North Potomac, Maryland Climate
United States
Pop. 24,410 Elev. 82 m / 269 ft
TZ: America/New_York (UTC-4) ·
North Potomac has warm summers with average highs of 89°F (32°C) in July, and cold winters averaging 25°F (-4°C) in January. Humidity pushes the summer feels-like temperature to 105°F (41°C), while wind chill can drive winter lows to 18°F (-8°C). Rain falls on about 61 days per year (39.5 in / 1004 mm total), with snow on 5 days and 25 in (636 mm) of annual accumulation. The city averages 126 sunny days per year and around 42 thunderstorm days. Ocean water temperatures reach 86°F (30°C) in summer.
| Temperature | 89°F (31°C) high | 25°F (-4°C) low |
| Feels like | 105°F (40°C) high | 18°F (-8°C) low |
| Rain | 61 days | 39.5 in (1004 mm) /yr |
| Snow | 5 days | 25.0 in (636 mm) /yr |
| Sky | 126 sunny | 42 stormy |
| Wind | 2.4 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Apr, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
41
Jan 53
Feb 47
Mar 68
Apr 74
May 59
Jun 62
Jul 53
Aug 60
Sep 46
Oct 49
Nov 59
Dec Humidity (%)
55
Jan 57
Feb 50
Mar 56
Apr 65
May 69
Jun 75
Jul 67
Aug 70
Sep 62
Oct 55
Nov 60
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 14 mi Washington Dulles International Airport (IAD)
Ski resort 31 mi Snow Riders
National park 6 mi Great Falls Park
Mountain peak
(4,928 ft) 283 mi Third Peak
Hospital 4 mi Adventist HealthCare Physical Health & Rehabilitation
Hiking trail 1 mi Muddy Branch Greenway Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 38°F 3°C | 25°F -4°C | 0.7 in 18 mm | 12.9 in327 mm | 17 |
| February | 46°F 8°C | 31°F -1°C | 2.7 in 69 mm | 7.4 in187 mm | 11 |
| March | 62°F 17°C | 41°F 5°C | 1.9 in 47 mm | — | 12 |
| April | 69°F 21°C | 51°F 10°C | 3.1 in 80 mm | — | 5 |
| May | 74°F 24°C | 58°F 15°C | 7.7 in 194 mm | — | 3 |
| June | 86°F 30°C | 67°F 20°C | 5.6 in 141 mm | — | 11 |
| July | 89°F 31°C | 73°F 23°C | 8.7 in 221 mm | — | 8 |
| August | 82°F 28°C | 65°F 18°C | 0.9 in 23 mm | — | 13 |
| September | 80°F 26°C | 62°F 16°C | 3.1 in 80 mm | — | 10 |
| October | 68°F 20°C | 49°F 10°C | 2.1 in 53 mm | — | 13 |
| November | 57°F 14°C | 40°F 5°C | 1.5 in 38 mm | 0.1 in2 mm | 14 |
| December | 43°F 6°C | 29°F -2°C | 1.5 in 39 mm | 4.7 in119 mm | 9 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 17 | 0 |
| February | 11 | 1 |
| March | 12 | 1 |
| April | 5 | 3 |
| May | 3 | 9 |
| June | 11 | 10 |
| July | 8 | 11 |
| August | 13 | 1 |
| September | 10 | 5 |
| October | 13 | 1 |
| November | 14 | 0 |
| December | 9 | 0 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 43°F 6°C | 33°F 1°C |
| February | 40°F 4°C | 33°F 1°C |
| March | 54°F 12°C | 42°F 6°C |
| April | 62°F 17°C | 53°F 12°C |
| May | 71°F 22°C | 64°F 18°C |
| June | 83°F 29°C | 75°F 24°C |
| July | 86°F 30°C | 83°F 28°C |
| August | 84°F 29°C | 75°F 24°C |
| September | 76°F 25°C | 69°F 20°C |
| October | 73°F 23°C | 60°F 16°C |
| November | 58°F 14°C | 48°F 9°C |
| December | 46°F 8°C | 36°F 2°C |