Climate and monthly weather forecastNorth Potomac, MD
Climate and monthly weather forecast
Weather in January
January, like December, in North Potomac, Maryland, is an icy winter month, with temperature in the range of an average low of 26.4°F (-3.1°C) and an average high of 39.4°F (4.1°C). North Potomac's January weather, with an average high temperature of 39.4°F (4.1°C) and an average low temperature of 26.4°F (-3.1°C), tends to be the coldest of the year. Weather in January »Weather in February
February, the last month of the winter in North Potomac, is a chilly month, with an average temperature fluctuating between 28.8°F (-1.8°C) and 43.9°F (6.6°C). North Potomac transitions into February recording an average high-temperature of a chilly 43.9°F (6.6°C), closely aligning with the preceding month's temperature. Weather in February »Weather in March
March, the first month of the spring in North Potomac, is a fresh month, with an average temperature varying between 52.3°F (11.3°C) and 36.1°F (2.3°C). The transition from February to March brings a subtle temperature rise, with average high-temperatures increasing from a frosty 43.9°F (6.6°C) to a cool 52.3°F (11.3°C). Weather in March »Weather in April
April is a comfortable spring month in North Potomac, Maryland, with an average temperature varying between 46°F (7.8°C) and 64.9°F (18.3°C). In April, the average high-temperature increases from a fresh 52.3°F (11.3°C) in March to an enjoyable 64.9°F (18.3°C). Weather in April »Weather in May
May, the last month of the spring in North Potomac, is a warm month, with temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 74.3°F (23.5°C). North Potomac sees a rise in temperature during May, with average high-temperatures transitioning from a comfortable 64.9°F (18.3°C) in April to a moderately hot 74.3°F (23.5°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in North Potomac, Maryland, with an average temperature ranging between max 82.2°F (27.9°C) and min 63.5°F (17.5°C). The arrival of June witnesses a small shift in the average high-temperature, moving from 74.3°F (23.5°C) in May to a still moderately hot 82.2°F (27.9°C). Weather in June »Weather in July
July in North Potomac, Maryland, is a tropical summer month, with an average temperature varying between 68.5°F (20.3°C) and 87.4°F (30.8°C). With an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 68.5°F (20.3°C), July is the warmest month. Throughout July, the heat index is evaluated at a torrid 98.6°F (37°C). Weather in July »Weather in August
August, the last month of the summer in North Potomac, is also a moderately hot month, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 85.5°F (29.7°C). The advent of August reveals an average high-temperature of a moderately hot 85.5°F (29.7°C), showing minimal difference from the prior month. Weather in August »Weather in September
September, the first month of the autumn in North Potomac, is still a warm month, with an average temperature varying between 78.3°F (25.7°C) and 60.8°F (16°C). September's onset introduces a mild reduction in the average high-temperature, from a moderately hot 85.5°F (29.7°C) in August to a still warm 78.3°F (25.7°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in North Potomac, Maryland, with temperature in the range of an average low of 49.8°F (9.9°C) and an average high of 65.8°F (18.8°C). October ushers in a slight temperature change, with average high-temperatures reducing from September's moderately hot 78.3°F (25.7°C) to a refreshing 65.8°F (18.8°C). Weather in October »Weather in November
November, the last month of the autumn in North Potomac, is also a fresh month, with an average temperature varying between 38.7°F (3.7°C) and 53.4°F (11.9°C). The average high-temperature decreases in November, shifting from an enjoyable 65.8°F (18.8°C) in October to a cool 53.4°F (11.9°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in North Potomac, Maryland, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 32.9°F (0.5°C). December brings a slight decrease in the average high-temperature, shifting from a fresh 53.4°F (11.9°C) in November to a chilly 45.5°F (7.5°C). Weather in December »Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In North Potomac, January is the month with the lowest recorded average temperatures, measuring a high of 39.4°F (4.1°C) and a low of 26.4°F (-3.1°C).
Throughout the year, there are 156.5 rainfall days, and 30.71" (780mm) of precipitation is accumulated.
January through April, November and December are months with snowfall.
Throughout the year, there are 15.5 snowfall days, and 10.24" (260mm) of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the least rainfall is February, when the rain falls for 9.3 days and typically collects 1.93" (49mm) of precipitation.
February has the least sunshine of the year, with an average of 5h of sunshine.
The month with the most snowfall is March, when snow falls for 3.5 days and typically aggregates up to 3.03" (77mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
In North Potomac, snow does not fall in May through October.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
June has the longest days of the year, with an average of 14h and 54min of daylight.
The month of July, characterized by an average high of 87.4°F (30.8°C) and a low of 68.5°F (20.3°C), is recognized as the warmest.
The least humid month is July, with an average relative humidity of 69%.
With an average of 10.8h of sunshine, July has the most sunshine of the year.
August is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.86" (98mm) of precipitation.
October and December, with an average relative humidity of 76%, are most humid months.
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
North Potomac, MD
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.4°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure
North Potomac, MD
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
North Potomac, MD
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.7mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.8mph - Average wind speed in December:
6.9mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity
North Potomac, MD
The months with the highest relative humidity are October and December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall
North Potomac, MD
- Average rainfall in January:
1.97" - Average rainfall in February:
1.93" - Average rainfall in March:
2.28" - Average rainfall in April:
2.56" - Average rainfall in May:
3.19" - Average rainfall in June:
2.6"
- Average rainfall in July:
3.15" - Average rainfall in August:
3.86" - Average rainfall in September:
2.13" - Average rainfall in October:
2.4" - Average rainfall in November:
2.28" - Average rainfall in December:
2.36"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days
North Potomac, MD
- Average rainfall days in January:
8.1 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
12.1 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is January (8.1 days).
Average snowfall
North Potomac, MD
The month with the highest snowfall is March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
North Potomac, MD
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
3.5 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
North Potomac, MD
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 54min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days
North Potomac, MD
- Average sunshine days in January:
19.2 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
12.6 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.7 days).
Average UV index
North Potomac, MD
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
North Potomac, MD
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
North Potomac, MD
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
