Climate and monthly weather forecastHarbour Glen, MD
Climate and monthly weather forecast
Weather in January
January, like December, in Harbour Glen, Maryland, is an icy winter month, with an average temperature ranging between max 39.6°F (4.2°C) and min 28.4°F (-2°C). With its high average temperature of 39.6°F (4.2°C) and a low of 28.4°F (-2°C), January is regarded as the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Harbour Glen, Maryland, with an average temperature varying between 43.2°F (6.2°C) and 30.7°F (-0.7°C). February records an average high-temperature of a frosty 43.2°F (6.2°C), indicating a minor variation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Harbour Glen, Maryland, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 50.7°F (10.4°C). The average high-temperature mildly increases in March, edging from a frosty 43.2°F (6.2°C) in February to a cool 50.7°F (10.4°C). Weather in March »Weather in April
April is a comfortable spring month in Harbour Glen, Maryland, with temperature in the range of an average low of 47.5°F (8.6°C) and an average high of 62.8°F (17.1°C). Harbour Glen's April weather brings a rise in high-temperatures, moving from a cool 50.7°F (10.4°C) in March to a comfortable 62.8°F (17.1°C). Weather in April »Weather in May
May, the last month of the spring in Harbour Glen, is a pleasant month, with an average temperature varying between 72.1°F (22.3°C) and 57.2°F (14°C). With the onset of May, Harbour Glen experiences a temperature shift, with the average high-temperature moving from a refreshing 62.8°F (17.1°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »Weather in June
June, the first month of the summer in Harbour Glen, is a moderately hot month, with an average temperature fluctuating between 65.7°F (18.7°C) and 80.2°F (26.8°C). The embrace of June brings a minor uplift in the average high-temperature, shifting from a pleasant 72.1°F (22.3°C) in May to a moderately hot 80.2°F (26.8°C). Weather in June »Weather in July
July, like June, in Harbour Glen, Maryland, is a moderately hot summer month, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 70.7°F (21.5°C). July is the month that records the highest temperatures, with averages ranging from a high of 85.6°F (29.8°C) to a low of 70.7°F (21.5°C). In July, the heat index is estimated at a torrid 95°F (35°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Harbour Glen, Maryland, with an average temperature ranging between min 69.1°F (20.6°C) and max 83.7°F (28.7°C). Harbour Glen measures an average high-temperature of a still warm 83.7°F (28.7°C) in August, nearly consistent with the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Harbour Glen, is still a warm month, with an average temperature varying between 77.4°F (25.2°C) and 63.3°F (17.4°C). September's arrival signals a moderate reduction in the average high-temperature, easing from a warm 83.7°F (28.7°C) in August to a still moderately hot 77.4°F (25.2°C). Weather in September »Weather in October
October, like September, in Harbour Glen, Maryland, is another refreshing autumn month, with an average temperature varying between 52.9°F (11.6°C) and 65.5°F (18.6°C). The move into October indicates a reduction in the average high-temperature, down from September's warm 77.4°F (25.2°C) to a refreshing 65.5°F (18.6°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Harbour Glen, Maryland, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 41.4°F (5.2°C). Arrival of November comes with a reduction in the average high-temperature, falling from an enjoyable 65.5°F (18.6°C) in October to a cool 53.8°F (12.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Harbour Glen, Maryland, with an average temperature varying between 34.7°F (1.5°C) and 45.5°F (7.5°C). The arrival of December suggests a slight decrease in the average high-temperature, moving from a fresh 53.8°F (12.1°C) in November 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
Harbour Glen, MD
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure
Harbour Glen, MD
- Average pressure in January:
30.1"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:
30.03"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
Harbour Glen, MD
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.1mph - Average wind speed in May:
7.5mph - Average wind speed in June:
7mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity
Harbour Glen, MD
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall
Harbour Glen, MD
- Average rainfall in January:
2.01" - Average rainfall in February:
2.36" - Average rainfall in March:
2.48" - Average rainfall in April:
2.6" - Average rainfall in May:
2.87" - Average rainfall in June:
2.6"
- Average rainfall in July:
3.23" - Average rainfall in August:
3.54" - Average rainfall in September:
1.89" - Average rainfall in October:
2.64" - Average rainfall in November:
2.17" - Average rainfall in December:
2.83"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Harbour Glen, MD
- Average rainfall days in January:
9.9 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
15.5 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).
Average snowfall
Harbour Glen, MD
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Harbour Glen, MD
- Average snowfall days in January:
4.4 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
2.4 days - Average snowfall days in April:
0.1 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:
0.5 days - Average snowfall days in December:
2.4 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Harbour Glen, 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 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 18min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 54min - Average sunshine in April:
8h and 48min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 12min
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 6min).
Average sunshine days
Harbour Glen, MD
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
13.9 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
16.9 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index
Harbour Glen, 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, November and December (UV index 2).
Average cloud cover
Harbour Glen, MD
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Harbour Glen, 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).





