WeatherWX.com
Roosevelt Island Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 37°F Lo 26°F | Hi 40°F Lo 27°F | Hi 48°F Lo 34°F | Hi 58°F Lo 44°F | Hi 69°F Lo 54°F | Hi 78°F Lo 63°F | Hi 84°F Lo 70°F | Hi 83°F Lo 69°F | Hi 76°F Lo 63°F | Hi 65°F Lo 52°F | Hi 53°F Lo 40°F | Hi 43°F Lo 33°F |
| 9 mph | 9 mph | 10 mph | 9 mph | 8 mph | 7 mph | 7 mph | 7 mph | 7 mph | 9 mph | 9 mph | 9 mph |
| 1.2 in | 1.3 in | 1.6 in | 1.3 in | 1.5 in | 1.6 in | 1.9 in | 1.8 in | 1.3 in | 1.7 in | 1.2 in | 1.7 in |
| 71% | 75% | 71% | 69% | 73% | 72% | 70% | 68% | 70% | 71% | 69% | 73% |
| 44% | 47% | 45% | 45% | 44% | 36% | 32% | 32% | 34% | 41% | 35% | 46% |
| 30.1 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 29.9 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 22 | 19 | 24 | 24 | 23 | 23 | 22 | 23 | 24 | 25 | 25 | 23 |
| 7 | 6 | 6 | 6 | 8 | 7 | 9 | 8 | 6 | 6 | 5 | 7 |
| 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 2 | 2 | 4 | 5 | 6 | 6 | 6 | 4 | 3 | 2 | 2 |
| 60 | 52 | 57 | 55 | 65 | 71 | 80 | 79 | 72 | 64 | 69 | 57 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 3°C Lo -4°C | Hi 4°C Lo -3°C | Hi 9°C Lo 1°C | Hi 15°C Lo 6°C | Hi 21°C Lo 12°C | Hi 26°C Lo 17°C | Hi 29°C Lo 21°C | Hi 28°C Lo 21°C | Hi 25°C Lo 17°C | Hi 18°C Lo 11°C | Hi 11°C Lo 5°C | Hi 6°C Lo 0°C |
| 15 km/h | 15 km/h | 15 km/h | 14 km/h | 12 km/h | 11 km/h | 11 km/h | 11 km/h | 12 km/h | 14 km/h | 15 km/h | 15 km/h |
| 30 mm | 32 mm | 40 mm | 33 mm | 39 mm | 42 mm | 48 mm | 46 mm | 33 mm | 44 mm | 30 mm | 44 mm |
| 71% | 75% | 71% | 69% | 73% | 72% | 70% | 68% | 70% | 71% | 69% | 73% |
| 44% | 47% | 45% | 45% | 44% | 36% | 32% | 32% | 34% | 41% | 35% | 46% |
| 1018 mb | 1018 mb | 1018 mb | 1015 mb | 1017 mb | 1014 mb | 1014 mb | 1015 mb | 1018 mb | 1017 mb | 1020 mb | 1018 mb |
| 22 | 19 | 24 | 24 | 23 | 23 | 22 | 23 | 24 | 25 | 25 | 23 |
| 7 | 6 | 6 | 6 | 8 | 7 | 9 | 8 | 6 | 6 | 5 | 7 |
| 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 2 | 2 | 4 | 5 | 6 | 6 | 6 | 4 | 3 | 2 | 2 |
| 60 | 52 | 57 | 55 | 65 | 71 | 80 | 79 | 72 | 64 | 69 | 57 |
| 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.