Hartford Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 28°F Lo 12°F | Hi 31°F Lo 13°F | Hi 40°F Lo 22°F | Hi 53°F Lo 34°F | Hi 66°F Lo 46°F | Hi 75°F Lo 54°F | Hi 81°F Lo 60°F | Hi 79°F Lo 59°F | Hi 72°F Lo 51°F | Hi 58°F Lo 41°F | Hi 44°F Lo 29°F | Hi 33°F Lo 20°F |
| 7 mph | 7 mph | 7 mph | 7 mph | 6 mph | 5 mph | 5 mph | 5 mph | 5 mph | 6 mph | 6 mph | 6 mph |
| 3.1 in | 3.2 in | 3.8 in | 4.6 in | 4.1 in | 4.9 in | 4.5 in | 3.8 in | 3.4 in | 4.9 in | 3.4 in | 5 in |
| 85% | 85% | 82% | 75% | 75% | 76% | 76% | 78% | 79% | 80% | 78% | 82% |
| 59% | 61% | 59% | 56% | 51% | 47% | 40% | 40% | 42% | 51% | 48% | 58% |
| 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 |
| 15 | 12 | 17 | 20 | 23 | 22 | 23 | 24 | 25 | 23 | 20 | 16 |
| 9 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 5 | 7 | 7 | 9 |
| 7 | 8 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 6 |
| 1 | 1 | 2 | 1 | 2 | 2 | 2 | 2 | 3 | 1 | 1 | 1 |
| 1 | 1 | 1 | 2 | 4 | 5 | 5 | 5 | 3 | 2 | 1 | 1 |
| 109 | 94 | 104 | 120 | 152 | 154 | 193 | 208 | 197 | 140 | 155 | 119 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi -3°C Lo -11°C | Hi -1°C Lo -10°C | Hi 4°C Lo -6°C | Hi 11°C Lo 1°C | Hi 19°C Lo 8°C | Hi 24°C Lo 12°C | Hi 27°C Lo 16°C | Hi 26°C Lo 15°C | Hi 22°C Lo 11°C | Hi 14°C Lo 5°C | Hi 7°C Lo -2°C | Hi 1°C Lo -7°C |
| 11 km/h | 11 km/h | 11 km/h | 11 km/h | 10 km/h | 9 km/h | 8 km/h | 7 km/h | 8 km/h | 9 km/h | 10 km/h | 10 km/h |
| 80 mm | 82 mm | 96 mm | 116 mm | 105 mm | 124 mm | 113 mm | 98 mm | 86 mm | 124 mm | 87 mm | 126 mm |
| 85% | 85% | 82% | 75% | 75% | 76% | 76% | 78% | 79% | 80% | 78% | 82% |
| 59% | 61% | 59% | 56% | 51% | 47% | 40% | 40% | 42% | 51% | 48% | 58% |
| 1016 mb | 1016 mb | 1017 mb | 1015 mb | 1016 mb | 1013 mb | 1014 mb | 1015 mb | 1018 mb | 1017 mb | 1018 mb | 1017 mb |
| 15 | 12 | 17 | 20 | 23 | 22 | 23 | 24 | 25 | 23 | 20 | 16 |
| 9 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 5 | 7 | 7 | 9 |
| 7 | 8 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 6 |
| 1 | 1 | 2 | 1 | 2 | 2 | 2 | 2 | 3 | 1 | 1 | 1 |
| 1 | 1 | 1 | 2 | 4 | 5 | 5 | 5 | 3 | 2 | 1 | 1 |
| 109 | 94 | 104 | 120 | 152 | 154 | 193 | 208 | 197 | 140 | 155 | 119 |
| 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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