Climate and monthly weather forecastGlen Arm, MD
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Glen Arm, Maryland, with an average temperature ranging between min 25.3°F (-3.7°C) and max 37.6°F (3.1°C). Glen Arm's January weather reaches an average high of 37.6°F (3.1°C) and an average low of 25.3°F (-3.7°C), making it the coldest month. Weather in January »Weather in February
February, the last month of the winter in Glen Arm, is also an icy month, with an average temperature fluctuating between 41.5°F (5.3°C) and 27.5°F (-2.5°C). With February's advent, Glen Arm sees an average high-temperature of a still icy 41.5°F (5.3°C), subtly shifted from January's 37.6°F (3.1°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Glen Arm, Maryland, with an average temperature ranging between max 49.6°F (9.8°C) and min 34.7°F (1.5°C). As Glen Arm transitions into March, a marginal rise in the average high-temperature is observed, moving from an icy 41.5°F (5.3°C) in February to a frosty 49.6°F (9.8°C). Weather in March »Weather in April
April is an enjoyable spring month in Glen Arm, Maryland, with an average temperature fluctuating between 44.8°F (7.1°C) and 61.9°F (16.6°C). Glen Arm, Maryland, in April shows a temperature shift, moving from an average high of a chilly 49.6°F (9.8°C) in March to a refreshing 61.9°F (16.6°C). Weather in April »Weather in May
May, the last month of the spring in Glen Arm, is a pleasant month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 71.4°F (21.9°C). In May, the average high-temperature increases from an enjoyable 61.9°F (16.6°C) in April to an agreeable 71.4°F (21.9°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Glen Arm, Maryland, with temperature in the range of an average low of 62.1°F (16.7°C) and an average high of 79.3°F (26.3°C). Glen Arm observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's agreeable 71.4°F (21.9°C) to a moderately hot 79.3°F (26.3°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Glen Arm, Maryland, with an average temperature fluctuating between 67.6°F (19.8°C) and 84.6°F (29.2°C). Glen Arm's July weather reaches an average high of 84.6°F (29.2°C) and an average low of 67.6°F (19.8°C), making it the warmest month. For July, the heat index is appraised at a hot 93.2°F (34°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Glen Arm, Maryland, with an average temperature ranging between max 82.2°F (27.9°C) and min 65.7°F (18.7°C). The initiation of August records an average high-temperature of a still warm 82.2°F (27.9°C), displaying a near consistency with the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Glen Arm, Maryland, with temperature in the range of an average high of 75.9°F (24.4°C) and an average low of 59.4°F (15.2°C). September's arrival subtly correlates with a reduction in the average high-temperature, down from 82.2°F (27.9°C) in August to a still warm 75.9°F (24.4°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Glen Arm, Maryland, with an average temperature ranging between min 49.8°F (9.9°C) and max 64.8°F (18.2°C). October's arrival comes with a decrease in the average high-temperature, moving from a warm 75.9°F (24.4°C) in September to a comfortable 64.8°F (18.2°C). Weather in October »Weather in November
November, the last month of the autumn in Glen Arm, is another cool month, with an average temperature varying between 38.3°F (3.5°C) and 52.9°F (11.6°C). The average high-temperature decreases in November, shifting from an enjoyable 64.8°F (18.2°C) in October to a fresh 52.9°F (11.6°C). Weather in November »Weather in December
December, the first month of the winter in Glen Arm, is also a frosty month, with an average temperature ranging between max 43.7°F (6.5°C) and min 32.2°F (0.1°C). With the onset of December, Glen Arm experiences a modest temperature adjustment, with the average high-temperature receding from a cool 52.9°F (11.6°C) in November to a chilly 43.7°F (6.5°C). Weather in December »Updated: Jul 19, 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
Temperature records mark January as the coldest month, with highs averaging 37.6°F (3.1°C) and lows at 25.3°F (-3.7°C).
Throughout the year, there are 155.7 rainfall days, and 32.68" (830mm) of precipitation is accumulated.
Months with snowfall in Glen Arm are January through May, November and December.
In Glen Arm, Maryland, during the entire year, snow falls for 19.9 days and aggregates up to 9.72" (247mm) of snow.
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 9.1 days and typically collects 2.09" (53mm) of precipitation.
The month with the least sunshine is February, with an average of 4.8h of sunshine.
The month with the most snowfall is March, when snow falls for 4.2 days and typically aggregates up to 2.87" (73mm) 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.
With an average relative humidity of 74%, April is the least humid month in Glen Arm.
The most humid month is May, with an average relative humidity of 80%.
The months with the highest UV index are May through August, with an average maximum UV index of 6.
In Glen Arm, snow does not fall in June through October.
June has the longest days of the year, with an average of 14h and 54min of daylight.
July, with average temperatures reaching a high of 84.6°F (29.2°C) and a low of 67.6°F (19.8°C), is the warmest month in Glen Arm.
July has the most sunshine of the year, with an average of 10.6h of sunshine.
August is the month with the most rainfall. Rain falls for 15.9 days and accumulates 4.09" (104mm) of precipitation.
With an average of 9h and 24min of daylight, December has the shortest days of the year in Glen Arm, Maryland.
Average temperature
Glen Arm, MD
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37.6°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure
Glen Arm, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.07"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:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Glen Arm, MD
- Average wind speed in January:
8.9mph - Average wind speed in February:
9mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.5mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Glen Arm, MD
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Glen Arm, MD
- Average rainfall in January:
2.17" - Average rainfall in February:
2.09" - Average rainfall in March:
2.44" - Average rainfall in April:
2.48" - Average rainfall in May:
2.99" - Average rainfall in June:
2.68"
- Average rainfall in July:
3.58" - Average rainfall in August:
4.09" - Average rainfall in September:
2.36" - Average rainfall in October:
2.6" - Average rainfall in November:
2.44" - Average rainfall in December:
2.76"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days
Glen Arm, MD
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
9.7 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
Glen Arm, MD
The month with the highest snowfall is March (2.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Glen Arm, MD
- Average snowfall days in January:
5.6 days - Average snowfall days in February:
5.6 days - Average snowfall days in March:
4.2 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.2 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:
0.1 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
3.4 days
The months with the highest number of snowfall days are January and February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Glen Arm, MD
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - 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 24min
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 24min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 24min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Glen Arm, MD
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
12.5 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index
Glen Arm, 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
Glen Arm, MD
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Glen Arm, 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).
