Weather World
Town of Decatur, Tennessee
Decatur Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 46°F Lo 31°F | Hi 52°F Lo 36°F | Hi 60°F Lo 42°F | Hi 69°F Lo 49°F | Hi 78°F Lo 58°F | Hi 86°F Lo 65°F | Hi 88°F Lo 69°F | Hi 87°F Lo 67°F | Hi 82°F Lo 62°F | Hi 71°F Lo 52°F | Hi 59°F Lo 41°F | Hi 51°F Lo 36°F |
| 6 mph | 6 mph | 6 mph | 6 mph | 5 mph | 4 mph | 4 mph | 4 mph | 4 mph | 5 mph | 5 mph | 6 mph |
| 5.8 in | 5.9 in | 6.3 in | 5.8 in | 5.4 in | 5 in | 6 in | 4.5 in | 5.3 in | 4.6 in | 4.5 in | 6.7 in |
| 76% | 77% | 77% | 75% | 77% | 75% | 76% | 75% | 75% | 74% | 74% | 78% |
| 49% | 53% | 47% | 39% | 39% | 34% | 38% | 35% | 34% | 34% | 37% | 49% |
| 30.2 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.2 in | 30.2 in |
| 21 | 19 | 22 | 22 | 22 | 20 | 18 | 21 | 23 | 25 | 24 | 23 |
| 8 | 8 | 8 | 8 | 9 | 10 | 13 | 10 | 7 | 6 | 6 | 8 |
| 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 1 |
| 2 | 3 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
| 158 | 129 | 160 | 189 | 196 | 219 | 197 | 216 | 219 | 214 | 208 | 162 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 8°C Lo -1°C | Hi 11°C Lo 2°C | Hi 16°C Lo 5°C | Hi 21°C Lo 10°C | Hi 25°C Lo 15°C | Hi 30°C Lo 19°C | Hi 31°C Lo 20°C | Hi 31°C Lo 20°C | Hi 28°C Lo 17°C | Hi 22°C Lo 11°C | Hi 15°C Lo 5°C | Hi 11°C Lo 2°C |
| 10 km/h | 10 km/h | 10 km/h | 10 km/h | 8 km/h | 7 km/h | 6 km/h | 6 km/h | 7 km/h | 8 km/h | 9 km/h | 9 km/h |
| 147 mm | 149 mm | 161 mm | 147 mm | 136 mm | 126 mm | 151 mm | 113 mm | 135 mm | 116 mm | 115 mm | 171 mm |
| 76% | 77% | 77% | 75% | 77% | 75% | 76% | 75% | 75% | 74% | 74% | 78% |
| 49% | 53% | 47% | 39% | 39% | 34% | 38% | 35% | 34% | 34% | 37% | 49% |
| 1021 mb | 1020 mb | 1019 mb | 1017 mb | 1016 mb | 1015 mb | 1016 mb | 1016 mb | 1017 mb | 1018 mb | 1021 mb | 1021 mb |
| 21 | 19 | 22 | 22 | 22 | 20 | 18 | 21 | 23 | 25 | 24 | 23 |
| 8 | 8 | 8 | 8 | 9 | 10 | 13 | 10 | 7 | 6 | 6 | 8 |
| 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 1 |
| 2 | 3 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
| 158 | 129 | 160 | 189 | 196 | 219 | 197 | 216 | 219 | 214 | 208 | 162 |
| 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.