Weather World
North Potomac Junior High School Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 37°F Lo 23°F | Hi 41°F Lo 26°F | Hi 51°F Lo 33°F | Hi 62°F Lo 42°F | Hi 71°F Lo 53°F | Hi 80°F Lo 60°F | Hi 86°F Lo 66°F | Hi 83°F Lo 64°F | Hi 76°F Lo 58°F | Hi 64°F Lo 47°F | Hi 51°F Lo 35°F | Hi 42°F Lo 29°F |
| 8 mph | 8 mph | 8 mph | 8 mph | 6 mph | 6 mph | 5 mph | 5 mph | 5 mph | 6 mph | 7 mph | 7 mph |
| 3.2 in | 3.7 in | 3.6 in | 4.7 in | 5 in | 4.6 in | 4.3 in | 3.4 in | 5.3 in | 4.6 in | 3.4 in | 4.4 in |
| 76% | 78% | 75% | 74% | 79% | 76% | 74% | 75% | 76% | 77% | 75% | 78% |
| 49% | 50% | 47% | 47% | 47% | 36% | 34% | 36% | 38% | 40% | 38% | 49% |
| 30.1 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 29.9 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in | 30.1 in | 30.1 in |
| 20 | 16 | 22 | 22 | 21 | 21 | 22 | 23 | 23 | 25 | 25 | 21 |
| 7 | 7 | 7 | 8 | 10 | 9 | 9 | 8 | 7 | 6 | 5 | 7 |
| 4 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 2 | 3 | 4 | 5 | 6 | 6 | 5 | 4 | 3 | 2 | 2 |
| 148 | 135 | 155 | 158 | 172 | 206 | 229 | 221 | 204 | 192 | 195 | 152 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 3°C Lo -5°C | Hi 5°C Lo -4°C | Hi 10°C Lo 1°C | Hi 16°C Lo 6°C | Hi 22°C Lo 11°C | Hi 27°C Lo 16°C | Hi 30°C Lo 19°C | Hi 28°C Lo 18°C | Hi 25°C Lo 14°C | Hi 18°C Lo 8°C | Hi 11°C Lo 2°C | Hi 6°C Lo -2°C |
| 12 km/h | 12 km/h | 13 km/h | 12 km/h | 10 km/h | 9 km/h | 8 km/h | 8 km/h | 9 km/h | 10 km/h | 11 km/h | 11 km/h |
| 81 mm | 94 mm | 91 mm | 118 mm | 128 mm | 116 mm | 110 mm | 86 mm | 134 mm | 117 mm | 86 mm | 112 mm |
| 76% | 78% | 75% | 74% | 79% | 76% | 74% | 75% | 76% | 77% | 75% | 78% |
| 49% | 50% | 47% | 47% | 47% | 36% | 34% | 36% | 38% | 40% | 38% | 49% |
| 1019 mb | 1019 mb | 1018 mb | 1016 mb | 1016 mb | 1014 mb | 1015 mb | 1016 mb | 1018 mb | 1018 mb | 1020 mb | 1020 mb |
| 20 | 16 | 22 | 22 | 21 | 21 | 22 | 23 | 23 | 25 | 25 | 21 |
| 7 | 7 | 7 | 8 | 10 | 9 | 9 | 8 | 7 | 6 | 5 | 7 |
| 4 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 2 | 3 | 4 | 5 | 6 | 6 | 5 | 4 | 3 | 2 | 2 |
| 148 | 135 | 155 | 158 | 172 | 206 | 229 | 221 | 204 | 192 | 195 | 152 |
| 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.