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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 another cold winter month in Twin Knolls, Maryland, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 37.4°F (3°C). The lowest temperatures are recorded in January, with averages reaching a high of 37.4°F (3°C) and a low of 24.8°F (-4°C). Weather in January »
Weather in February
February, the last month of the winter in Twin Knolls, is also a wintry month, with an average temperature ranging between max 41.4°F (5.2°C) and min 27°F (-2.8°C). With the onset of February, a modest change to a still icy 41.4°F (5.2°C) from January's 37.4°F (3°C) is noted in high-temperature. Weather in February »
Weather in March
March, the first month of the spring in Twin Knolls, is a frosty month, with an average temperature varying between 49.8°F (9.9°C) and 34°F (1.1°C). March marks a minor ascent in the average high-temperature, adjusting from February's wintry 41.4°F (5.2°C) to a chilly 49.8°F (9.9°C). Weather in March »
Weather in April
April in Twin Knolls, Maryland, is an enjoyable spring month, with an average temperature varying between 62.1°F (16.7°C) and 43.9°F (6.6°C). The shift into April is accompanied by a temperature increase, with the average high-temperature rising from a chilly 49.8°F (9.9°C) in March to an enjoyable 62.1°F (16.7°C). Weather in April »
Weather in May
May, the last month of the spring in Twin Knolls, is a pleasant month, with an average temperature fluctuating between 71.4°F (21.9°C) and 54.1°F (12.3°C). The onset of May brings a rise in the average high-temperature, elevating from a comfortable 62.1°F (16.7°C) in April to a pleasant 71.4°F (21.9°C). Weather in May »
Weather in June
June, the first month of the summer in Twin Knolls, is a warm month, with an average temperature ranging between max 79°F (26.1°C) and min 61.7°F (16.5°C). June introduces a marginal temperature uplift, with average high-temperatures adjusting from May's agreeable 71.4°F (21.9°C) to a warm 79°F (26.1°C). Weather in June »
Weather in July
July, like June, in Twin Knolls, Maryland, is a moderately hot summer month, with an average temperature fluctuating between 84.2°F (29°C) and 66.7°F (19.3°C). Temperature readings reach their annual highs in July, averaging 84.2°F (29°C) and a minimum average of 66.7°F (19.3°C). The heat index for July is estimated 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 Twin Knolls, Maryland, with an average temperature ranging between min 64.9°F (18.3°C) and max 82.4°F (28°C). The beginning of August records an average high-temperature of a still moderately hot 82.4°F (28°C), almost echoing the conditions of the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Twin Knolls, Maryland, with an average temperature fluctuating between 75.9°F (24.4°C) and 58.8°F (14.9°C). With the onset of September, Twin Knolls's average high-temperature slightly adjusts, moderately receding from August's warm 82.4°F (28°C) to a still moderately hot 75.9°F (24.4°C). Weather in September »
Weather in October
October, like September, in Twin Knolls, Maryland, is another refreshing autumn month, with an average temperature varying between 64.2°F (17.9°C) and 48.4°F (9.1°C). As October begins, there is a decrease in the average high-temperature, falling from a moderately hot 75.9°F (24.4°C) in September to an enjoyable 64.2°F (17.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Twin Knolls, is also a fresh month, with temperature in the range of an average high of 51.8°F (11°C) and an average low of 37.2°F (2.9°C). Setting in of November comes with a decrease in the average high-temperature, moving from an enjoyable 64.2°F (17.9°C) in October to a cool 51.8°F (11°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Twin Knolls, Maryland, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 31.3°F (-0.4°C). December brings a slight decrease in temperature, down from a fresh 51.8°F (11°C) in November to a frosty 43.3°F (6.3°C). Weather in December »
Updated: Jun 4, 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 is the coldest time of year?
Temperature readings reach their annual highs in January, averaging 37.4°F (3°C) and a minimum average of 24.8°F (-4°C).
What is the least humid month?
The months with the lowest humidity are January, March, April, July and November, with an average relative humidity of 75%.
How much does it rain?
In Twin Knolls, Maryland, during the entire year, the rain falls for 158.9 days and collects up to 31.38" (797mm) of precipitation.
When does it snow?
Months with snowfall are January through April, October through December.
How much does it snow?
In Twin Knolls, during the entire year, snow falls for 21.2 days and aggregates up to 10.55" (268mm) of snow.
What is the month with 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 driest month?
February is the month with the least rainfall. Rain falls for 8.9 days and accumulates 1.89" (48mm) of precipitation.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.7h of sunshine.
When does it snow the most?
The month with the most snowfall is March, when snow falls for 4.1 days and typically aggregates up to 3.46" (88mm) of snow.
When is Daylight Saving Time (DST)?
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 most humid month?
May is the most humid month, with an average relative humidity of 80%.
When it does not snow?
May through September are months without snowfall.
When is 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?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What are the warmest months?
The warmest month is July, with an average high-temperature of 84.2°F (29°C) and an average low-temperature of 66.7°F (19.3°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.6h of sunshine.
What is the rainiest month?
August is the month with the most rainfall. Rain falls for 16.5 days and accumulates 3.86" (98mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Twin Knolls, MD
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure
Twin Knolls, 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:
30.06"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 (29.94"Hg).
Average wind speed
Twin Knolls, MD
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.6mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.3mph - Average wind speed in September:
6mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.7mph - Average wind speed in December:
8.1mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity
Twin Knolls, MD
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).
Average rainfall
Twin Knolls, MD
- Average rainfall in January:
2.09" - Average rainfall in February:
1.89" - Average rainfall in March:
2.28" - Average rainfall in April:
2.56" - Average rainfall in May:
3.19" - Average rainfall in June:
2.56"
- Average rainfall in July:
3.03" - Average rainfall in August:
3.86" - Average rainfall in September:
2.24" - Average rainfall in October:
2.68" - Average rainfall in November:
2.56" - Average rainfall in December:
2.44"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days
Twin Knolls, MD
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
13 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
16.5 days - Average rainfall days in September:
13.7 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
Twin Knolls, MD
The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Twin Knolls, MD
- Average snowfall days in January:
6.6 days - Average snowfall days in February:
5.7 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:
0.5 days - Average snowfall days in December:
3.9 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Twin Knolls, 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 2min
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 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
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
Twin Knolls, MD
- Average sunshine days in January:
17.4 days - Average sunshine days in February:
14.2 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
13.2 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
16.1 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).
Average UV index
Twin Knolls, 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
Twin Knolls, 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
Twin Knolls, MD
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Twin Knolls, Maryland, USA
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