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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
Weather in January
January, the same as December, in Duncan, South Carolina, is a frosty winter month, with temperature in the range of an average high of 48.9°F (9.4°C) and an average low of 32.9°F (0.5°C). Duncan records the coldest temperatures in January, averaging a high of 48.9°F (9.4°C) and a low of 32.9°F (0.5°C). Weather in January »
Weather in February
The last month of the winter, February, is a cool month in Duncan, South Carolina, with an average temperature fluctuating between 54.1°F (12.3°C) and 36.7°F (2.6°C). Duncan, South Carolina, observes a minor difference in average high-temperatures between January's 48.9°F (9.4°C) and February's 54.1°F (12.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a comfortable month in Duncan, South Carolina, with an average temperature varying between 61.3°F (16.3°C) and 42.6°F (5.9°C). The shift from February to March is marked by a slight increase in the average high-temperature, moving from a fresh 54.1°F (12.3°C) to a refreshing 61.3°F (16.3°C). Weather in March »
Weather in April
April is a pleasant spring month in Duncan, South Carolina, with an average temperature fluctuating between 71.4°F (21.9°C) and 51.1°F (10.6°C). The beginning of April marks a shift in the average high-temperature, moving from March's comfortable 61.3°F (16.3°C) to a pleasant 71.4°F (21.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Duncan, South Carolina, with an average temperature varying between 58.8°F (14.9°C) and 79.5°F (26.4°C). The shift from April to May introduces a subtle increase in the average high-temperature, moving from an agreeable 71.4°F (21.9°C) to a warm 79.5°F (26.4°C). Weather in May »
Weather in June
June, the first month of the summer in Duncan, is a tropical month, with an average temperature ranging between min 65.8°F (18.8°C) and max 88.3°F (31.3°C). June introduces a marginal temperature uplift, with average high-temperatures adjusting from May's warm 79.5°F (26.4°C) to a hot 88.3°F (31.3°C). Weather in June »
Weather in July
July, like June, is another tropical summer month in Duncan, South Carolina, with an average temperature varying between 69.1°F (20.6°C) and 91°F (32.8°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 91°F (32.8°C) and a low of 69.1°F (20.6°C). The heat index value for July is evaluated at a blisteringly hot 107.6°F (42°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Duncan, South Carolina, with an average temperature ranging between min 67.8°F (19.9°C) and max 89.2°F (31.8°C). Duncan observes a minor difference in average high-temperatures between July's 91°F (32.8°C) and August's 89.2°F (31.8°C). Weather in August »
Weather in September
September, the first month of the autumn in Duncan, is also a moderately hot month, with an average temperature fluctuating between 62.8°F (17.1°C) and 83.7°F (28.7°C). With September's onset, the weather reveals a slight temperature decrease, transitioning from a hot 89.2°F (31.8°C) in August to a moderately hot 83.7°F (28.7°C). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Duncan, South Carolina, with temperature in the range of an average high of 72.1°F (22.3°C) and an average low of 52°F (11.1°C). With October's arrival, Duncan's weather changes as the average high-temperature falls from a warm 83.7°F (28.7°C) in September to a pleasant 72.1°F (22.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is another refreshing month in Duncan, South Carolina, with an average temperature varying between 59.9°F (15.5°C) and 41.9°F (5.5°C). Duncan's November weather features a mild decline in high-temperatures, reducing from an agreeable 72.1°F (22.3°C) in October to a moderate 59.9°F (15.5°C). Weather in November »
Weather in December
December, the first month of the winter in Duncan, is also a fresh month, with an average temperature fluctuating between 52.5°F (11.4°C) and 38.3°F (3.5°C). As December commences, the average high-temperature subtly reduces, transitioning from a refreshing 59.9°F (15.5°C) in November to a cool 52.5°F (11.4°C). Weather in December »
Updated: Feb 13, 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 time of the year is the coldest in Duncan?
Duncan's January weather, marked by an average high temperature of 48.9°F (9.4°C) and an average low temperature of 32.9°F (0.5°C), is the coldest in the year.
