John Smith Reservoir Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 39°F Lo 26°F | Hi 40°F Lo 26°F | Hi 45°F Lo 29°F | Hi 52°F Lo 33°F | Hi 62°F Lo 39°F | Hi 71°F Lo 46°F | Hi 82°F Lo 53°F | Hi 81°F Lo 53°F | Hi 74°F Lo 47°F | Hi 59°F Lo 39°F | Hi 45°F Lo 31°F | Hi 38°F Lo 26°F |
| 5 mph | 5 mph | 6 mph | 6 mph | 6 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph |
| 3 in | 3 in | 3 in | 2.2 in | 1.8 in | 0.9 in | 0.4 in | 0.4 in | 0.8 in | 1.9 in | 3.2 in | 4.8 in |
| 84% | 81% | 79% | 70% | 65% | 60% | 52% | 52% | 54% | 64% | 76% | 84% |
| 49% | 49% | 50% | 39% | 31% | 21% | 9% | 11% | 17% | 30% | 43% | 53% |
| 30.2 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 29.9 in | 29.9 in | 30.1 in | 30.1 in |
| 16 | 14 | 16 | 21 | 24 | 27 | 29 | 29 | 28 | 26 | 18 | 14 |
| 9 | 8 | 9 | 7 | 6 | 4 | 2 | 2 | 2 | 4 | 8 | 10 |
| 6 | 6 | 7 | 3 | 1 | 0 | 0 | 0 | 0 | 1 | 4 | 8 |
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 2 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 3 | 2 | 1 | 1 |
| 145 | 132 | 145 | 194 | 226 | 268 | 323 | 338 | 299 | 241 | 175 | 140 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 4°C Lo -4°C | Hi 5°C Lo -3°C | Hi 7°C Lo -2°C | Hi 11°C Lo 1°C | Hi 17°C Lo 4°C | Hi 22°C Lo 8°C | Hi 28°C Lo 12°C | Hi 27°C Lo 12°C | Hi 23°C Lo 9°C | Hi 15°C Lo 4°C | Hi 7°C Lo -1°C | Hi 3°C Lo -4°C |
| 8 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 9 km/h | 8 km/h | 8 km/h | 8 km/h | 8 km/h | 8 km/h | 8 km/h |
| 75 mm | 76 mm | 77 mm | 55 mm | 45 mm | 24 mm | 9 mm | 9 mm | 21 mm | 47 mm | 81 mm | 123 mm |
| 84% | 81% | 79% | 70% | 65% | 60% | 52% | 52% | 54% | 64% | 76% | 84% |
| 49% | 49% | 50% | 39% | 31% | 21% | 9% | 11% | 17% | 30% | 43% | 53% |
| 1022 mb | 1020 mb | 1018 mb | 1017 mb | 1016 mb | 1015 mb | 1015 mb | 1015 mb | 1014 mb | 1013 mb | 1019 mb | 1021 mb |
| 16 | 14 | 16 | 21 | 24 | 27 | 29 | 29 | 28 | 26 | 18 | 14 |
| 9 | 8 | 9 | 7 | 6 | 4 | 2 | 2 | 2 | 4 | 8 | 10 |
| 6 | 6 | 7 | 3 | 1 | 0 | 0 | 0 | 0 | 1 | 4 | 8 |
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 2 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 3 | 2 | 1 | 1 |
| 145 | 132 | 145 | 194 | 226 | 268 | 323 | 338 | 299 | 241 | 175 | 140 |
| 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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