Weather World
Old Tappan Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 36°F Lo 24°F | Hi 39°F Lo 25°F | Hi 48°F Lo 32°F | Hi 59°F Lo 42°F | Hi 70°F Lo 52°F | Hi 79°F Lo 61°F | Hi 85°F Lo 68°F | Hi 83°F Lo 67°F | Hi 76°F Lo 60°F | Hi 64°F Lo 50°F | Hi 51°F Lo 38°F | Hi 42°F Lo 31°F |
| 8 mph | 8 mph | 8 mph | 8 mph | 7 mph | 6 mph | 6 mph | 6 mph | 6 mph | 7 mph | 7 mph | 7 mph |
| 3.7 in | 4.1 in | 4.7 in | 4.2 in | 4.2 in | 4.6 in | 5.5 in | 5.1 in | 4.5 in | 4.8 in | 3.7 in | 5.6 in |
| 73% | 76% | 71% | 68% | 71% | 70% | 69% | 68% | 71% | 72% | 70% | 75% |
| 46% | 48% | 48% | 48% | 47% | 41% | 37% | 37% | 39% | 43% | 37% | 49% |
| 30.0 in | 30.1 in | 30.1 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 |
| 20 | 16 | 21 | 22 | 22 | 21 | 21 | 22 | 23 | 25 | 24 | 22 |
| 7 | 8 | 8 | 7 | 9 | 9 | 10 | 9 | 7 | 6 | 6 | 7 |
| 4 | 5 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| 1 | 1 | 2 | 3 | 5 | 6 | 6 | 6 | 4 | 3 | 2 | 1 |
| 167 | 141 | 156 | 151 | 179 | 193 | 210 | 211 | 195 | 171 | 202 | 160 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 2°C Lo -4°C | Hi 4°C Lo -4°C | Hi 9°C Lo 0°C | Hi 15°C Lo 6°C | Hi 21°C Lo 11°C | Hi 26°C Lo 16°C | Hi 30°C Lo 20°C | Hi 28°C Lo 19°C | Hi 24°C Lo 15°C | Hi 18°C Lo 10°C | Hi 11°C Lo 3°C | Hi 6°C Lo -1°C |
| 13 km/h | 13 km/h | 13 km/h | 13 km/h | 10 km/h | 10 km/h | 9 km/h | 9 km/h | 10 km/h | 11 km/h | 12 km/h | 12 km/h |
| 95 mm | 104 mm | 119 mm | 106 mm | 107 mm | 116 mm | 139 mm | 129 mm | 114 mm | 122 mm | 93 mm | 143 mm |
| 73% | 76% | 71% | 68% | 71% | 70% | 69% | 68% | 71% | 72% | 70% | 75% |
| 46% | 48% | 48% | 48% | 47% | 41% | 37% | 37% | 39% | 43% | 37% | 49% |
| 1018 mb | 1018 mb | 1018 mb | 1015 mb | 1016 mb | 1014 mb | 1014 mb | 1015 mb | 1018 mb | 1017 mb | 1019 mb | 1019 mb |
| 20 | 16 | 21 | 22 | 22 | 21 | 21 | 22 | 23 | 25 | 24 | 22 |
| 7 | 8 | 8 | 7 | 9 | 9 | 10 | 9 | 7 | 6 | 6 | 7 |
| 4 | 5 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| 1 | 1 | 2 | 3 | 5 | 6 | 6 | 6 | 4 | 3 | 2 | 1 |
| 167 | 141 | 156 | 151 | 179 | 193 | 210 | 211 | 195 | 171 | 202 | 160 |
| 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.