WeatherWX.com
Vandalia Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 34°F Lo 21°F | Hi 38°F Lo 24°F | Hi 50°F Lo 33°F | Hi 60°F Lo 43°F | Hi 71°F Lo 54°F | Hi 78°F Lo 62°F | Hi 82°F Lo 65°F | Hi 81°F Lo 64°F | Hi 75°F Lo 58°F | Hi 63°F Lo 47°F | Hi 50°F Lo 35°F | Hi 40°F Lo 28°F |
| 10 mph | 10 mph | 10 mph | 10 mph | 8 mph | 7 mph | 6 mph | 6 mph | 7 mph | 9 mph | 9 mph | 9 mph |
| 2.6 in | 3.1 in | 3.8 in | 4.5 in | 4.7 in | 4.5 in | 3.7 in | 3.2 in | 3 in | 3.3 in | 3.1 in | 3.4 in |
| 82% | 81% | 76% | 76% | 79% | 79% | 81% | 80% | 77% | 74% | 74% | 81% |
| 62% | 59% | 51% | 48% | 42% | 35% | 35% | 32% | 32% | 38% | 41% | 57% |
| 30.1 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 |
| 18 | 16 | 22 | 21 | 21 | 19 | 22 | 24 | 24 | 24 | 24 | 20 |
| 9 | 9 | 8 | 9 | 10 | 11 | 9 | 7 | 6 | 7 | 5 | 9 |
| 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 2 | 2 | 4 | 5 | 5 | 6 | 5 | 4 | 3 | 2 | 1 |
| 101 | 101 | 148 | 149 | 183 | 210 | 219 | 229 | 225 | 197 | 191 | 116 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 1°C Lo -6°C | Hi 3°C Lo -5°C | Hi 10°C Lo 1°C | Hi 16°C Lo 6°C | Hi 22°C Lo 12°C | Hi 26°C Lo 17°C | Hi 28°C Lo 19°C | Hi 27°C Lo 18°C | Hi 24°C Lo 14°C | Hi 17°C Lo 8°C | Hi 10°C Lo 2°C | Hi 5°C Lo -2°C |
| 16 km/h | 16 km/h | 16 km/h | 16 km/h | 13 km/h | 12 km/h | 10 km/h | 10 km/h | 11 km/h | 14 km/h | 15 km/h | 15 km/h |
| 67 mm | 79 mm | 96 mm | 114 mm | 118 mm | 115 mm | 93 mm | 82 mm | 77 mm | 85 mm | 80 mm | 86 mm |
| 82% | 81% | 76% | 76% | 79% | 79% | 81% | 80% | 77% | 74% | 74% | 81% |
| 62% | 59% | 51% | 48% | 42% | 35% | 35% | 32% | 32% | 38% | 41% | 57% |
| 1020 mb | 1020 mb | 1019 mb | 1015 mb | 1016 mb | 1014 mb | 1015 mb | 1015 mb | 1017 mb | 1017 mb | 1021 mb | 1020 mb |
| 18 | 16 | 22 | 21 | 21 | 19 | 22 | 24 | 24 | 24 | 24 | 20 |
| 9 | 9 | 8 | 9 | 10 | 11 | 9 | 7 | 6 | 7 | 5 | 9 |
| 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 2 | 2 | 4 | 5 | 5 | 6 | 5 | 4 | 3 | 2 | 1 |
| 101 | 101 | 148 | 149 | 183 | 210 | 219 | 229 | 225 | 197 | 191 | 116 |
| 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.