | 41% | 40% | 45% | 49% | 65% |
| 1020 mb | 1019 mb | 1018 mb | 1016 mb | 1016 mb | 1014 mb | 1015 mb | 1016 mb | 1018 mb | 1017 mb | 1020 mb | 1020 mb |
| 14 | 13 | 20 | 19 | 20 | 19 | 19 | 22 | 23 | 23 | 22 | 18 |
| 12 | 11 | 9 | 10 | 11 | 11 | 12 | 9 | 7 | 8 | 7 | 10 |
| 6 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 1 | 1 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 |
| 1 | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 1 |
| 68 | 79 | 123 | 131 | 150 | 166 | 181 | 194 | 186 | 168 | 152 | 90 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.