Climate and monthly weather forecast
Williams, SC

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Weather in January

January, like December, is another mild winter month in Williams, South Carolina, with an average temperature ranging between min 39.9°F (4.4°C) and max 56.1°F (13.4°C). January brings the lowest temperatures, with an average high of 56.1°F (13.4°C) and an average low of 39.9°F (4.4°C). Weather in January »

Weather in February

The last month of the winter, February, is a comfortable month in Williams, South Carolina, with an average temperature fluctuating between 60.8°F (16°C) and 43°F (6.1°C). Williams's average high-temperature marks an enjoyable 60.8°F (16°C) with the advent of February, closely mirroring that of the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is still a comfortable month in Williams, South Carolina, with an average temperature varying between 48.7°F (9.3°C) and 67.6°F (19.8°C). The start of March is characterized by a subtle increase in the average high-temperature, transitioning from an enjoyable 60.8°F (16°C) in February to a still comfortable 67.6°F (19.8°C). Weather in March »

Weather in April

April is a moderately hot spring month in Williams, South Carolina, with an average temperature varying between 75.7°F (24.3°C) and 56.7°F (13.7°C). Williams's weather shows a minor temperature rise with the arrival of April, moving from an enjoyable 67.6°F (19.8°C) in March to a warm 75.7°F (24.3°C). Weather in April »

Weather in May

May, the last month of the spring in Williams, is another warm month, with an average temperature varying between 82.8°F (28.2°C) and 64.2°F (17.9°C). As Williams welcomes May, the average high-temperature displays a subtle shift, adjusting from 75.7°F (24.3°C) in April to a still warm 82.8°F (28.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a tropical month in Williams, South Carolina, with temperature in the range of an average high of 89.1°F (31.7°C) and an average low of 71.2°F (21.8°C). As Williams welcomes June, the average high-temperature displays a subtle shift, adjusting from a moderately hot 82.8°F (28.2°C) in May to a tropical 89.1°F (31.7°C). Weather in June »

Weather in July

July, like June, is another hot summer month in Williams, South Carolina, with an average temperature ranging between max 91.8°F (33.2°C) and min 73.4°F (23°C). In Williams, July is the month with the highest recorded average temperatures, measuring a high of 91.8°F (33.2°C) and a low of 73.4°F (23°C). During July, the heat index is appraised at a burning hot 114.8°F (46°C). Weather in July »

Weather in August

August, the last month of the summer in Williams, is another hot month, with an average temperature fluctuating between 73.2°F (22.9°C) and 90.5°F (32.5°C). The onset of August notes an average high-temperature of a still tropical 90.5°F (32.5°C), subtly shifted from July's 91.8°F (33.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Williams, is still a warm month, with an average temperature ranging between min 68.5°F (20.3°C) and max 85.6°F (29.8°C). During September, Williams observes a subtle ascent to a warm 85.6°F (29.8°C) from August's 90.5°F (32.5°C) in the average high-temperature. Weather in September »

Weather in October

October, like September, in Williams, South Carolina, is a moderately hot autumn month, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 76.5°F (24.7°C). Williams in October demonstrates a small temperature transition, adjusting from an average high of a moderately hot 85.6°F (29.8°C) in September to a still warm 76.5°F (24.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Williams, South Carolina, with an average temperature fluctuating between 65.8°F (18.8°C) and 47.7°F (8.7°C). In November, the average high-temperature decreases from a moderately hot 76.5°F (24.7°C) in October to an enjoyable 65.8°F (18.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also a moderate month in Williams, South Carolina, with an average temperature fluctuating between 44.1°F (6.7°C) and 60.1°F (15.6°C). The shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a refreshing 65.8°F (18.8°C) to a moderate 60.1°F (15.6°C). Weather in December »
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Frequently asked questions

What is the coldest month in Williams?

Williams's January weather reaches an average high of 56.1°F (13.4°C) and an average low of 39.9°F (4.4°C), making it the coldest month.

What are the least humid months in Williams?

January, March and November, with an average relative humidity of 72%, are the least humid months.

How many days does it rain in Williams?

In Williams, South Carolina, during the entire year, the rain falls for 149.7 days and collects up to 21.5" (546mm) of precipitation.

When does it snow in Williams?

Months with snowfall in Williams are January and February.

What is the snowiest month in Williams?

The months with the most snowfall are January and February, with an average 0.12" (3mm) of accumulated snow.

How much does it snow in Williams?

In Williams, South Carolina, during the entire year, snow falls for 0.8 days and aggregates up to 0.24" (6mm) of snow.

When is the lowest UV index in Williams?

The months with the lowest UV index in Williams, South Carolina, are January and December, with an average maximum UV index of 3.

When it does not snow in Williams?

In Williams, snow does not fall in March through December.

When is Daylight Saving Time (DST) in Williams?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Williams, South Carolina, 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 are the longest days in Williams?

With an average of 14h and 18min of daylight, June has the longest days of the year in Williams, South Carolina.

What is the month with the highest UV index in Williams?

The months with the highest UV index are June through August, with an average maximum UV index of 7.

What time of the year is the hottest in Williams?

In Williams, South Carolina, the peak average temperatures are observed in July, with a high of 91.8°F (33.2°C) and a low of 73.4°F (23°C).

What month has the most sunshine in Williams?

With an average of 10.9h of sunshine, July has the most sunshine of the year in Williams.

What are the most humid months in Williams?

The months with the highest humidity are August and December, with an average relative humidity of 77%.

What is the rainiest month in Williams?

August is the month with the most rainfall in Williams, South Carolina. Rain falls for 20.2 days and accumulates 3.15" (80mm) of precipitation.

What is the driest month in Williams?

November is the month with the least rainfall. Rain falls for 6.2 days and accumulates 0.75" (19mm) of precipitation.

What is the month with the shortest days in Williams?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in Williams?

With an average of 5.5h of sunshine, December has the least sunshine of the year in Williams, South Carolina.

Average temperature
Williams, SC

Average temperature - Williams, SC

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (56.1°F).

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).

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Average pressure
Williams, SC

Average pressure - Williams, SC

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed
Williams, SC

Average wind speed - Williams, SC

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity
Williams, SC

Average humidity - Williams, SC

The months with the highest relative humidity are August and December (77%).
The months with the lowest relative humidity are January, March and November (72%).

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Average rainfall
Williams, SC

Average rainfall - Williams, SC

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is November (0.75").

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Average rainfall days
Williams, SC

Average rainfall days - Williams, SC

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (6.2 days).

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Average snowfall
Williams, SC

Average snowfall - Williams, SC

The months with the highest snowfall are January and February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days
Williams, SC

Average snowfall days - Williams, SC

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight / Average sunshine
Williams, SC

Average daylight / Average sunshine - Williams, SC

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days
Williams, SC

Average sunshine days - Williams, SC

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (6.9 days).

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Average UV index
Williams, SC

Average UV index - Williams, SC

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average visibility
Williams, SC

Average visibility - Williams, SC

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).

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Williams, South Carolina, USA

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