WeatherWX.com
Potomac Falls Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 39°F Lo 26°F | Hi 44°F Lo 29°F | Hi 53°F Lo 36°F | Hi 64°F Lo 46°F | Hi 75°F Lo 56°F | Hi 84°F Lo 63°F | Hi 89°F Lo 68°F | Hi 87°F Lo 67°F | Hi 79°F Lo 61°F | Hi 67°F Lo 51°F | Hi 54°F Lo 39°F | Hi 45°F Lo 33°F |
| 7 mph | 7 mph | 8 mph | 8 mph | 6 mph | 6 mph | 5 mph | 5 mph | 5 mph | 6 mph | 7 mph | 7 mph |
| 4.1 in | 4.7 in | 4.9 in | 4.8 in | 6.2 in | 5.1 in | 5.6 in | 5.9 in | 4.8 in | 5.6 in | 4 in | 5.3 in |
| 73% | 75% | 73% | 71% | 75% | 71% | 69% | 71% | 74% | 75% | 73% | 76% |
| 45% | 46% | 45% | 43% | 43% | 32% | 30% | 32% | 36% | 38% | 35% | 45% |
| 30.1 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 18 | 15 | 19 | 22 | 22 | 24 | 24 | 24 | 24 | 25 | 24 | 21 |
| 6 | 7 | 8 | 7 | 9 | 6 | 7 | 7 | 6 | 6 | 5 | 7 |
| 7 | 7 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
| 3 | 3 | 2 | 3 | 6 | 4 | 4 | 3 | 5 | 3 | 3 | 4 |
| 2 | 2 | 3 | 4 | 6 | 7 | 6 | 6 | 5 | 4 | 2 | 2 |
| 265 | 240 | 270 | 273 | 282 | 318 | 347 | 339 | 299 | 290 | 289 | 272 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 4°C Lo -3°C | Hi 7°C Lo -2°C | Hi 12°C Lo 2°C | Hi 18°C Lo 8°C | Hi 24°C Lo 13°C | Hi 29°C Lo 17°C | Hi 32°C Lo 20°C | Hi 30°C Lo 20°C | Hi 26°C Lo 16°C | Hi 20°C Lo 10°C | Hi 12°C Lo 4°C | Hi 7°C Lo 1°C |
| 12 km/h | 12 km/h | 12 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 |
| 104 mm | 119 mm | 124 mm | 121 mm | 158 mm | 130 mm | 143 mm | 151 mm | 122 mm | 142 mm | 103 mm | 134 mm |
| 73% | 75% | 73% | 71% | 75% | 71% | 69% | 71% | 74% | 75% | 73% | 76% |
| 45% | 46% | 45% | 43% | 43% | 32% | 30% | 32% | 36% | 38% | 35% | 45% |
| 1020 mb | 1019 mb | 1019 mb | 1016 mb | 1017 mb | 1014 mb | 1015 mb | 1016 mb | 1018 mb | 1017 mb | 1021 mb | 1020 mb |
| 18 | 15 | 19 | 22 | 22 | 24 | 24 | 24 | 24 | 25 | 24 | 21 |
| 6 | 7 | 8 | 7 | 9 | 6 | 7 | 7 | 6 | 6 | 5 | 7 |
| 7 | 7 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
| 3 | 3 | 2 | 3 | 6 | 4 | 4 | 3 | 5 | 3 | 3 | 4 |
| 2 | 2 | 3 | 4 | 6 | 7 | 6 | 6 | 5 | 4 | 2 | 2 |
| 265 | 240 | 270 | 273 | 282 | 318 | 347 | 339 | 299 | 290 | 289 | 272 |
| 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.
