Climate and monthly weather forecast
Chartwood, MD

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Weather in January

January, like December, in Chartwood, Maryland, is an icy winter month, with temperature in the range of an average low of 28.4°F (-2°C) and an average high of 39.6°F (4.2°C). January proves to be the coldest month, recording an average maximum temperature of 39.6°F (4.2°C) and a minimum temperature of 28.4°F (-2°C). Weather in January »

Weather in February

February, the last month of the winter in Chartwood, is a chilly month, with an average temperature ranging between min 30.7°F (-0.7°C) and max 43.2°F (6.2°C). The arrival of February brings an average high-temperature of a chilly 43.2°F (6.2°C), subtly diverging from January's 39.6°F (4.2°C). Weather in February »

Weather in March

March, the first month of the spring in Chartwood, is a fresh month, with an average temperature varying between 50.7°F (10.4°C) and 37.8°F (3.2°C). March introduces a minor temperature shift, with average high-temperatures adjusting from February's frosty 43.2°F (6.2°C) to a fresh 50.7°F (10.4°C). Weather in March »

Weather in April

April in Chartwood, Maryland, is an enjoyable spring month, with an average temperature ranging between max 62.8°F (17.1°C) and min 47.5°F (8.6°C). Chartwood's weather in April shows a rise in the average high-temperature, moving up from March's fresh 50.7°F (10.4°C) to a refreshing 62.8°F (17.1°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Chartwood, Maryland, with an average temperature ranging between min 57.2°F (14°C) and max 72.1°F (22.3°C). Chartwood in May sees a temperature change, with average high-temperatures moving from a refreshing 62.8°F (17.1°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Chartwood, Maryland, with an average temperature varying between 65.7°F (18.7°C) and 80.2°F (26.8°C). In June, the meteorological conditions subtly change with the average high-temperature edging from a pleasant 72.1°F (22.3°C) in May to a moderately hot 80.2°F (26.8°C). Weather in June »

Weather in July

July, like June, in Chartwood, Maryland, is a moderately hot summer month, with an average temperature fluctuating between 85.6°F (29.8°C) and 70.7°F (21.5°C). During the warmest month, July, temperatures average a high of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C). The heat index in July is computed to be a very hot 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Chartwood, is also a moderately hot month, with an average temperature ranging between max 83.7°F (28.7°C) and min 69.1°F (20.6°C). The advent of August reveals an average high-temperature of a still warm 83.7°F (28.7°C), showing minimal difference from the prior month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Chartwood, Maryland, with an average temperature varying between 77.4°F (25.2°C) and 63.3°F (17.4°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from 83.7°F (28.7°C) in August to a still moderately hot 77.4°F (25.2°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Chartwood, Maryland, with an average temperature ranging between min 52.9°F (11.6°C) and max 65.5°F (18.6°C). A subtle decrease in the average high-temperature marks October, falling from September's moderately hot 77.4°F (25.2°C) to a refreshing 65.5°F (18.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Chartwood, Maryland, with an average temperature varying between 41.4°F (5.2°C) and 53.8°F (12.1°C). November shows a mild decline in the average high-temperature, falling from October's refreshing 65.5°F (18.6°C) to a cool 53.8°F (12.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Chartwood, Maryland, with an average temperature fluctuating between 45.5°F (7.5°C) and 34.7°F (1.5°C). Chartwood in December experiences a gentle temperature dip, with average high-temperatures reducing from a cool 53.8°F (12.1°C) in November to a frosty 45.5°F (7.5°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Chartwood?

The month of January, characterized by an average high of 39.6°F (4.2°C) and a low of 28.4°F (-2°C), is recognized as the coldest.

What are the least humid months in Chartwood?

The months with the lowest humidity are January, March, April and November, with an average relative humidity of 72%.

How many days does it rain in Chartwood?

Throughout the year, in Chartwood, there are 155.7 rainfall days, and 31.22" (793mm) of precipitation is accumulated.

When does it snow in Chartwood?

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

What is the snowiest month in Chartwood?

The month with the most snowfall in Chartwood is January, when snow falls for 4.4 days and typically aggregates up to 2.05" (52mm) of snow.

How many days does it snow in Chartwood?

Throughout the year, in Chartwood, Maryland, there are 14 snowfall days, and 6.14" (156mm) of snow is accumulated.

What are the months with the lowest UV index in Chartwood?

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

What is the month with the least sunshine in Chartwood?

February has the least sunshine of the year, with an average of 5.1h of sunshine.

When is Daylight Saving Time (DST) in Chartwood?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Chartwood, Maryland, 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 in Chartwood?

The most humid month in Chartwood, Maryland, is May, with an average relative humidity of 78%.

When it does not snow in Chartwood?

May through October are months without snowfall in Chartwood.

What are the months with the highest UV index in Chartwood?

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 Chartwood?

With an average of 14h and 54min of daylight, June has the longest days of the year in Chartwood, Maryland.

What is the warmest month in Chartwood?

Chartwood's temperature records reveal July as the warmest month, marked by average highs of 85.6°F (29.8°C) and lows of 70.7°F (21.5°C).

What month has the most sunshine in Chartwood?

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

What is the wettest month in Chartwood?

The month with the most rainfall in Chartwood, Maryland, is August, when the rain falls for 13.9 days and typically aggregates up to 3.54" (90mm) of precipitation.

What is the driest month in Chartwood?

September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.89" (48mm) of precipitation.

What is the month with the shortest days in Chartwood?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Chartwood.

Average temperature
Chartwood, MD

Average temperature - Chartwood, MD

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure
Chartwood, MD

Average pressure - Chartwood, 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).

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Average wind speed
Chartwood, MD

Average wind speed - Chartwood, MD

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity
Chartwood, MD

Average humidity - Chartwood, MD

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

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Average rainfall
Chartwood, MD

Average rainfall - Chartwood, MD

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days
Chartwood, MD

Average rainfall days - Chartwood, MD

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall
Chartwood, MD

Average snowfall - Chartwood, MD

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Chartwood, MD

Average snowfall days - Chartwood, MD

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Chartwood, MD

Average daylight / Average sunshine - Chartwood, 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 6min).

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Average sunshine days
Chartwood, MD

Average sunshine days - Chartwood, MD

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index
Chartwood, MD

Average UV index - Chartwood, 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).

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Average visibility
Chartwood, MD

Average visibility - Chartwood, 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).

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Chartwood, Maryland, USA

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