Weather World
Town of Winchester, MA
Winchester Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 34°F Lo 22°F | Hi 37°F Lo 23°F | Hi 45°F Lo 31°F | Hi 56°F Lo 40°F | Hi 67°F Lo 50°F | Hi 76°F Lo 59°F | Hi 83°F Lo 66°F | Hi 81°F Lo 65°F | Hi 74°F Lo 58°F | Hi 62°F Lo 48°F | Hi 50°F Lo 37°F | Hi 40°F Lo 29°F |
| 9 mph | 9 mph | 9 mph | 8 mph | 7 mph | 7 mph | 6 mph | 6 mph | 6 mph | 7 mph | 8 mph | 8 mph |
| 3.9 in | 4.2 in | 5.3 in | 4.3 in | 3.9 in | 4.3 in | 4.8 in | 3.9 in | 3.9 in | 4.9 in | 4 in | 5.5 in |
| 74% | 77% | 73% | 68% | 70% | 71% | 71% | 71% | 73% | 73% | 70% | 75% |
| 47% | 50% | 51% | 50% | 47% | 43% | 38% | 36% | 40% | 45% | 39% | 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 |
| 20 | 16 | 20 | 22 | 23 | 21 | 22 | 23 | 24 | 24 | 23 | 21 |
| 7 | 7 | 8 | 8 | 8 | 9 | 9 | 8 | 6 | 7 | 6 | 8 |
| 4 | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 |
| 1 | 1 | 2 | 3 | 5 | 6 | 5 | 6 | 4 | 3 | 2 | 1 |
| 174 | 144 | 147 | 154 | 181 | 192 | 217 | 226 | 200 | 172 | 198 | 166 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 1°C Lo -5°C | Hi 3°C Lo -5°C | Hi 7°C Lo -1°C | Hi 13°C Lo 5°C | Hi 19°C Lo 10°C | Hi 25°C Lo 15°C | Hi 28°C Lo 19°C | Hi 28°C Lo 18°C | Hi 23°C Lo 15°C | Hi 17°C Lo 9°C | Hi 10°C Lo 3°C | Hi 5°C Lo -2°C |
| 14 km/h | 14 km/h | 14 km/h | 13 km/h | 11 km/h | 10 km/h | 10 km/h | 9 km/h | 10 km/h | 12 km/h | 13 km/h | 14 km/h |
| 99 mm | 107 mm | 133 mm | 110 mm | 99 mm | 108 mm | 122 mm | 98 mm | 99 mm | 125 mm | 102 mm | 141 mm |
| 74% | 77% | 73% | 68% | 70% | 71% | 71% | 71% | 73% | 73% | 70% | 75% |
| 47% | 50% | 51% | 50% | 47% | 43% | 38% | 36% | 40% | 45% | 39% | 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 |
| 20 | 16 | 20 | 22 | 23 | 21 | 22 | 23 | 24 | 24 | 23 | 21 |
| 7 | 7 | 8 | 8 | 8 | 9 | 9 | 8 | 6 | 7 | 6 | 8 |
| 4 | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 |
| 1 | 1 | 2 | 3 | 5 | 6 | 5 | 6 | 4 | 3 | 2 | 1 |
| 174 | 144 | 147 | 154 | 181 | 192 | 217 | 226 | 200 | 172 | 198 | 166 |
| 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.