Weather World
Gallatin County Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 41°F Lo 27°F | Hi 46°F Lo 31°F | Hi 57°F Lo 40°F | Hi 66°F Lo 48°F | Hi 75°F Lo 58°F | Hi 84°F Lo 67°F | Hi 87°F Lo 70°F | Hi 86°F Lo 68°F | Hi 81°F Lo 62°F | Hi 69°F Lo 51°F | Hi 56°F Lo 40°F | Hi 46°F Lo 33°F |
| 9 mph | 10 mph | 10 mph | 10 mph | 8 mph | 7 mph | 6 mph | 6 mph | 7 mph | 9 mph | 9 mph | 9 mph |
| 4.1 in | 4.6 in | 5.5 in | 7.7 in | 5.6 in | 5 in | 4.5 in | 3.8 in | 4.4 in | 4.3 in | 4.2 in | 4.7 in |
| 76% | 78% | 76% | 76% | 79% | 77% | 78% | 75% | 71% | 68% | 71% | 76% |
| 51% | 52% | 48% | 43% | 41% | 30% | 31% | 30% | 30% | 32% | 37% | 50% |
| 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 | 19 | 23 | 22 | 21 | 22 | 22 | 24 | 24 | 25 | 24 | 23 |
| 7 | 6 | 8 | 8 | 10 | 8 | 9 | 7 | 6 | 6 | 5 | 7 |
| 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 |
| 2 | 2 | 3 | 4 | 5 | 6 | 6 | 5 | 5 | 3 | 2 | 2 |
| 157 | 140 | 155 | 168 | 186 | 233 | 232 | 243 | 233 | 223 | 206 | 152 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 5°C Lo -3°C | Hi 8°C Lo -1°C | Hi 14°C Lo 4°C | Hi 19°C Lo 9°C | Hi 24°C Lo 15°C | Hi 29°C Lo 19°C | Hi 31°C Lo 21°C | Hi 30°C Lo 20°C | Hi 27°C Lo 17°C | Hi 21°C Lo 10°C | Hi 13°C Lo 4°C | Hi 8°C Lo 1°C |
| 15 km/h | 15 km/h | 16 km/h | 15 km/h | 13 km/h | 11 km/h | 9 km/h | 10 km/h | 11 km/h | 14 km/h | 14 km/h | 14 km/h |
| 105 mm | 117 mm | 139 mm | 195 mm | 142 mm | 127 mm | 115 mm | 96 mm | 113 mm | 108 mm | 108 mm | 118 mm |
| 76% | 78% | 76% | 76% | 79% | 77% | 78% | 75% | 71% | 68% | 71% | 76% |
| 51% | 52% | 48% | 43% | 41% | 30% | 31% | 30% | 30% | 32% | 37% | 50% |
| 1021 mb | 1020 mb | 1018 mb | 1015 mb | 1015 mb | 1014 mb | 1015 mb | 1015 mb | 1017 mb | 1018 mb | 1021 mb | 1020 mb |
| 22 | 19 | 23 | 22 | 21 | 22 | 22 | 24 | 24 | 25 | 24 | 23 |
| 7 | 6 | 8 | 8 | 10 | 8 | 9 | 7 | 6 | 6 | 5 | 7 |
| 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 |
| 2 | 2 | 3 | 4 | 5 | 6 | 6 | 5 | 5 | 3 | 2 | 2 |
| 157 | 140 | 155 | 168 | 186 | 233 | 232 | 243 | 233 | 223 | 206 | 152 |
| 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.