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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, the same as December, in Round O, South Carolina, is another refreshing winter month, with an average temperature varying between 56.1°F (13.4°C) and 39.9°F (4.4°C). January is the month that records the lowest temperatures, with averages ranging from a high of 56.1°F (13.4°C) to a low of 39.9°F (4.4°C). Weather in January »
Weather in February
The last month of the winter, February, is a refreshing month in Round O, South Carolina, with an average temperature fluctuating between 43°F (6.1°C) and 60.8°F (16°C). February brings a marginal elevation to a comfortable 60.8°F (16°C) from January's 56.1°F (13.4°C) in Round O's average high-temperatures. 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 48.7°F (9.3°C) and 67.6°F (19.8°C). March comes with a subtle rise, with the average high-temperature adjusting from a comfortable 60.8°F (16°C) in February to a still enjoyable 67.6°F (19.8°C). Weather in March »
Weather in April
April in Round O, South Carolina, is a warm spring month, with an average temperature fluctuating between 56.7°F (13.7°C) and 75.7°F (24.3°C). As April arrives, Round O's weather shows a minor increase in high-temperatures, edging from March's refreshing 67.6°F (19.8°C) to a warm 75.7°F (24.3°C). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Round O, South Carolina, with an average temperature fluctuating between 82.8°F (28.2°C) and 64.2°F (17.9°C). Round O's transition into May is noticed by a slight rise in the average high-temperature, advancing 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 tropical 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). As Round O welcomes June, the average high-temperature displays a subtle shift, adjusting from a warm 82.8°F (28.2°C) in May to a hot 89.1°F (31.7°C). Weather in June »
Weather in July
July, like June, is another tropical summer month in Round O, South Carolina, with an average temperature ranging between min 73.4°F (23°C) and max 91.8°F (33.2°C). July is the month when Round O, South Carolina, sees the highest average temperatures, with a high of 91.8°F (33.2°C) and a low of 73.4°F (23°C). Throughout July, the heat index is computed to be a life-threatening hot 114.8°F (46°C). Weather in July »
Weather in August
August, the last month of the summer in Round O, is also a hot month, with an average temperature ranging between min 73.2°F (22.9°C) and max 90.5°F (32.5°C). Entering August, Round O's average high-temperature reads a still tropical 90.5°F (32.5°C), indicating a close resemblance to the previous month's climate. 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 ranging between min 68.5°F (20.3°C) and max 85.6°F (29.8°C). Round O records an average high-temperature of a warm 85.6°F (29.8°C) as September arrives, nearly mirroring the previous month's climate. Weather in September »
Weather in October
October, the same as September, is another warm autumn month in Round O, South Carolina, with an average temperature fluctuating between 58.5°F (14.7°C) and 76.5°F (24.7°C). As October commences, the average high-temperature shows a reduction, transitioning from 85.6°F (29.8°C) in September to a still moderately hot 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 65.8°F (18.8°C) and 47.7°F (8.7°C). The arrival of November corresponds with a shift in temperature, down from a moderately hot 76.5°F (24.7°C) in October to a comfortable 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 fluctuating between 60.1°F (15.6°C) and 44.1°F (6.7°C). December ushers in a minute temperature change, with average high-temperatures reducing from November's enjoyable 65.8°F (18.8°C) to a moderate 60.1°F (15.6°C). Weather in December »
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
Round O's January weather, with an average high temperature of 56.1°F (13.4°C) and an average low temperature of 39.9°F (4.4°C), tends to be the coldest of the year.
What are the least humid months?
The months with the lowest humidity are January, March and November, with an average relative humidity of 72%.
How many days does it rain?
In Round O, during the entire year, the rain falls for 149.7 days and collects up to 21.5" (546mm) of precipitation.
When does it snow?
Months with snowfall are January and February.
What is the snowiest month?
The months with the most snowfall are January and February, with an average 0.12" (3mm) of accumulated snow.
How many days does it snow?
Throughout the year, there are 0.8 snowfall days, and 0.24" (6mm) of snow is accumulated.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 3.
When it does not snow?
March through December are months without snowfall.
When is Daylight Saving Time (DST) in Round O?
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 are the longest days?
The month with the longest days is June, with an average of 14h and 18min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 7.
What are the warmest months?
Round O, South Carolina, registers the average highest temperatures during July, with peaks of 91.8°F (33.2°C) and lows of 73.4°F (23°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.9h of sunshine.
What are the most humid months?
August and December, with an average relative humidity of 77%, are most humid months in Round O.
What is the rainiest month?
August is the month with the most rainfall. Rain falls for 20.2 days and accumulates 3.15" (80mm) of precipitation.
What is the driest month?
The month with the least rainfall 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?
With an average of 10h and 0min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 5.5h of sunshine.
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).
Average pressure
Round O, SC
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed
Round O, SC
- Average wind speed in January:
6.1mph - Average wind speed in February:
6.3mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.7mph - Average wind speed in May:
6mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.3mph - Average wind speed in October:
5.7mph - Average wind speed in November:
5.7mph - Average wind speed in December:
5.7mph
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).
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%).
Average rainfall
Round O, SC
- Average rainfall in January:
0.87" - Average rainfall in February:
1.3" - Average rainfall in March:
1.54" - Average rainfall in April:
1.65" - Average rainfall in May:
1.61" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.36" - Average rainfall in August:
3.15" - Average rainfall in September:
1.89" - Average rainfall in October:
1.85" - Average rainfall in November:
0.75" - Average rainfall in December:
1.97"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days
Round O, SC
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
11.2 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
21.1 days - Average rainfall days in August:
20.2 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
8.3 days - Average rainfall days in November:
6.2 days - Average rainfall days in December:
9 days
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).
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").
Average snowfall days
Round O, SC
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
0.2 days - Average snowfall days in March:
0.1 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
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).
Average daylight / Average sunshine
Round O, SC
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 0min
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).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 5min - Average sunshine in March:
7h and 3min - Average sunshine in April:
9h and 3min - Average sunshine in May:
10h and 1min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 3min
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).
Average sunshine days
Round O, SC
- Average sunshine days in January:
21 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
19 days - Average sunshine days in April:
17.5 days - Average sunshine days in May:
14.2 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
6.9 days - Average sunshine days in August:
7.3 days - Average sunshine days in September:
13.5 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
19.8 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (6.9 days).
Average UV index
Round O, 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).
Average cloud cover
Round O, SC
The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 29).
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).