Climate and monthly weather forecast
Williamstown, GA

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Weather in January

January, the same as December, in Williamstown, Georgia, is another chilly winter month, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 30.2°F (-1°C). January, with an average high of 45.1°F (7.3°C) and a low of 30.2°F (-1°C), signifies the coldest month of the year. Weather in January »

Weather in February

The last month of the winter, February, is a fresh month in Williamstown, Georgia, with an average temperature varying between 50°F (10°C) and 34.3°F (1.3°C). In February, Williamstown experiences a minor shift in meteorological conditions with average high-temperatures marked at a cool 50°F (10°C), closely mirroring the climate in January. Weather in February »

Weather in March

The first month of the spring, March, is a mild month in Williamstown, Georgia, with an average temperature ranging between max 57.4°F (14.1°C) and min 40.3°F (4.6°C). March's onset brings a minor rise in the average high-temperature, moving from a cool 50°F (10°C) in February to a mild 57.4°F (14.1°C). Weather in March »

Weather in April

April in Williamstown, Georgia, is a refreshing spring month, with an average temperature varying between 67.3°F (19.6°C) and 47.8°F (8.8°C). The shift into April is marked by a rise in the average high-temperature, moving from March's refreshing 57.4°F (14.1°C) to an enjoyable 67.3°F (19.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Williamstown, Georgia, with an average temperature fluctuating between 55°F (12.8°C) and 75°F (23.9°C). Williamstown's weather in May presents a minor rise in the average high-temperature, moving from a comfortable 67.3°F (19.6°C) in April to a moderately hot 75°F (23.9°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Williamstown, Georgia, with an average temperature fluctuating between 61.3°F (16.3°C) and 82.6°F (28.1°C). A slight uplift in the average high-temperature marks June, adjusting from May's 75°F (23.9°C) to a still warm 82.6°F (28.1°C). Weather in June »

Weather in July

July, like June, in Williamstown, Georgia, is a moderately hot summer month, with an average temperature ranging between min 64°F (17.8°C) and max 84.9°F (29.4°C). July temperatures tend to peak at an average high of 84.9°F (29.4°C) and dip to a low of 64°F (17.8°C). In July, the average heat index is calculated to be a torrid 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Williamstown, is also a moderately hot month, with an average temperature fluctuating between 63.7°F (17.6°C) and 84.4°F (29.1°C). The onset of August marks an average high-temperature of a still warm 84.4°F (29.1°C), hardly differing from July's 84.9°F (29.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Williamstown, Georgia, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 79.3°F (26.3°C). At the start of September, Williamstown's average high-temperature reaches a still moderately hot 79.3°F (26.3°C), subtly different from the preceding month. Weather in September »

Weather in October

October, like September, is an agreeable autumn month in Williamstown, Georgia, with an average temperature ranging between min 48.4°F (9.1°C) and max 68.5°F (20.3°C). The arrival of October indicates a decrease in the average high-temperature, moving from a warm 79.3°F (26.3°C) in September to a pleasant 68.5°F (20.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Williamstown, is another refreshing month, with an average temperature ranging between min 39.2°F (4°C) and max 57°F (13.9°C). The onset of November comes with a shift in the average high-temperature, falling from an agreeable 68.5°F (20.3°C) in October to a mild 57°F (13.9°C). Weather in November »

Weather in December

December, the first month of the winter in Williamstown, is still a cool month, with an average temperature ranging between min 35.4°F (1.9°C) and max 50°F (10°C). During the shift to December, a minor reduction in average high-temperature is observed, shifting from a mild 57°F (13.9°C) in November to a fresh 50°F (10°C). Weather in December »
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January, recording an average high temperature of 45.1°F (7.3°C) and a low temperature of 30.2°F (-1°C), is Williamstown's coldest month.

How much does it rain?

In Williamstown, during the entire year, the rain falls for 190.7 days and collects up to 47.32" (1202mm) of precipitation.

When does it snow?

January through April, October through December are months with snowfall.

How much does it snow?

In Williamstown, during the entire year, snow falls for 14.7 days and aggregates up to 6.38" (162mm) of snow.

When is the lowest UV index?

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

What is the snowiest month?

The month with the most snowfall is February, when snow falls for 3.7 days and typically aggregates up to 2.13" (54mm) of snow.

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 Williamstown, snow does not fall in May through September.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

When are the longest days?

The month with the longest days in Williamstown is June, with an average of 14h and 30min of daylight.

What month has the most sunshine in Williamstown?

June has the most sunshine of the year, with an average of 10.4h of sunshine.

What is the warmest month?

In Williamstown, July records the average highest temperatures, peaking at 84.9°F (29.4°C) and reaching a low of 64°F (17.8°C).

What is the driest month?

The month with the least rainfall is September, when the rain falls for 14.9 days and typically collects 2.91" (74mm) of precipitation.

What are the least humid months?

The months with the lowest humidity are October and November, with an average relative humidity of 76%.

What is the most humid month?

The most humid month is December, with an average relative humidity of 81%.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 14.5 days and typically aggregates up to 4.8" (122mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 54min of daylight.

What is the month with the least sunshine in Williamstown?

With an average of 5h of sunshine, December has the least sunshine of the year.

Average temperature
Williamstown, GA

Average temperature - Williamstown, GA

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (45.1°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure
Williamstown, GA

Average pressure - Williamstown, GA

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

Average wind speed
Williamstown, GA

Average wind speed - Williamstown, GA

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity
Williamstown, GA

Average humidity - Williamstown, GA

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall
Williamstown, GA

Average rainfall - Williamstown, GA

The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is September (2.91").

Average rainfall days
Williamstown, GA

Average rainfall days - Williamstown, GA

The months with the highest number of rainy days are June and July (19.8 days).
The month with the least rainy days is November (11.3 days).

Average snowfall
Williamstown, GA

Average snowfall - Williamstown, GA

The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Williamstown, GA

Average snowfall days - Williamstown, GA

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Williamstown, GA

Average daylight / Average sunshine - Williamstown, GA

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days
Williamstown, GA

Average sunshine days - Williamstown, GA

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8 days).

Average UV index
Williamstown, GA

Average UV index - Williamstown, GA

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, February and December (UV index 2).

Average visibility
Williamstown, GA

Average visibility - Williamstown, GA

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

Williamstown, Georgia, USA

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