Marshall Reservoir Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 32°F Lo 18°F | Hi 35°F Lo 19°F | Hi 44°F Lo 27°F | Hi 56°F Lo 37°F | Hi 68°F Lo 48°F | Hi 77°F Lo 56°F | Hi 83°F Lo 63°F | Hi 81°F Lo 61°F | Hi 73°F Lo 54°F | Hi 61°F Lo 44°F | Hi 48°F Lo 33°F | Hi 38°F Lo 25°F |
| 8 mph | 8 mph | 8 mph | 8 mph | 7 mph | 6 mph | 6 mph | 5 mph | 6 mph | 7 mph | 8 mph | 8 mph |
| 3.9 in | 4.4 in | 5.3 in | 4.8 in | 4.6 in | 4.9 in | 5.6 in | 4.9 in | 4.4 in | 5.3 in | 4 in | 5.9 in |
| 77% | 80% | 76% | 71% | 73% | 73% | 74% | 75% | 76% | 77% | 74% | 77% |
| 47% | 50% | 51% | 50% | 48% | 44% | 39% | 38% | 41% | 46% | 40% | 48% |
| 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 29.9 in | 29.9 in | 30.0 in | 30.1 in | 30.0 in | 30.1 in | 30.0 in |
| 17 | 14 | 19 | 20 | 23 | 22 | 21 | 23 | 24 | 24 | 22 | 18 |
| 8 | 7 | 8 | 8 | 8 | 8 | 10 | 8 | 6 | 7 | 6 | 8 |
| 6 | 7 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
| 1 | 0 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| 1 | 1 | 2 | 3 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 1 |
| 167 | 140 | 144 | 147 | 164 | 167 | 196 | 218 | 199 | 168 | 194 | 165 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 0°C Lo -8°C | Hi 2°C Lo -7°C | Hi 6°C Lo -3°C | Hi 13°C Lo 3°C | Hi 20°C Lo 9°C | Hi 25°C Lo 14°C | Hi 28°C Lo 17°C | Hi 27°C Lo 16°C | Hi 23°C Lo 12°C | Hi 16°C Lo 7°C | Hi 9°C Lo 1°C | Hi 3°C Lo -4°C |
| 13 km/h | 13 km/h | 13 km/h | 13 km/h | 11 km/h | 10 km/h | 9 km/h | 9 km/h | 9 km/h | 11 km/h | 12 km/h | 13 km/h |
| 100 mm | 111 mm | 134 mm | 122 mm | 116 mm | 125 mm | 143 mm | 124 mm | 111 mm | 134 mm | 102 mm | 149 mm |
| 77% | 80% | 76% | 71% | 73% | 73% | 74% | 75% | 76% | 77% | 74% | 77% |
| 47% | 50% | 51% | 50% | 48% | 44% | 39% | 38% | 41% | 46% | 40% | 48% |
| 1016 mb | 1016 mb | 1017 mb | 1015 mb | 1016 mb | 1013 mb | 1014 mb | 1015 mb | 1018 mb | 1017 mb | 1018 mb | 1017 mb |
| 17 | 14 | 19 | 20 | 23 | 22 | 21 | 23 | 24 | 24 | 22 | 18 |
| 8 | 7 | 8 | 8 | 8 | 8 | 10 | 8 | 6 | 7 | 6 | 8 |
| 6 | 7 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
| 1 | 0 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| 1 | 1 | 2 | 3 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 1 |
| 167 | 140 | 144 | 147 | 164 | 167 | 196 | 218 | 199 | 168 | 194 | 165 |
| 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.
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