Weather World
Massac County Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 42°F Lo 28°F | Hi 47°F Lo 32°F | Hi 58°F Lo 41°F | Hi 67°F Lo 49°F | Hi 76°F Lo 59°F | Hi 86°F Lo 67°F | Hi 89°F Lo 70°F | Hi 88°F Lo 68°F | Hi 83°F Lo 63°F | Hi 70°F Lo 52°F | Hi 57°F Lo 40°F | Hi 47°F Lo 34°F |
| 9 mph | 9 mph | 9 mph | 9 mph | 7 mph | 6 mph | 6 mph | 6 mph | 6 mph | 8 mph | 8 mph | 8 mph |
| 4.7 in | 5.7 in | 6.6 in | 8 in | 6.4 in | 4.6 in | 4.5 in | 3.5 in | 4.1 in | 4.9 in | 4.8 in | 5.3 in |
| 76% | 78% | 77% | 77% | 79% | 76% | 76% | 73% | 70% | 68% | 72% | 77% |
| 50% | 51% | 49% | 43% | 41% | 30% | 32% | 29% | 29% | 31% | 37% | 49% |
| 30.2 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 29.9 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 22 | 20 | 22 | 22 | 20 | 21 | 23 | 23 | 24 | 25 | 24 | 23 |
| 6 | 6 | 8 | 8 | 11 | 9 | 8 | 8 | 6 | 6 | 5 | 6 |
| 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 |
| 2 | 3 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
| 163 | 141 | 157 | 170 | 185 | 230 | 230 | 246 | 237 | 224 | 207 | 161 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 6°C Lo -2°C | Hi 8°C Lo -0°C | Hi 14°C Lo 5°C | Hi 19°C Lo 9°C | Hi 25°C Lo 15°C | Hi 30°C Lo 20°C | Hi 32°C Lo 21°C | Hi 31°C Lo 20°C | Hi 28°C Lo 17°C | Hi 21°C Lo 11°C | Hi 14°C Lo 5°C | Hi 9°C Lo 1°C |
| 14 km/h | 14 km/h | 14 km/h | 14 km/h | 12 km/h | 10 km/h | 9 km/h | 9 km/h | 10 km/h | 13 km/h | 13 km/h | 13 km/h |
| 120 mm | 146 mm | 168 mm | 204 mm | 163 mm | 116 mm | 113 mm | 89 mm | 104 mm | 124 mm | 122 mm | 134 mm |
| 76% | 78% | 77% | 77% | 79% | 76% | 76% | 73% | 70% | 68% | 72% | 77% |
| 50% | 51% | 49% | 43% | 41% | 30% | 32% | 29% | 29% | 31% | 37% | 49% |
| 1021 mb | 1020 mb | 1018 mb | 1015 mb | 1015 mb | 1014 mb | 1015 mb | 1015 mb | 1017 mb | 1018 mb | 1021 mb | 1021 mb |
| 22 | 20 | 22 | 22 | 20 | 21 | 23 | 23 | 24 | 25 | 24 | 23 |
| 6 | 6 | 8 | 8 | 11 | 9 | 8 | 8 | 6 | 6 | 5 | 6 |
| 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 |
| 2 | 3 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
| 163 | 141 | 157 | 170 | 185 | 230 | 230 | 246 | 237 | 224 | 207 | 161 |
| 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.