Climate and monthly weather forecast
Deal Island, MD

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Weather in January

January, like December, in Deal Island, Maryland, is a wintry winter month, with an average temperature ranging between max 42.1°F (5.6°C) and min 31.5°F (-0.3°C). The coldest time of the year is January, with temperatures averaging a high of 42.1°F (5.6°C) and a low of 31.5°F (-0.3°C). Weather in January »

Weather in February

February, the last month of the winter in Deal Island, is a frosty month, with temperature in the range of an average high of 45.3°F (7.4°C) and an average low of 33.6°F (0.9°C). In the transition from January to February, Deal Island reports an average high-temperature of a frosty 45.3°F (7.4°C), indicating a close resemblance to the prior month. Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Deal Island, Maryland, with an average temperature fluctuating between 39.4°F (4.1°C) and 50.7°F (10.4°C). Deal Island's transition into March sees a mild rise in the average high-temperature, edging from a frosty 45.3°F (7.4°C) in February to a cool 50.7°F (10.4°C). Weather in March »

Weather in April

April is an enjoyable spring month in Deal Island, Maryland, with an average temperature ranging between max 61.7°F (16.5°C) and min 49.3°F (9.6°C). The commencement of April sees a shift in the average high-temperature, moving from a fresh 50.7°F (10.4°C) in March to an enjoyable 61.7°F (16.5°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Deal Island, Maryland, with an average temperature varying between 58.6°F (14.8°C) and 71.1°F (21.7°C). The shift from April to May brings an increase in the average high-temperature, moving from an enjoyable 61.7°F (16.5°C) to a pleasant 71.1°F (21.7°C). Weather in May »

Weather in June

June, the first month of the summer in Deal Island, is a moderately hot month, with an average temperature varying between 79.3°F (26.3°C) and 67.1°F (19.5°C). As May transitions into June, a subtle temperature shift is observed, with average highs adjusting from an agreeable 71.1°F (21.7°C) to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Deal Island, Maryland, is a moderately hot summer month, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 72.3°F (22.4°C). The warmest temperatures occur during July, when averages reach a peak of 84.2°F (29°C) and a low of 72.3°F (22.4°C). Throughout July, the heat index is computed to be a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Deal Island, Maryland, with an average temperature fluctuating between 71.1°F (21.7°C) and 82.8°F (28.2°C). Deal Island's weather in August indicates an average high-temperature of a still warm 82.8°F (28.2°C), nearly consistent with the 84.2°F (29°C) of July. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Deal Island, Maryland, with temperature in the range of an average high of 77°F (25°C) and an average low of 65.7°F (18.7°C). Transitioning from August to September involves a subtle drop in average high-temperatures, descending from 82.8°F (28.2°C) to a still warm 77°F (25°C). Weather in September »

Weather in October

October, like September, in Deal Island, Maryland, is another comfortable autumn month, with an average temperature fluctuating between 67.1°F (19.5°C) and 56.3°F (13.5°C). As Deal Island enters October, the average high-temperature decreases from the a warm 77°F (25°C) of September to a refreshing 67.1°F (19.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another mild month in Deal Island, Maryland, with an average temperature varying between 44.4°F (6.9°C) and 55.6°F (13.1°C). The start of November involves a temperature drop, moving from a refreshing 67.1°F (19.5°C) in October to a moderate 55.6°F (13.1°C). Weather in November »

Weather in December

December, the first month of the winter in Deal Island, is also a frosty month, with an average temperature ranging between max 48.2°F (9°C) and min 38.1°F (3.4°C). December sees a slight reduction in average high-temperature, with a shift from a mild 55.6°F (13.1°C) in November to a chilly 48.2°F (9°C). Weather in December »
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

In Deal Island, the average lowest temperatures are observed in January, with a high of 42.1°F (5.6°C) and a low of 31.5°F (-0.3°C).

What is the least humid month?

With an average relative humidity of 74%, January is the least humid month.

What is the driest month?

January is the month with the least rainfall. Rain falls for 9.7 days and accumulates 1.93" (49mm) of precipitation.

How much does it rain?

Throughout the year, there are 158.7 rainfall days, and 30.35" (771mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through March, November and December.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 3.1 days and typically aggregates up to 1.34" (34mm) of snow.

How much does it snow?

Throughout the year, there are 8.7 snowfall days, and 3.74" (95mm) of snow is accumulated.

What is the month with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

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?

In Deal Island, snow does not fall in April through October.

What is the most humid month?

With an average relative humidity of 79%, May is the most humid month.

What are the months with 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?

With an average of 14h and 48min of daylight, June has the longest days of the year.

What part of the year is the hottest?

With average temperatures fluctuating between a high of 84.2°F (29°C) and a low of 72.3°F (22.4°C), July stands out as the warmest month.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.9h of sunshine.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 17.2 days and typically aggregates up to 3.46" (88mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 36min of daylight, December has the shortest days of the year.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.2h of sunshine.

Average temperature
Deal Island, MD

Average temperature - Deal Island, 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 (42.1°F).

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure
Deal Island, MD

Average pressure - Deal Island, MD

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Deal Island, MD

Average wind speed - Deal Island, MD

The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity
Deal Island, MD

Average humidity - Deal Island, MD

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (74%).

Average rainfall
Deal Island, MD

Average rainfall - Deal Island, MD

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days
Deal Island, MD

Average rainfall days - Deal Island, MD

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.7 days).

Average snowfall
Deal Island, MD

Average snowfall - Deal Island, MD

The month with the highest snowfall is January (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Deal Island, MD

Average snowfall days - Deal Island, MD

The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Deal Island, MD

Average daylight / Average sunshine - Deal Island, MD

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days
Deal Island, MD

Average sunshine days - Deal Island, MD

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is August (9.8 days).

Average UV index
Deal Island, MD

Average UV index - Deal Island, 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 and December (UV index 2).

Average visibility
Deal Island, MD

Average visibility - Deal Island, 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).

Deal Island, Maryland, USA

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