Climate and monthly weather forecast
Roswell, GA

A breathtaking nature scene in the Blue Wall spot with the Old Mills State Park in Roswell, Georgia
A breathtaking nature scene in the Blue Wall spot with the Old Mills State Park in Roswell, Georgia

Weather in January

January, the same as December, in Roswell, Georgia, is a frosty winter month, with an average temperature ranging between max 49.3°F (9.6°C) and min 34.2°F (1.2°C). With an average high-temperature of 49.3°F (9.6°C) and an average low-temperature of 34.2°F (1.2°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a fresh month in Roswell, Georgia, with an average temperature varying between 37.9°F (3.3°C) and 54.5°F (12.5°C). In February, the average high-temperature is essentially the same as in January - a fresh 54.5°F (12.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Roswell, Georgia, with an average temperature fluctuating between 44.8°F (7.1°C) and 62.2°F (16.8°C). In Roswell, the average high-temperature in March marginally rises from a cool 54.5°F (12.5°C) in February to a comfortable 62.2°F (16.8°C). Weather in March »

Weather in April

April in Roswell, Georgia, is an agreeable spring month, with an average temperature fluctuating between 53.1°F (11.7°C) and 72°F (22.2°C). In April, the average high-temperature rises from an enjoyable 62.2°F (16.8°C) in March to a pleasant 72°F (22.2°C). Weather in April »

Weather in May

May, the last month of the spring in Roswell, is a moderately hot month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 60.6°F (15.9°C). In Roswell, the average high-temperature in May slightly increases from a pleasant 72°F (22.2°C) in April to a moderately hot 80.2°F (26.8°C). Weather in May »

Weather in June

June, the first month of the summer in Roswell, is a hot month, with an average temperature ranging between min 67.6°F (19.8°C) and max 87.4°F (30.8°C). In June, the average high-temperature slightly increases from a warm 80.2°F (26.8°C) in May to a tropical 87.4°F (30.8°C). Weather in June »

Weather in July

July, like June, is a hot summer month in Roswell, Georgia, with temperature in the range of an average low of 71.2°F (21.8°C) and an average high of 90.3°F (32.4°C). The warmest month is July, with an average high-temperature of 90.3°F (32.4°C) and an average low-temperature of 71.2°F (21.8°C). In July, the average heat index is estimated at an extremely hot 105.8°F (41°C). Weather in July »

Weather in August

August, the last month of the summer in Roswell, is another tropical month, with an average temperature ranging between min 70.3°F (21.3°C) and max 89.4°F (31.9°C). In August, the average high-temperature is relatively the same as in July - a still tropical 89.4°F (31.9°C). Weather in August »

Weather in September

September, the first month of the autumn in Roswell, is still a warm month, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 65.3°F (18.5°C). In Roswell, the average high-temperature in September slightly decreases from a tropical 89.4°F (31.9°C) in August to a warm 83.8°F (28.8°C). Weather in September »

Weather in October

October, the same as September, in Roswell, Georgia, is an agreeable autumn month, with an average temperature varying between 53.2°F (11.8°C) and 72.3°F (22.4°C). In Roswell, the average high-temperature in October drops from a moderately hot 83.8°F (28.8°C) in September to an agreeable 72.3°F (22.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Roswell, Georgia, with an average temperature varying between 60.8°F (16°C) and 43.5°F (6.4°C). In Roswell, the average high-temperature in November decreases from a pleasant 72.3°F (22.4°C) in October to a comfortable 60.8°F (16°C). Weather in November »

Weather in December

The first month of the winter, December, is also a fresh month in Roswell, Georgia, with an average temperature fluctuating between 39°F (3.9°C) and 53.4°F (11.9°C). In Roswell, the average high-temperature in December slightly decreases from an enjoyable 60.8°F (16°C) in November to a fresh 53.4°F (11.9°C). Weather in December »
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FAQ

What is the coldest month in Roswell?

With an average high-temperature of 49.3°F (9.6°C) and an average low-temperature of 34.2°F (1.2°C), January is the coldest month.

How much does it rain in Roswell?

In Roswell, Georgia, during the entire year, the rain falls for 183.1 days and collects up to 45.12" (1146mm) of precipitation.

When does it snow in Roswell?

January through March, November and December are months with snowfall in Roswell.

When does it snow the most in Roswell?

The month with the most snowfall is January, when snow falls for 1.5 days and typically aggregates up to 1.18" (30mm) of snow.

How much does it snow in Roswell?

In Roswell, Georgia, during the entire year, snow falls for 4.2 days and aggregates up to 2.95" (75mm) of snow.

When is Daylight Saving Time (DST) in Roswell?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Roswell?

In Roswell, Georgia, snow does not fall in April through October.

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

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 Roswell?

With an average of 14h and 23min of daylight, June has the longest days of the year in Roswell, Georgia.

What is the warmest month in Roswell?

July is the warmest month in Roswell, Georgia, with an average high-temperature of 90.3°F (32.4°C) and an average low-temperature of 71.2°F (21.8°C).

What is the least humid month in Roswell?

The months with the lowest humidity in Roswell are July and August, with an average relative humidity of 68%.

What month has the most sunshine in Roswell?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

What is the wettest month in Roswell?

The month with the most rainfall in Roswell is August, when the rain falls for 20.3 days and typically aggregates up to 5.55" (141mm) of precipitation.

What is the driest month in Roswell?

The month with the least rainfall in Roswell is October, when the rain falls for 10.3 days and typically collects 2.36" (60mm) of precipitation.

What is the most humid month in Roswell?

With an average relative humidity of 77%, December is the most humid month in Roswell.

What is the month with the shortest days in Roswell?

The month with the shortest days is December, with an average of 9h and 56min of daylight.

What is the month with the least sunshine in Roswell?

The month with the least sunshine in Roswell, Georgia, is December, with an average of 5h of sunshine.

When is the lowest UV index in Roswell?

December is the month with the lowest UV index in Roswell, Georgia, with an average maximum UV index of 2.

Average temperature
Roswell, GA

Average temperature - Roswell, GA

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.3°F).

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

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Average pressure
Roswell, GA

Average pressure - Roswell, GA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed
Roswell, GA

Average wind speed - Roswell, GA

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity
Roswell, GA

Average humidity - Roswell, GA

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (68%).

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Average rainfall
Roswell, GA

Average rainfall - Roswell, GA

The wettest month (with the highest rainfall) is August (5.55").
The driest month (with the least rainfall) is October (2.36").

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Average rainfall days
Roswell, GA

Average rainfall days - Roswell, GA

The month with the highest number of rainy days is July (20.8 days).
The months with the least rainy days are October and November (10.3 days).

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Average snowfall
Roswell, GA

Average snowfall - Roswell, GA

The month with the highest snowfall is January (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Roswell, GA

Average snowfall days - Roswell, GA

The month with the highest number of snowfall days is January (1.5 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
Roswell, GA

Average daylight / Average sunshine - Roswell, GA

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days
Roswell, GA

Average sunshine days - Roswell, GA

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (8 days).

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Average visibility
Roswell, GA

Average visibility - Roswell, GA

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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