Climate and monthly weather forecast
Round O, SC

Weather in January

January, the same as December, in Round O, South Carolina, is a moderate winter month, with an average temperature fluctuating between 56.1°F (13.4°C) and 39.9°F (4.4°C). With an average high-temperature of 56.1°F (13.4°C) and an average low-temperature of 39.9°F (4.4°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Round O, is an enjoyable month, with an average temperature varying between 43°F (6.1°C) and 60.8°F (16°C). In February, the average high-temperature is almost the same as in January - an enjoyable 60.8°F (16°C). Weather in February »

Weather in March

March, the first month of the spring in Round O, is also an enjoyable month, with an average temperature fluctuating between 67.6°F (19.8°C) and 48.7°F (9.3°C). In March, the average high-temperature marginally rises 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 warm spring month in Round O, South Carolina, with an average temperature varying between 56.7°F (13.7°C) and 75.7°F (24.3°C). In Round O, South Carolina, the average high-temperature in April marginally rises from an enjoyable 67.6°F (19.8°C) in March to a moderately hot 75.7°F (24.3°C). Weather in April »

Weather in May

May, the last month of the spring in Round O, is another warm month, with an average temperature fluctuating between 64.2°F (17.9°C) and 82.8°F (28.2°C). In May, the average high-temperature slightly increases from 75.7°F (24.3°C) in April to a still moderately hot 82.8°F (28.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a hot month in Round O, South Carolina, with an average temperature varying between 71.2°F (21.8°C) and 89.1°F (31.7°C). In June, the average high-temperature marginally rises 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, the same as June, in Round O, South Carolina, is a hot summer month, with an average temperature fluctuating between 91.8°F (33.2°C) and 73.4°F (23°C). July is the warmest month, with an average high-temperature of 91.8°F (33.2°C) and an average low-temperature of 73.4°F (23°C). In July, the average heat index is evaluated at a burning hot 114.8°F (46°C). Weather in July »

Weather in August

August, the last month of the summer in Round O, is another hot month, with an average temperature fluctuating between 73.2°F (22.9°C) and 90.5°F (32.5°C). In August, the average high-temperature is relatively the same as in July - a still hot 90.5°F (32.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Round O, is still a warm month, with an average temperature fluctuating between 85.6°F (29.8°C) and 68.5°F (20.3°C). In September, the average high-temperature is essentially the same as in August - a warm 85.6°F (29.8°C). Weather in September »

Weather in October

October, like September, in Round O, South Carolina, is another warm autumn month, with an average temperature ranging between min 58.5°F (14.7°C) and max 76.5°F (24.7°C). In Round O, the average high-temperature in October decreases from 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 Round O, South Carolina, with an average temperature varying between 47.7°F (8.7°C) and 65.8°F (18.8°C). In November, the average high-temperature drops from a warm 76.5°F (24.7°C) in October to an enjoyable 65.8°F (18.8°C). Weather in November »

Weather in December

December, the first month of the winter in Round O, is still a mild month, with an average temperature varying between 60.1°F (15.6°C) and 44.1°F (6.7°C). In December, the average high-temperature slightly decreases from an enjoyable 65.8°F (18.8°C) in November to a moderate 60.1°F (15.6°C). Weather in December »
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FAQ

What is the coldest month in Round O?

January is the coldest month in Round O, South Carolina, with an average high-temperature of 56.1°F (13.4°C) and an average low-temperature of 39.9°F (4.4°C).

What is the least humid month in Round O?

The months with the lowest humidity in Round O, South Carolina, are January, March and November, with an average relative humidity of 72%.

How many days does it rain in Round O?

In Round O, 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 Round O?

Months with snowfall in Round O are January and February.

What is the snowiest month in Round O?

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

How many days does it snow in Round O?

Throughout the year, in Round O, there are 0.8 snowfall days, and 0.24" (6mm) of snow is accumulated.

What are the months with the lowest UV index in Round O?

The months with the lowest UV index in Round O are January and December, with an average maximum UV index of 3.

When it does not snow in Round O?

In Round O, snow does not fall in March through December.

When is Daylight Saving Time (DST) in Round O?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.

When are the longest days in Round O?

The month with the longest days is June, with an average of 14h and 17min of daylight.

What is the month with the highest UV index in Round O?

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

What is the warmest month in Round O?

The warmest month in Round O is July, with an average high-temperature of 91.8°F (33.2°C) and an average low-temperature of 73.4°F (23°C).

What month has the most sunshine in Round O?

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

What is the most humid month in Round O?

August and December, with an average relative humidity of 77%, are most humid months.

What is the rainiest month in Round O?

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

What is the driest month in Round O?

The month with the least rainfall in Round O is November, when the rain falls for 6.2 days and typically collects 0.75" (19mm) of precipitation.

What is the month with the shortest days in Round O?

The month with the shortest days in Round O is December, with an average of 10h and 1min of daylight.

What is the month with the least sunshine in Round O?

December has the least sunshine of the year in Round O, with an average of 5.5h of sunshine.

Average temperature
Round O, SC

Average temperature - Round O, 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
Round O, SC

Average pressure - Round O, 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
Round O, SC

Average wind speed - Round O, 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
Round O, SC

Average humidity - Round O, 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
Round O, SC

Average rainfall - Round O, 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
Round O, SC

Average rainfall days - Round O, 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
Round O, SC

Average snowfall - Round O, 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
Round O, SC

Average snowfall days - Round O, 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
Round O, SC

Average daylight / Average sunshine - Round O, SC

The month with the longest days is June (Average daylight: 14h and 17min).
The month with the shortest days is December (Average daylight: 10h and 1min).

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
Round O, SC

Average sunshine days - Round O, 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 visibility
Round O, SC

Average visibility - Round O, 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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