How many days does it rain in Duncan?
Throughout the year, there are 141 rainfall days, and 28.5" (724mm) of precipitation is accumulated.
When does it snow in Duncan?
January through March, November and December are months with snowfall in Duncan.
How many days does it snow in Duncan?
In Duncan, South Carolina, during the entire year, snow falls for 3.9 days and aggregates up to 4.69" (119mm) of snow.
What is the month with the lowest UV index in Duncan?
The months with the lowest UV index in Duncan, South Carolina, are January and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST) in Duncan?
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 Duncan?
April through October are months without snowfall in Duncan, South Carolina.
What are the months with the highest UV index in Duncan?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Duncan?
With an average of 14h and 30min of daylight, June has the longest days of the year.
What is the hottest time of year in Duncan?
Temperature readings reach their annual highs in July, averaging 91°F (32.8°C) and a minimum average of 69.1°F (20.6°C).
What is the least humid month in Duncan?
The least humid month is July, with an average relative humidity of 67%.
What month has the most sunshine in Duncan?
The month with the most sunshine in Duncan, South Carolina, is July, with an average of 10.9h of sunshine.
What is the driest month in Duncan?
The month with the least rainfall is September, when the rain falls for 11.2 days and typically collects 1.38" (35mm) of precipitation.
What is the most humid month in Duncan?
The most humid month is December, with an average relative humidity of 76%.
What is the rainiest month in Duncan?
December is the month with the most rainfall in Duncan. Rain falls for 10 days and accumulates 3.35" (85mm) of precipitation.
What is the snowiest month in Duncan?
The month with the most snowfall in Duncan is December, when snow falls for 0.5 days and typically aggregates up to 2.2" (56mm) of snow.
What is the month with the shortest days in Duncan?
With an average of 9h and 54min of daylight, December has the shortest days of the year in Duncan, South Carolina.
What is the month with the least sunshine in Duncan?
With an average of 5.3h of sunshine, December has the least sunshine of the year.
Average temperature
Duncan, SC
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.9°F).
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure
Duncan, 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:
30.01"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed
Duncan, SC
- Average wind speed in January:
6.4mph - Average wind speed in February:
6.7mph - Average wind speed in March:
6.6mph - Average wind speed in April:
7mph - Average wind speed in May:
5.7mph - Average wind speed in June:
4.9mph
- Average wind speed in July:
4.6mph - Average wind speed in August:
4.3mph - Average wind speed in September:
5mph - Average wind speed in October:
5.8mph - Average wind speed in November:
5.8mph - Average wind speed in December:
6mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity
Duncan, SC
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (67%).
Average rainfall
Duncan, SC
- Average rainfall in January:
2.56" - Average rainfall in February:
2.36" - Average rainfall in March:
2.2" - Average rainfall in April:
2.64" - Average rainfall in May:
2.68" - Average rainfall in June:
2.17"
- Average rainfall in July:
2.13" - Average rainfall in August:
2.68" - Average rainfall in September:
1.38" - Average rainfall in October:
1.93" - Average rainfall in November:
2.44" - Average rainfall in December:
3.35"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days
Duncan, SC
- Average rainfall days in January:
9.2 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
13.4 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
15 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
10 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (8.2 days).
Average snowfall
Duncan, SC
The month with the highest snowfall is December (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Duncan, SC
- Average snowfall days in January:
1.2 days - Average snowfall days in February:
1.6 days - Average snowfall days in March:
0.4 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:
0.2 days - Average snowfall days in December:
0.5 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Duncan, SC
- Average daylight in January:
10h and 1min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 3min
- 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 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
6h and 4min - Average sunshine in March:
7h and 1min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 5min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 2min - 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days
Duncan, SC
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
16.2 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
14.6 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
22.3 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is August (13.3 days).
Average UV index
Duncan, SC
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 and December (UV index 2).
Average cloud cover
Duncan, SC
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 28).
Average visibility
Duncan, 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).
Duncan, South Carolina, USA
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