Climate and monthly weather forecastBrentwood, MD
Climate and monthly weather forecast
Weather in January
January, like December, in Brentwood, Maryland, is an icy winter month, with an average temperature ranging between min 27.7°F (-2.4°C) and max 39.9°F (4.4°C). In Brentwood, January is the coldest month, with temperatures averaging a high of 39.9°F (4.4°C) and a low of 27.7°F (-2.4°C). Weather in January »Weather in February
February, the last month of the winter in Brentwood, is a chilly month, with an average temperature varying between 44.2°F (6.8°C) and 30°F (-1.1°C). February's arrival shows an average high-temperature of a frosty 44.2°F (6.8°C), hardly different from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Brentwood, Maryland, with an average temperature ranging between min 37.4°F (3°C) and max 52.3°F (11.3°C). March signifies a subtle uplift in the average high-temperature, adjusting from a frosty 44.2°F (6.8°C) in February to a cool 52.3°F (11.3°C). Weather in March »Weather in April
April is a refreshing spring month in Brentwood, Maryland, with an average temperature varying between 47.3°F (8.5°C) and 64.8°F (18.2°C). April brings a temperature increase, with average high-temperatures moving from March's fresh 52.3°F (11.3°C) to a refreshing 64.8°F (18.2°C). Weather in April »Weather in May
May, the last month of the spring in Brentwood, is a moderately hot month, with an average temperature varying between 57°F (13.9°C) and 73.9°F (23.3°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's comfortable 64.8°F (18.2°C) to a warm 73.9°F (23.3°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Brentwood, Maryland, with an average temperature fluctuating between 81.9°F (27.7°C) and 64.6°F (18.1°C). Brentwood experiences a minor temperature shift with the start of June, with average high-temperatures moving from a moderately hot 73.9°F (23.3°C) in May to a still warm 81.9°F (27.7°C). Weather in June »Weather in July
July is a tropical summer month in Brentwood, Maryland, with temperature in the range of an average low of 70°F (21.1°C) and an average high of 87.4°F (30.8°C). In Brentwood, July is identified by the highest average temperatures, reaching a peak of 87.4°F (30.8°C) and a low of 70°F (21.1°C). July's average heat index is calculated to be a sweltering 98.6°F (37°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Brentwood, Maryland, with an average temperature varying between 68.7°F (20.4°C) and 85.1°F (29.5°C). The average high-temperature during August registers at a moderately hot 85.1°F (29.5°C), closely corresponding to the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Brentwood, Maryland, with an average temperature varying between 62.2°F (16.8°C) and 78.1°F (25.6°C). Transition into September subtly marks a drop in the average high-temperature, moderately moving from a warm 85.1°F (29.5°C) in August to a still moderately hot 78.1°F (25.6°C). Weather in September »Weather in October
October, like September, in Brentwood, Maryland, is another refreshing autumn month, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 66.2°F (19°C). In the transition to October, Brentwood observes a drop in the average high-temperature, moving from a warm 78.1°F (25.6°C) in September to an enjoyable 66.2°F (19°C). Weather in October »Weather in November
November, the last month of the autumn in Brentwood, is another cool month, with an average temperature fluctuating between 40.1°F (4.5°C) and 54.1°F (12.3°C). With the onset of November, Brentwood experiences a modest temperature adjustment, with the average high-temperature receding from an enjoyable 66.2°F (19°C) in October to a cool 54.1°F (12.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Brentwood, Maryland, with an average temperature varying between 34.3°F (1.3°C) and 45.5°F (7.5°C). As November makes way for December, Brentwood's average high-temperature eases from a fresh 54.1°F (12.3°C) to a frosty 45.5°F (7.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Brentwood, 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 (39.9°F).
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure
Brentwood, 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:
29.94"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 (29.94"Hg).
Average wind speed
Brentwood, MD
- Average wind speed in January:
7.9mph - Average wind speed in February:
8mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.2mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
6.1mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.2mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Brentwood, MD
The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall
Brentwood, MD
- Average rainfall in January:
2.01" - Average rainfall in February:
2.09" - Average rainfall in March:
2.36" - Average rainfall in April:
2.72" - Average rainfall in May:
2.99" - Average rainfall in June:
2.8"
- Average rainfall in July:
3.11" - Average rainfall in August:
3.58" - Average rainfall in September:
2.09" - Average rainfall in October:
2.64" - Average rainfall in November:
2.17" - Average rainfall in December:
2.6"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days
Brentwood, MD
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
10 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
15.9 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
9 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).
Average snowfall
Brentwood, MD
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days
Brentwood, MD
- Average snowfall days in January:
4.1 days - Average snowfall days in February:
3.9 days - Average snowfall days in March:
2.7 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:
0.2 days - Average snowfall days in December:
2.4 days
The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Brentwood, 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 12min - 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 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - 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 48min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days
Brentwood, MD
- Average sunshine days in January:
18.6 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
17.4 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
18.1 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Brentwood, 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 and December (UV index 2).
Average cloud cover
Brentwood, MD
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility
Brentwood, MD
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





