Climate and monthly weather forecastMount Aetna, MD
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Mount Aetna, Maryland, with an average temperature ranging between max 37°F (2.8°C) and min 23.4°F (-4.8°C). Mount Aetna reaches its lowest average temperatures in January, measuring 37°F (2.8°C) at the peak and 23.4°F (-4.8°C) at the lowest. Weather in January »Weather in February
February, the last month of the winter in Mount Aetna, is also a wintry month, with an average temperature fluctuating between 41.5°F (5.3°C) and 25.9°F (-3.4°C). As Mount Aetna steps into February, the average high-temperature holds at a still cold 41.5°F (5.3°C), hinting at a minor fluctuation from the prior month. Weather in February »Weather in March
March, the first month of the spring in Mount Aetna, is a cool month, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 50.2°F (10.1°C). The shift from February to March sees a slight increase in the average high-temperature, transitioning from an icy 41.5°F (5.3°C) to a fresh 50.2°F (10.1°C). Weather in March »Weather in April
April is a refreshing spring month in Mount Aetna, Maryland, with an average temperature fluctuating between 42.4°F (5.8°C) and 62.6°F (17°C). Mount Aetna sees an increase in average high-temperatures during April, moving from a cool 50.2°F (10.1°C) in March to an enjoyable 62.6°F (17°C). Weather in April »Weather in May
May, the last month of the spring in Mount Aetna, is a pleasant month, with an average temperature ranging between min 52.3°F (11.3°C) and max 72.3°F (22.4°C). In Mount Aetna, the average high-temperature in May rises, from a comfortable 62.6°F (17°C) in April, to an agreeable 72.3°F (22.4°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Mount Aetna, Maryland, with an average temperature varying between 80.4°F (26.9°C) and 59.4°F (15.2°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's agreeable 72.3°F (22.4°C) to a moderately hot 80.4°F (26.9°C). Weather in June »Weather in July
July, like June, in Mount Aetna, Maryland, is a moderately hot summer month, with an average temperature ranging between min 64.2°F (17.9°C) and max 85.6°F (29.8°C). Mount Aetna experiences its highest average temperatures in July, reaching a peak of 85.6°F (29.8°C) and a minimum of 64.2°F (17.9°C). The heat index for July is calculated to be a fiery hot 96.8°F (36°C). Weather in July »Weather in August
August, the last month of the summer in Mount Aetna, is another warm month, with an average temperature fluctuating between 83.3°F (28.5°C) and 62.6°F (17°C). As July turns into August, the average high-temperatures rest at a still warm 83.3°F (28.5°C), showing a minor variation from the prior month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Mount Aetna, Maryland, with an average temperature ranging between max 76.1°F (24.5°C) and min 56.8°F (13.8°C). September ushers in a minor alteration in Mount Aetna's climate, with the average high-temperature moving from August's moderately hot 83.3°F (28.5°C) to a still warm 76.1°F (24.5°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Mount Aetna, Maryland, with an average temperature fluctuating between 46.2°F (7.9°C) and 63.9°F (17.7°C). The commencement of October indicates a shift in the average high-temperature, receding from September's warm 76.1°F (24.5°C) to an enjoyable 63.9°F (17.7°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Mount Aetna, Maryland, with an average temperature fluctuating between 35.2°F (1.8°C) and 51.6°F (10.9°C). A moderate decline in the average high-temperature is seen during November, decreasing from a refreshing 63.9°F (17.7°C) in October to a cool 51.6°F (10.9°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Mount Aetna, Maryland, with temperature in the range of an average high of 42.3°F (5.7°C) and an average low of 30.2°F (-1°C). The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a cool 51.6°F (10.9°C) in November to a cold 42.3°F (5.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Mount Aetna, 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 (37°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Mount Aetna, 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:
29.98"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:
30"Hg - Average pressure in September:
30.06"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
Mount Aetna, MD
- Average wind speed in January:
7.6mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.6mph - Average wind speed in April:
7.5mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.5mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity
Mount Aetna, MD
The months with the highest relative humidity are May, October and December (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall
Mount Aetna, MD
- Average rainfall in January:
1.97" - Average rainfall in February:
2.09" - Average rainfall in March:
2.24" - Average rainfall in April:
2.64" - Average rainfall in May:
3.23" - Average rainfall in June:
2.64"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days
Mount Aetna, MD
- Average rainfall days in January:
9.6 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
12.9 days - Average rainfall days in April:
17.3 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
10.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall
Mount Aetna, MD
The month with the highest snowfall is January (4.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Mount Aetna, MD
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
4.1 days - Average snowfall days in April:
0.3 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:
0.1 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Mount Aetna, MD
- Average daylight in January:
9h and 42min - 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 6min - 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 48min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 30min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 48min
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 42min).
Average sunshine days
Mount Aetna, MD
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
11 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
16.4 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is April (11 days).
Average UV index
Mount Aetna, 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
Mount Aetna, MD
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Mount Aetna, MD
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).





