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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 an icy winter month in Shannon Forest, Maryland, with an average temperature varying between 38.8°F (3.8°C) and 27.7°F (-2.4°C). Temperature records mark January as the coldest month, with highs averaging 38.8°F (3.8°C) and lows at 27.7°F (-2.4°C). Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Shannon Forest, Maryland, with an average temperature ranging between min 30°F (-1.1°C) and max 43°F (6.1°C). Shannon Forest observes a minor difference in average high-temperatures between January's 38.8°F (3.8°C) and February's 43°F (6.1°C). Weather in February »
Weather in March
March, the first month of the spring in Shannon Forest, is a fresh month, with an average temperature ranging between min 37°F (2.8°C) and max 50.9°F (10.5°C). A gentle upsurge in temperatures occurs as February gives way to March, with average highs shifting from a chilly 43°F (6.1°C) to a fresh 50.9°F (10.5°C). Weather in March »
Weather in April
April is an enjoyable spring month in Shannon Forest, Maryland, with an average temperature varying between 63.1°F (17.3°C) and 46.9°F (8.3°C). An escalation in the average high-temperature is seen with the onset of April, moving from a fresh 50.9°F (10.5°C) in March to an enjoyable 63.1°F (17.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Shannon Forest, Maryland, with an average temperature ranging between min 56.8°F (13.8°C) and max 72.3°F (22.4°C). Shannon Forest in May shows a temperature shift, moving from an average high of a refreshing 63.1°F (17.3°C) in April to a pleasant 72.3°F (22.4°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Shannon Forest, Maryland, with an average temperature ranging between max 80.8°F (27.1°C) and min 64.8°F (18.2°C). The commencement of June sees a minor shift in the average high-temperature, moving from a pleasant 72.3°F (22.4°C) in May to a warm 80.8°F (27.1°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Shannon Forest, Maryland, with temperature in the range of an average low of 70.3°F (21.3°C) and an average high of 85.5°F (29.7°C). Shannon Forest witnesses the warmest weather in July, with temperatures averaging a high of 85.5°F (29.7°C) and a low of 70.3°F (21.3°C). July's heat index is computed to be a torrid 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Shannon Forest, Maryland, with an average temperature ranging between min 68.9°F (20.5°C) and max 83.8°F (28.8°C). July's transformation into August witnesses an average high-temperature of a still warm 83.8°F (28.8°C), noting a minor change from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Shannon Forest, is still a warm month, with an average temperature ranging between max 77.2°F (25.1°C) and min 62.4°F (16.9°C). With the onset of September, the average high-temperature subtly recedes from August's 83.8°F (28.8°C) to a still moderately hot 77.2°F (25.1°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Shannon Forest, Maryland, with an average temperature fluctuating between 52.3°F (11.3°C) and 65.3°F (18.5°C). The transition into October indicates a reduction in the average high-temperature, down to a refreshing 65.3°F (18.5°C) from September's moderately hot 77.2°F (25.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Shannon Forest, is another cool month, with temperature in the range of an average high of 53.6°F (12°C) and an average low of 40.6°F (4.8°C). The beginning of November marks a decrease in the average high-temperature, transitioning from a refreshing 65.3°F (18.5°C) in October to a fresh 53.6°F (12°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Shannon Forest, Maryland, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 34.5°F (1.4°C). With the onset of December, the average high-temperature subtly recedes from November's fresh 53.6°F (12°C) to a frosty 45.5°F (7.5°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 time of the year is the coldest?
January, with its average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 27.7°F (-2.4°C), holds the record as the coldest month.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 8.4 days and typically collects 1.81" (46mm) of precipitation.
How many days does it rain?
In Shannon Forest, during the entire year, the rain falls for 157.2 days and collects up to 30.47" (774mm) of precipitation.
When does it snow?
Months with snowfall are January through March, November and December.
When does it snow the most in Shannon Forest?
The month with the most snowfall is January, when snow falls for 3.8 days and typically aggregates up to 2.09" (53mm) of snow.
How many days does it snow?
In Shannon Forest, during the entire year, snow falls for 11.9 days and aggregates up to 5.75" (146mm) of snow.
What are the months with the lowest UV index?
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 5.1h of sunshine.
What are the least humid months?
The months with the lowest humidity are March, April and July, with an average relative humidity of 72%.
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.
When it does not snow?
April through October are months without snowfall.
What is the most humid month?
May is the most humid month, with an average relative humidity of 77%.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What is the hottest time of year?
Shannon Forest reaches its average highest temperatures in July, measuring 85.5°F (29.7°C) at the peak and 70.3°F (21.3°C) at the lowest.
What month has the most sunshine?
July has the most sunshine of the year in Shannon Forest, Maryland, with an average of 10.9h of sunshine.
What is the wettest month?
August is the month with the most rainfall. Rain falls for 16.8 days and accumulates 4.09" (104mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 30min of daylight.
Average temperature
Shannon Forest, MD
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.8°F).
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure
Shannon Forest, 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
Shannon Forest, MD
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.1mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.6mph - Average wind speed in October:
7.8mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Shannon Forest, MD
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are March, April and July (72%).
Average rainfall
Shannon Forest, MD
- Average rainfall in January:
1.81" - Average rainfall in February:
1.97" - Average rainfall in March:
2.17" - Average rainfall in April:
2.28" - Average rainfall in May:
2.95" - Average rainfall in June:
2.8"
- Average rainfall in July:
3.62" - Average rainfall in August:
4.09" - Average rainfall in September:
2.2" - Average rainfall in October:
2.24" - Average rainfall in November:
2.01" - Average rainfall in December:
2.32"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days
Shannon Forest, MD
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
12 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and November (8.4 days).
Average snowfall
Shannon Forest, MD
The month with the highest snowfall is January (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Shannon Forest, MD
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
3.4 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0 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:
0.3 days - Average snowfall days in December:
2.1 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Shannon Forest, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - 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 2min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 2min - 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days
Shannon Forest, MD
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
15.7 days - Average sunshine days in April:
14 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
12.1 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
16.9 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is November (19.9 days).
The months with the least sunshine days are May and July (10.8 days).
Average UV index
Shannon Forest, 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
Shannon Forest, MD
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility
Shannon Forest, 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).
Shannon Forest, Maryland, USA
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