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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is a wintry winter month in Twelve Hills, Maryland, with an average temperature ranging between min 26.1°F (-3.3°C) and max 38.1°F (3.4°C). The coldest period is January, when temperatures fluctuate between an average high of 38.1°F (3.4°C) and a low of 26.1°F (-3.3°C). Weather in January »
Weather in February
February, the last month of the winter in Twelve Hills, is another cold month, with an average temperature varying between 42.4°F (5.8°C) and 28.6°F (-1.9°C). Twelve Hills, Maryland, experiences a subtle adjustment in high-temperatures to a still cold 42.4°F (5.8°C) with the onset of February, maintaining near parity with January's 38.1°F (3.4°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Twelve Hills, Maryland, with an average temperature ranging between min 35.8°F (2.1°C) and max 51.1°F (10.6°C). The start of March brings a subtle shift in the average high-temperature, edging up from February's cold 42.4°F (5.8°C) to a cool 51.1°F (10.6°C). Weather in March »
Weather in April
April is an enjoyable spring month in Twelve Hills, Maryland, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 63.1°F (17.3°C). As March transitions into April, Twelve Hills sees a rise in the average high-temperature, moving from a cool 51.1°F (10.6°C) to a comfortable 63.1°F (17.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Twelve Hills, Maryland, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 72.7°F (22.6°C). As April transitions into May, Twelve Hills sees a rise in the average high-temperature, moving from a comfortable 63.1°F (17.3°C) to an agreeable 72.7°F (22.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Twelve Hills, Maryland, with an average temperature fluctuating between 64°F (17.8°C) and 80.6°F (27°C). Twelve Hills observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's agreeable 72.7°F (22.6°C) to a moderately hot 80.6°F (27°C). Weather in June »
Weather in July
July, like June, in Twelve Hills, Maryland, is another warm summer month, with an average temperature ranging between max 85.8°F (29.9°C) and min 68.9°F (20.5°C). In Twelve Hills, the average temperatures in July are the highest, with a peak at 85.8°F (29.9°C) and a low of 68.9°F (20.5°C). July's heat index is estimated at a very hot 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Twelve Hills, Maryland, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 83.8°F (28.8°C). Twelve Hills marks the start of August with an average high-temperature of a still warm 83.8°F (28.8°C), hinting at a slight fluctuation from July's 85.8°F (29.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Twelve Hills, is also a moderately hot month, with an average temperature ranging between min 60.6°F (15.9°C) and max 77°F (25°C). The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 83.8°F (28.8°C) in August to a still moderately hot 77°F (25°C). Weather in September »
Weather in October
October, like September, in Twelve Hills, Maryland, is another comfortable autumn month, with an average temperature ranging between max 65.1°F (18.4°C) and min 50.2°F (10.1°C). In Twelve Hills, entering October brings a temperature decrement, reducing from September's moderately hot 77°F (25°C) to a refreshing 65.1°F (18.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Twelve Hills, is another cool month, with an average temperature ranging between min 38.8°F (3.8°C) and max 53.1°F (11.7°C). A shift in Twelve Hills's weather is observed as October turns into November, with the average high temperature reducing from an enjoyable 65.1°F (18.4°C) to a cool 53.1°F (11.7°C). Weather in November »
Weather in December
December, the first month of the winter in Twelve Hills, is still a chilly month, with an average temperature ranging between max 44.2°F (6.8°C) and min 32.9°F (0.5°C). The average high-temperature shows a slight dip in December, from November's fresh 53.1°F (11.7°C) to a chilly 44.2°F (6.8°C). Weather in December »
Updated: Aug 5, 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
What part of the year is the coldest?
January, marked by an average high-temperature of 38.1°F (3.4°C) and a low-temperature of 26.1°F (-3.3°C), is the coldest month.
What is the driest month?
January is the month with the least rainfall. Rain falls for 8.4 days and accumulates 1.85" (47mm) of precipitation.
How much does it rain?
In Twelve Hills, during the entire year, the rain falls for 159.3 days and collects up to 30.31" (770mm) of precipitation.
When does it snow?
January through March, November and December are months with snowfall.
How much does it snow?
Throughout the year, there are 15.9 snowfall days, and 8.7" (221mm) of snow is accumulated.
What is the month with the least sunshine?
The months with the least sunshine are January and February, with an average of 5.1h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the snowiest month?
March is the month with the most snowfall. Snow falls for 3.3 days and accumulates 3.03" (77mm) of snow.
When is Daylight Saving Time (DST) in Twelve Hills?
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.
What is the least humid month?
The months with the lowest humidity are April and July, with an average relative humidity of 72%.
When it does not snow?
April through October are months without snowfall.
What are the most humid months?
The months with the highest humidity are May and October, with an average relative humidity of 77%.
What are the months with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days in Twelve Hills?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What is the hottest time of year?
With average high and low temperatures of 85.8°F (29.9°C) and 68.9°F (20.5°C) respectively, July is Twelve Hills's warmest month.
What month has the most sunshine in Twelve Hills?
The month with the most sunshine is July, with an average of 10.8h of sunshine.
What is the wettest month?
The month with the most rainfall is August, when the rain falls for 17.1 days and typically aggregates up to 4.06" (103mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Twelve Hills, MD
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure
Twelve Hills, 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:
30.04"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
Twelve Hills, MD
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.3mph
- 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:
7.1mph - Average wind speed in November:
7.5mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Twelve Hills, MD
The months with the highest relative humidity are May and October (77%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall
Twelve Hills, MD
- Average rainfall in January:
1.85" - Average rainfall in February:
1.97" - Average rainfall in March:
2.2" - Average rainfall in April:
2.36" - Average rainfall in May:
3.15" - Average rainfall in June:
2.6"
- Average rainfall in July:
3.31" - Average rainfall in August:
4.06" - Average rainfall in September:
2.17" - Average rainfall in October:
2.24" - Average rainfall in November:
2.17" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days
Twelve Hills, MD
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
13 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
17.1 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.4 days).
Average snowfall
Twelve Hills, MD
The month with the highest snowfall is March (3.03").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Twelve Hills, MD
- Average snowfall days in January:
4.4 days - Average snowfall days in February:
4.6 days - Average snowfall days in March:
3.3 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:
0.5 days - Average snowfall days in December:
2.9 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Twelve Hills, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
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 1min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).
Average sunshine days
Twelve Hills, MD
- Average sunshine days in January:
18.2 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
15.1 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
11 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
12 days - Average sunshine days in September:
14.3 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).
Average UV index
Twelve Hills, 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
Twelve Hills, 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
Twelve Hills, 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).
Twelve Hills, Maryland, USA
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