Climate and monthly weather forecast
Green Valley, MD

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Weather in January

January, the same as December, is another cold winter month in Green Valley, Maryland, with an average temperature ranging between max 40.6°F (4.8°C) and min 27.5°F (-2.5°C). The coldest temperatures occur during January, when averages reach a peak of 40.6°F (4.8°C) and a low of 27.5°F (-2.5°C). Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in Green Valley, Maryland, with an average temperature ranging between min 30.2°F (-1°C) and max 44.8°F (7.1°C). With the onset of February, a modest change to a frosty 44.8°F (7.1°C) from January's 40.6°F (4.8°C) is noted in high-temperature. Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Green Valley, Maryland, with temperature in the range of an average high of 53.2°F (11.8°C) and an average low of 37.2°F (2.9°C). The onset of March introduces a subtle rise in the average high-temperature, nudging from a chilly 44.8°F (7.1°C) in February to a cool 53.2°F (11.8°C). Weather in March »

Weather in April

April in Green Valley, Maryland, is a comfortable spring month, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 47.3°F (8.5°C). A shift in the average high-temperature is noticeable in April, changing from a fresh 53.2°F (11.8°C) in March to an enjoyable 65.1°F (18.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Green Valley, Maryland, with an average temperature fluctuating between 57°F (13.9°C) and 74.5°F (23.6°C). May's onset brings a rise in the average high-temperature, moving from a comfortable 65.1°F (18.4°C) in April to a warm 74.5°F (23.6°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Green Valley, Maryland, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 64.2°F (17.9°C). June brings a slight increase in the average high-temperature, progressing from a moderately hot 74.5°F (23.6°C) in May to a still warm 82.8°F (28.2°C). Weather in June »

Weather in July

July is a tropical summer month in Green Valley, Maryland, with temperature in the range of an average high of 88°F (31.1°C) and an average low of 69.1°F (20.6°C). The average temperatures reach their apex in July, averaging 88°F (31.1°C) at the high end and 69.1°F (20.6°C) at the low end. The heat index value for July is evaluated at a torrid 100.4°F (38°C). Weather in July »

Weather in August

August, the last month of the summer in Green Valley, is another warm month, with an average temperature fluctuating between 85.8°F (29.9°C) and 68°F (20°C). As Green Valley welcomes August, the average high-temperature records at a moderately hot 85.8°F (29.9°C), marking an insignificant deviation from the prior month. Weather in August »

Weather in September

September, the first month of the autumn in Green Valley, is still a warm month, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 78.4°F (25.8°C). The advent of September brings a slight shift in average high-temperature, moving from a moderately hot 85.8°F (29.9°C) in August to a still warm 78.4°F (25.8°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Green Valley, Maryland, with an average temperature varying between 66.9°F (19.4°C) and 51.3°F (10.7°C). The start of October involves a temperature drop, moving from a moderately hot 78.4°F (25.8°C) in September to a comfortable 66.9°F (19.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Green Valley, Maryland, with an average temperature fluctuating between 39.7°F (4.3°C) and 54.9°F (12.7°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's enjoyable 66.9°F (19.4°C) to a fresh 54.9°F (12.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Green Valley, Maryland, with an average temperature ranging between max 46°F (7.8°C) and min 34.2°F (1.2°C). In Green Valley, the average high-temperature in December gently drops from a cool 54.9°F (12.7°C) in November to a chilly 46°F (7.8°C). Weather in December »
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

In Green Valley, Maryland, the lowest temperatures are generally noted in January, averaging a high of 40.6°F (4.8°C) and a low of 27.5°F (-2.5°C).

What is the driest month?

The month with the least rainfall is January, when the rain falls for 9.3 days and typically collects 1.57" (40mm) of precipitation.

How many days does it rain in Green Valley?

In Green Valley, during the entire year, the rain falls for 149.1 days and collects up to 26.14" (664mm) of precipitation.

When does it snow?

Months with snowfall are January through March and December.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 3.8 days and typically aggregates up to 2.17" (55mm) of snow.

How much does it snow in Green Valley?

In Green Valley, during the entire year, snow falls for 11.7 days and aggregates up to 6.3" (160mm) of snow.

What is the month with the least sunshine?

January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine.

What are the months with the lowest UV index?

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

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%.

When it does not snow?

In Green Valley, snow does not fall in April through November.

What is the most humid month?

With an average relative humidity of 76%, May is the most humid month.

When are the longest days?

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

What is the month with the highest UV index?

June is the month with the highest UV index, with an average maximum UV index of 7.

What is the hottest time of year?

Green Valley's July weather reaches an average high of 88°F (31.1°C) and an average low of 69.1°F (20.6°C), making it the warmest month.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.7h of sunshine.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 15.5 days and accumulates 3.46" (88mm) of precipitation.

What is the month with the shortest days in Green Valley?

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

Average temperature
Green Valley, MD

Average temperature - Green Valley, MD

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.6°F).

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure
Green Valley, MD

Average pressure - Green Valley, MD

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Green Valley, MD

Average wind speed - Green Valley, MD

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity
Green Valley, MD

Average humidity - Green Valley, MD

The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall
Green Valley, MD

Average rainfall - Green Valley, MD

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.57").

Average rainfall days
Green Valley, MD

Average rainfall days - Green Valley, MD

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.1 days).

Average snowfall
Green Valley, MD

Average snowfall - Green Valley, MD

The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days
Green Valley, MD

Average snowfall days - Green Valley, MD

The months with the highest number of snowfall days are January and February (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
Green Valley, MD

Average daylight / Average sunshine - Green Valley, 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 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

Average sunshine days
Green Valley, MD

Average sunshine days - Green Valley, MD

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.8 days).

Average visibility
Green Valley, MD

Average visibility - Green Valley, MD

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Green Valley, Maryland, USA

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