Climate and monthly weather forecastWilliams, SC
Climate and monthly weather forecast
Weather in January
January, like December, is another refreshing winter month in Williams, South Carolina, with an average temperature varying between 56.1°F (13.4°C) and 39.9°F (4.4°C). January is the coldest month, exhibiting average temperatures of 56.1°F (13.4°C) at the peak and 39.9°F (4.4°C) at the base. Weather in January »Weather in February
February, the last month of the winter in Williams, is a refreshing month, with temperature in the range of an average high of 60.8°F (16°C) and an average low of 43°F (6.1°C). The advent of February observes an average high-temperature of an enjoyable 60.8°F (16°C), nearly identical to January's 56.1°F (13.4°C). Weather in February »Weather in March
The first month of the spring, March, is also an enjoyable month in Williams, South Carolina, with an average temperature varying between 67.6°F (19.8°C) and 48.7°F (9.3°C). The arrival of March signals a slight increase in the average high-temperature, moving from 60.8°F (16°C) in February to a still refreshing 67.6°F (19.8°C). Weather in March »Weather in April
April is a moderately hot spring month in Williams, South Carolina, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 75.7°F (24.3°C). Williams's transition into April brings a slight rise in the average high-temperature, moving from a refreshing 67.6°F (19.8°C) in March to a warm 75.7°F (24.3°C). Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Williams, South Carolina, with an average temperature varying between 64.2°F (17.9°C) and 82.8°F (28.2°C). As May sets, the average high-temperature shows a slight increase, moving up 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
June, the first month of the summer in Williams, is a hot month, with an average temperature fluctuating between 89.1°F (31.7°C) and 71.2°F (21.8°C). The shift from May to June sees a slight increase in the average high-temperature, transitioning from a moderately hot 82.8°F (28.2°C) 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 fluctuating between 73.4°F (23°C) and 91.8°F (33.2°C). Temperature records mark July as the warmest month, with highs averaging 91.8°F (33.2°C) and lows at 73.4°F (23°C). During July, the heat index is estimated at a burning hot 114.8°F (46°C). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Williams, South Carolina, with an average temperature fluctuating between 73.2°F (22.9°C) and 90.5°F (32.5°C). At the start of August, Williams's average high-temperature reaches a still tropical 90.5°F (32.5°C), subtly different from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Williams, South Carolina, with an average temperature ranging between min 68.5°F (20.3°C) and max 85.6°F (29.8°C). With the transition into September, Williams notes an average high-temperature of a warm 85.6°F (29.8°C), closely resembling August. Weather in September »Weather in October
October, like September, in Williams, South Carolina, is another warm autumn month, with an average temperature fluctuating between 76.5°F (24.7°C) and 58.5°F (14.7°C). In October, the meteorological conditions alter, with the average high-temperature shifting 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
November, the last month of the autumn in Williams, is also an enjoyable month, with temperature in the range of an average low of 47.7°F (8.7°C) and an average high of 65.8°F (18.8°C). The arrival of November signals a shift in temperature, down 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 temperature in the range of an average high of 60.1°F (15.6°C) and an average low of 44.1°F (6.7°C). December sees a slight reduction in average high-temperature, with a shift from a comfortable 65.8°F (18.8°C) in November to a moderate 60.1°F (15.6°C). Weather in December »Updated: Aug 27, 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
January is the month when Williams experiences its coldest temperatures, averaging a high of 56.1°F (13.4°C) and a low of 39.9°F (4.4°C).
January, March and November, with an average relative humidity of 72%, are the least humid months.
In Williams, during the entire year, the rain falls for 149.7 days and collects up to 21.5" (546mm) of precipitation.
Months with snowfall in Williams are January and February.
The months with the most snowfall are January and February, with an average 0.12" (3mm) of accumulated snow.
Throughout the year, there are 0.8 snowfall days, and 0.24" (6mm) of snow is accumulated.
The months with the lowest UV index are January and December, with an average maximum UV index of 3.
In Williams, snow does not fall in March through December.
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.
With an average of 14h and 18min of daylight, June has the longest days of the year.
June through August, with an average maximum UV index of 7, are months with the highest UV index.
July, with its average high-temperature of 91.8°F (33.2°C) and an average low-temperature of 73.4°F (23°C), holds the record as the warmest month.
July has the most sunshine of the year, with an average of 10.9h of sunshine.
The months with the highest humidity are August and December, with an average relative humidity of 77%.
The month with the most rainfall is August, when the rain falls for 20.2 days and typically aggregates up to 3.15" (80mm) of precipitation.
November is the month with the least rainfall. Rain falls for 6.2 days and accumulates 0.75" (19mm) of precipitation.
With an average of 10h and 0min of daylight, December has the shortest days of the year.
The month with the least sunshine in Williams is December, with an average of 5.5h of sunshine.
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).
Average pressure
Williams, 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
Williams, 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
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%).
Average rainfall
Williams, 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
Williams, 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
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").
Average snowfall days
Williams, 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
Williams, SC
- Average daylight in January:
10h and 18min - 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 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 30min - 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 48min - Average sunshine in February:
6h and 48min - Average sunshine in March:
7h and 30min - Average sunshine in April:
9h and 30min - Average sunshine in May:
10h and 6min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 42min - Average sunshine in October:
6h and 36min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 30min
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
Williams, 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
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).
Average cloud cover
Williams, 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
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).
