Climate and monthly weather forecastJohnsonville, SC
Climate and monthly weather forecast
Weather in January
January, the same as December, is another fresh winter month in Johnsonville, South Carolina, with temperature in the range of an average high of 53.8°F (12.1°C) and an average low of 37.6°F (3.1°C). Johnsonville reaches its lowest average temperatures in January, measuring 53.8°F (12.1°C) at the peak and 37.6°F (3.1°C) at the lowest. Weather in January »Weather in February
The last month of the winter, February, is a refreshing month in Johnsonville, South Carolina, with temperature in the range of an average low of 40.5°F (4.7°C) and an average high of 57.9°F (14.4°C). With the advent of February, Johnsonville's high-temperatures adjust to a refreshing 57.9°F (14.4°C), closely aligning with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a comfortable month in Johnsonville, South Carolina, with an average temperature varying between 63.9°F (17.7°C) and 46.4°F (8°C). March's arrival coincides with a subtle temperature rise, moving from February's 57.9°F (14.4°C) to a still refreshing 63.9°F (17.7°C). Weather in March »Weather in April
April is an agreeable spring month in Johnsonville, South Carolina, with an average temperature varying between 55.2°F (12.9°C) and 72.9°F (22.7°C). An upsurge in temperatures occurs as March gives way to April, with average highs shifting from an enjoyable 63.9°F (17.7°C) to an agreeable 72.9°F (22.7°C). Weather in April »Weather in May
May, the last month of the spring in Johnsonville, is a warm month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 79.7°F (26.5°C). May's arrival signals a subtle increase in average high-temperatures, moving from April's pleasant 72.9°F (22.7°C) to a moderately hot 79.7°F (26.5°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Johnsonville, South Carolina, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 86.5°F (30.3°C). The onset of June introduces a subtle rise in the average high-temperature, nudging from a moderately hot 79.7°F (26.5°C) in May to a hot 86.5°F (30.3°C). Weather in June »Weather in July
July, like June, is another hot summer month in Johnsonville, South Carolina, with temperature in the range of an average low of 73°F (22.8°C) and an average high of 89.8°F (32.1°C). July, known for its average high temperature of 89.8°F (32.1°C) and an average low temperature of 73°F (22.8°C), is the warmest month. July's mean heat index is appraised at a blisteringly hot 109.4°F (43°C). Weather in July »Weather in August
August, the last month of the summer in Johnsonville, is another tropical month, with an average temperature fluctuating between 72.1°F (22.3°C) and 88.5°F (31.4°C). With the onset of August, the average high-temperature stands at a still hot 88.5°F (31.4°C), closely aligned with July's 89.8°F (32.1°C). Weather in August »Weather in September
September, the first month of the autumn in Johnsonville, is also a moderately hot month, with an average temperature varying between 83.7°F (28.7°C) and 67.1°F (19.5°C). With September's arrival, Johnsonville notes an average high-temperature of a warm 83.7°F (28.7°C), closely following the trend of the preceding month. Weather in September »Weather in October
October, like September, in Johnsonville, South Carolina, is a moderately hot autumn month, with an average temperature fluctuating between 56.8°F (13.8°C) and 74.3°F (23.5°C). In Johnsonville, the average high-temperature in October drops from a moderately hot 83.7°F (28.7°C) in September to a still warm 74.3°F (23.5°C). Weather in October »Weather in November
November, the last month of the autumn in Johnsonville, is also an enjoyable month, with an average temperature ranging between min 46.2°F (7.9°C) and max 63.5°F (17.5°C). The arrival of November signals a shift in temperature, down from a warm 74.3°F (23.5°C) in October to a refreshing 63.5°F (17.5°C). Weather in November »Weather in December
December, the first month of the winter in Johnsonville, is also a moderate month, with an average temperature varying between 42.3°F (5.7°C) and 57.4°F (14.1°C). December marks a gentle change in average high-temperature, declining from November's refreshing 63.5°F (17.5°C) to a moderate 57.4°F (14.1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Johnsonville, SC
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (53.8°F).
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).
Average pressure
Johnsonville, 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
Johnsonville, SC
- Average wind speed in January:
6.5mph - Average wind speed in February:
7.2mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6.1mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.1mph - Average wind speed in December:
6.1mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Johnsonville, SC
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (74%).
Average rainfall
Johnsonville, SC
- Average rainfall in January:
0.91" - Average rainfall in February:
1.26" - Average rainfall in March:
1.18" - Average rainfall in April:
1.85" - Average rainfall in May:
2.36" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.05" - Average rainfall in August:
2.83" - Average rainfall in September:
1.89" - Average rainfall in October:
1.5" - Average rainfall in November:
1.26" - Average rainfall in December:
2.56"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days
Johnsonville, SC
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
12.1 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.8 days - Average rainfall days in August:
16.9 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
8.1 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (7.7 days).
Average snowfall
Johnsonville, 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
Johnsonville, SC
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0.3 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 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight / Average sunshine
Johnsonville, SC
- Average daylight in January:
10h and 12min - 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 24min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
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 36min - Average sunshine in February:
6h and 18min - Average sunshine in March:
7h and 30min - Average sunshine in April:
9h and 36min - Average sunshine in May:
9h and 54min - 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:
9h and 18min - Average sunshine in October:
6h and 24min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days
Johnsonville, SC
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
17 days - Average sunshine days in March:
18.3 days - Average sunshine days in April:
14.9 days - Average sunshine days in May:
13.2 days - Average sunshine days in June:
9.9 days
- Average sunshine days in July:
8.9 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
21.2 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (8.9 days).
Average UV index
Johnsonville, 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, February and December (UV index 3).
Average cloud cover
Johnsonville, SC
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility
Johnsonville, 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).





