Climate and monthly weather forecast
Calvert Hills, MD

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Weather in January

January, the same as December, is a wintry winter month in Calvert Hills, Maryland, with temperature in the range of an average high of 39.9°F (4.4°C) and an average low of 27.7°F (-2.4°C). January is the coldest month, with the temperature often reaching an average high of 39.9°F (4.4°C) and an average low of 27.7°F (-2.4°C). Weather in January »

Weather in February

February, the last month of the winter in Calvert Hills, is a chilly month, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 30°F (-1.1°C). Calvert Hills, Maryland, observes an average high-temperature of a chilly 44.2°F (6.8°C) in February, barely different from 39.9°F (4.4°C) in January. Weather in February »

Weather in March

March, the first month of the spring in Calvert Hills, is a fresh month, with an average temperature ranging between max 52.3°F (11.3°C) and min 37.4°F (3°C). March brings a slight increase in the average high-temperature, progressing from a frosty 44.2°F (6.8°C) in February to a fresh 52.3°F (11.3°C). Weather in March »

Weather in April

April in Calvert Hills, Maryland, is an enjoyable spring month, with an average temperature fluctuating between 64.8°F (18.2°C) and 47.3°F (8.5°C). Calvert Hills in April sees a temperature change, with average high-temperatures moving from a fresh 52.3°F (11.3°C) in March to an enjoyable 64.8°F (18.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Calvert Hills, Maryland, with an average temperature ranging between min 57°F (13.9°C) and max 73.9°F (23.3°C). The shift into May is marked by a rise in the average high-temperature, moving from April's refreshing 64.8°F (18.2°C) to a moderately hot 73.9°F (23.3°C). Weather in May »

Weather in June

June, the first month of the summer in Calvert Hills, is also a moderately hot month, with an average temperature fluctuating between 64.6°F (18.1°C) and 81.9°F (27.7°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from a moderately hot 73.9°F (23.3°C) in May to a still warm 81.9°F (27.7°C). Weather in June »

Weather in July

July is a tropical summer month in Calvert Hills, Maryland, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 70°F (21.1°C). July, with its average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 70°F (21.1°C), holds the record as the warmest month. During July, the heat index is evaluated at a torrid 98.6°F (37°C). Weather in July »

Weather in August

August, the last month of the summer in Calvert Hills, is also a moderately hot month, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 68.7°F (20.4°C). Calvert Hills's shift into August is marked by a subtle change to a warm 85.1°F (29.5°C) from July's 87.4°F (30.8°C) in temperature. Weather in August »

Weather in September

September, the first month of the autumn in Calvert Hills, is still a warm month, with an average temperature ranging between min 62.2°F (16.8°C) and max 78.1°F (25.6°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's 85.1°F (29.5°C) to a still warm 78.1°F (25.6°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Calvert Hills, Maryland, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 66.2°F (19°C). Calvert Hills experiences a temperature shift at the start of October, with average high-temperatures adjusting from a warm 78.1°F (25.6°C) in September to a refreshing 66.2°F (19°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Calvert Hills, Maryland, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 54.1°F (12.3°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from a refreshing 66.2°F (19°C) to a cool 54.1°F (12.3°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Calvert Hills, Maryland, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 45.5°F (7.5°C). The arrival of December corresponds with a light shift in temperature, down from a cool 54.1°F (12.3°C) in November to a chilly 45.5°F (7.5°C). Weather in December »
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January is the coldest month of the year, registering average temperatures as high as 39.9°F (4.4°C) and as low as 27.7°F (-2.4°C).

What is the driest month?

January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 2.01" (51mm) of precipitation.

How many days does it rain?

In Calvert Hills, during the entire year, the rain falls for 157.9 days and collects up to 31.14" (791mm) of precipitation.

When does it snow?

Months with snowfall are January through April and December.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 4.1 days and typically aggregates up to 2.6" (66mm) of snow.

How much does it snow?

In Calvert Hills, during the entire year, snow falls for 13.5 days and aggregates up to 7.2" (183mm) of snow.

When is the lowest UV index?

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

What is the month with the least sunshine?

February has the least sunshine of the year in Calvert Hills, with an average of 5h of sunshine.

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 are the least humid months?

The months with the lowest humidity are April and July, with an average relative humidity of 71%.

What is the most humid month?

May, October and December, with an average relative humidity of 76%, are most humid months.

When it does not snow?

May through November are months without snowfall.

What is the month 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 54min of daylight, June has the longest days of the year.

What are the warmest months?

Calvert Hills records the warmest temperatures in July, averaging a high of 87.4°F (30.8°C) and a low of 70°F (21.1°C).

What month has the most sunshine in Calvert Hills?

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

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 15.8 days and typically aggregates up to 3.58" (91mm) of precipitation.

What is the month with the shortest days in Calvert Hills?

December has the shortest days of the year in Calvert Hills, with an average of 9h and 30min of daylight.

Average temperature
Calvert Hills, MD

Average temperature - Calvert Hills, MD

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure
Calvert Hills, MD

Average pressure - Calvert Hills, MD

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
Calvert Hills, MD

Average wind speed - Calvert Hills, MD

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity
Calvert Hills, MD

Average humidity - Calvert Hills, MD

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall
Calvert Hills, MD

Average rainfall - Calvert Hills, MD

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days
Calvert Hills, MD

Average rainfall days - Calvert Hills, MD

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

Average snowfall
Calvert Hills, MD

Average snowfall - Calvert Hills, MD

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days
Calvert Hills, MD

Average snowfall days - Calvert Hills, MD

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Calvert Hills, MD

Average daylight / Average sunshine - Calvert Hills, MD

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).

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 0min).

Average sunshine days
Calvert Hills, MD

Average sunshine days - Calvert Hills, MD

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

Average UV index
Calvert Hills, MD

Average UV index - Calvert 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 and December (UV index 2).

Average visibility
Calvert Hills, MD

Average visibility - Calvert 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).

Calvert Hills, Maryland, USA

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