Weather World
Haystack Mountain State Park Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 31°F Lo 19°F | Hi 34°F Lo 20°F | Hi 43°F Lo 28°F | Hi 55°F Lo 37°F | Hi 67°F Lo 48°F | Hi 75°F Lo 56°F | Hi 81°F Lo 63°F | Hi 79°F Lo 61°F | Hi 72°F Lo 55°F | Hi 60°F Lo 45°F | Hi 47°F Lo 34°F | Hi 37°F Lo 26°F |
| 8 mph | 8 mph | 8 mph | 8 mph | 7 mph | 6 mph | 5 mph | 5 mph | 6 mph | 7 mph | 8 mph | 8 mph |
| 4 in | 4.7 in | 5.5 in | 5.1 in | 5.6 in | 5.8 in | 6.3 in | 6 in | 5.7 in | 6 in | 4.3 in | 6.3 in |
| 78% | 81% | 77% | 73% | 75% | 75% | 76% | 77% | 78% | 79% | 76% | 79% |
| 50% | 53% | 53% | 51% | 50% | 44% | 41% | 40% | 43% | 45% | 41% | 51% |
| 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 29.9 in | 30.0 in | 30.0 in | 30.1 in | 30.0 in | 30.1 in | 30.1 in |
| 17 | 13 | 18 | 19 | 21 | 20 | 21 | 22 | 23 | 23 | 22 | 18 |
| 9 | 9 | 9 | 9 | 10 | 10 | 11 | 10 | 7 | 8 | 7 | 8 |
| 6 | 7 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
| 1 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 1 | 1 |
| 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 3 | 2 | 2 | 1 |
| 151 | 128 | 139 | 146 | 168 | 185 | 211 | 213 | 193 | 166 | 185 | 150 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi -0°C Lo -7°C | Hi 1°C Lo -7°C | Hi 6°C Lo -3°C | Hi 13°C Lo 3°C | Hi 19°C Lo 9°C | Hi 24°C Lo 14°C | Hi 27°C Lo 17°C | Hi 26°C Lo 16°C | Hi 22°C Lo 13°C | Hi 15°C Lo 7°C | Hi 9°C Lo 1°C | Hi 3°C Lo -4°C |
| 14 km/h | 13 km/h | 14 km/h | 13 km/h | 11 km/h | 10 km/h | 9 km/h | 8 km/h | 9 km/h | 11 km/h | 12 km/h | 13 km/h |
| 103 mm | 118 mm | 139 mm | 130 mm | 143 mm | 146 mm | 161 mm | 152 mm | 146 mm | 152 mm | 109 mm | 161 mm |
| 78% | 81% | 77% | 73% | 75% | 75% | 76% | 77% | 78% | 79% | 76% | 79% |
| 50% | 53% | 53% | 51% | 50% | 44% | 41% | 40% | 43% | 45% | 41% | 51% |
| 1017 mb | 1017 mb | 1017 mb | 1015 mb | 1016 mb | 1014 mb | 1014 mb | 1016 mb | 1018 mb | 1017 mb | 1018 mb | 1018 mb |
| 17 | 13 | 18 | 19 | 21 | 20 | 21 | 22 | 23 | 23 | 22 | 18 |
| 9 | 9 | 9 | 9 | 10 | 10 | 11 | 10 | 7 | 8 | 7 | 8 |
| 6 | 7 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
| 1 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 1 | 1 |
| 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 3 | 2 | 2 | 1 |
| 151 | 128 | 139 | 146 | 168 | 185 | 211 | 213 | 193 | 166 | 185 | 150 |
| 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.