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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, is another fresh winter month in South Sumter, South Carolina, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 52.9°F (11.6°C). January, noted for its average high-temperature of 52.9°F (11.6°C) and an average low-temperature of 38.1°F (3.4°C), is considered the coldest month. Weather in January »
Weather in February
February, the last month of the winter in South Sumter, is a refreshing month, with temperature in the range of an average low of 41°F (5°C) and an average high of 57.7°F (14.3°C). The advent of February brings an average high-temperature of a refreshing 57.7°F (14.3°C), exhibiting minor difference from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in South Sumter, South Carolina, with an average temperature fluctuating between 63.9°F (17.7°C) and 46.6°F (8.1°C). The arrival of March introduces a minor uplift in high-temperatures, adjusting from 57.7°F (14.3°C) in February to a still refreshing 63.9°F (17.7°C). Weather in March »
Weather in April
April is a moderately hot spring month in South Sumter, South Carolina, with an average temperature fluctuating between 55°F (12.8°C) and 73.4°F (23°C). With the beginning of April, South Sumter's average high-temperature sees an increase, transitioning from a refreshing 63.9°F (17.7°C) in March to a moderately hot 73.4°F (23°C). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in South Sumter, South Carolina, with an average temperature fluctuating between 80.2°F (26.8°C) and 62.8°F (17.1°C). The shift into May is characterized by a subtle rise in the average high-temperature, transitioning from April's 73.4°F (23°C) to a still moderately hot 80.2°F (26.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a tropical month in South Sumter, South Carolina, with temperature in the range of an average low of 70°F (21.1°C) and an average high of 87.4°F (30.8°C). The coming of June brings a minor shift in South Sumter's weather, with average high-temperatures adjusting from May's warm 80.2°F (26.8°C) to a hot 87.4°F (30.8°C). Weather in June »
Weather in July
July, like June, is another tropical summer month in South Sumter, South Carolina, with an average temperature varying between 90.7°F (32.6°C) and 72.9°F (22.7°C). The highest temperatures are recorded in July, with averages reaching a high of 90.7°F (32.6°C) and a low of 72.9°F (22.7°C). The heat index value during July is estimated at a blistering 109.4°F (43°C). Weather in July »
Weather in August
The last month of the summer, August, is another tropical month in South Sumter, South Carolina, with an average temperature ranging between min 71.4°F (21.9°C) and max 88.9°F (31.6°C). As South Sumter transitions from July to August, the average high-temperatures adjust to a still tropical 88.9°F (31.6°C), nearly the same as the previous 90.7°F (32.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in South Sumter, South Carolina, with temperature in the range of an average low of 66.6°F (19.2°C) and an average high of 83.7°F (28.7°C). Transitioning into September, South Sumter experiences an average high-temperature of a moderately hot 83.7°F (28.7°C), marking a minor shift from the preceding month. Weather in September »
Weather in October
October, like September, in South Sumter, South Carolina, is another warm autumn month, with an average temperature varying between 56.7°F (13.7°C) and 73.8°F (23.2°C). In October, the average high-temperature decreases from 83.7°F (28.7°C) in September to a still warm 73.8°F (23.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is another refreshing month in South Sumter, South Carolina, with an average temperature varying between 46.4°F (8°C) and 62.4°F (16.9°C). With the onset of November, South Sumter experiences a modest temperature adjustment, with the average high-temperature receding from a moderately hot 73.8°F (23.2°C) in October to a comfortable 62.4°F (16.9°C). Weather in November »
Weather in December
December, the first month of the winter in South Sumter, is still a refreshing month, with an average temperature ranging between max 56.3°F (13.5°C) and min 42.3°F (5.7°C). The average high-temperature shows a slight dip in December, from November's comfortable 62.4°F (16.9°C) to a mild 56.3°F (13.5°C). Weather in December »
Updated: Aug 4, 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 time of year?
January, with an average high of 52.9°F (11.6°C) and a low of 38.1°F (3.4°C), signifies the coldest month of the year.
What are the least humid months?
January and November, with an average relative humidity of 70%, are the least humid months.
What is the driest month?
January is the month with the least rainfall. Rain falls for 10.5 days and accumulates 1.89" (48mm) of precipitation.
How many days does it rain?
In South Sumter, during the entire year, the rain falls for 161.8 days and collects up to 33.35" (847mm) of precipitation.
When does it snow?
January through March, November and December are months with snowfall.
How many days does it snow?
Throughout the year, there are 1.3 snowfall days, and 1.06" (27mm) of snow is accumulated.
What is the month with the lowest UV index?
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 0.6 days and accumulates 0.55" (14mm) 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?
April through October are months without snowfall.
What is the most humid month?
The most humid month is May, with an average relative humidity of 76%.
When are the longest days in South Sumter?
The month with the longest days in South Sumter is June, with an average of 14h and 24min of daylight.
What are the months with the highest UV index?
June and July, with an average maximum UV index of 7, are months with the highest UV index.
What is the hottest time of year?
The highest temperatures are recorded in July, with averages reaching a high of 90.7°F (32.6°C) and a low of 72.9°F (22.7°C).
What month has the most sunshine?
With an average of 10.7h of sunshine, July has the most sunshine of the year in South Sumter.
What is the wettest month?
December is the month with the most rainfall. Rain falls for 11 days and accumulates 3.58" (91mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year in South Sumter, with an average of 9h and 54min of daylight.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 5.3h of sunshine.
Average temperature
South Sumter, SC
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (52.9°F).
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure
South Sumter, 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:
30.02"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed
South Sumter, SC
- Average wind speed in January:
8mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.5mph
The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity
South Sumter, SC
The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are January and November (70%).
Average rainfall
South Sumter, SC
- Average rainfall in January:
1.89" - Average rainfall in February:
2.44" - Average rainfall in March:
2.13" - Average rainfall in April:
3.19" - Average rainfall in May:
3.35" - Average rainfall in June:
3.11"
- Average rainfall in July:
3.23" - Average rainfall in August:
3.5" - Average rainfall in September:
2.48" - Average rainfall in October:
2.48" - Average rainfall in November:
1.97" - Average rainfall in December:
3.58"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days
South Sumter, SC
- Average rainfall days in January:
10.5 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
12.9 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
17.1 days
- Average rainfall days in July:
20.1 days - Average rainfall days in August:
18.7 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is October (8.5 days).
Average snowfall
South Sumter, SC
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
South Sumter, SC
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
0.6 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:
0.1 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
South Sumter, SC
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - 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 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 3min - Average sunshine in February:
6h and 2min - Average sunshine in March:
7h and 2min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 4min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 4min - 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:
5h and 5min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days
South Sumter, SC
- Average sunshine days in January:
19.2 days - Average sunshine days in February:
16 days - Average sunshine days in March:
17.3 days - Average sunshine days in April:
14 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
8.8 days - Average sunshine days in August:
8.9 days - Average sunshine days in September:
13.5 days - Average sunshine days in October:
20.8 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
18.8 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (8.8 days).
Average UV index
South Sumter, SC
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover
South Sumter, SC
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility
South Sumter, SC
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).