Climate and monthly weather forecastJoanna, SC
Climate and monthly weather forecast
Weather in January
January, the same as December, is a cool winter month in Joanna, South Carolina, with an average temperature fluctuating between 51.3°F (10.7°C) and 34.7°F (1.5°C). Joanna's January weather, marked by an average high temperature of 51.3°F (10.7°C) and an average low temperature of 34.7°F (1.5°C), is the coldest in the year. Weather in January »Weather in February
February, the last month of the winter in Joanna, is a refreshing month, with an average temperature fluctuating between 55.4°F (13°C) and 37.9°F (3.3°C). Joanna indicates an average high-temperature of a refreshing 55.4°F (13°C) in February, showing minor variation from January's 51.3°F (10.7°C). Weather in February »Weather in March
March, the first month of the spring in Joanna, is an enjoyable month, with temperature in the range of an average high of 63°F (17.2°C) and an average low of 44.1°F (6.7°C). Observing a minor shift, the average high-temperature during March adjusts from February's refreshing 55.4°F (13°C) to an enjoyable 63°F (17.2°C). Weather in March »Weather in April
April in Joanna, South Carolina, is an agreeable spring month, with an average temperature ranging between min 52.3°F (11.3°C) and max 73°F (22.8°C). April's onset brings a rise in the average high-temperature, moving from an enjoyable 63°F (17.2°C) in March to a pleasant 73°F (22.8°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Joanna, South Carolina, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 80.8°F (27.1°C). May's arrival coincides with a subtle temperature rise, moving from April's agreeable 73°F (22.8°C) to a warm 80.8°F (27.1°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Joanna, South Carolina, with an average temperature ranging between min 67.5°F (19.7°C) and max 88.5°F (31.4°C). Joanna's weather shows a minor temperature rise with the arrival of June, moving from a warm 80.8°F (27.1°C) in May to a hot 88.5°F (31.4°C). Weather in June »Weather in July
July, like June, is another tropical summer month in Joanna, South Carolina, with an average temperature ranging between max 91.8°F (33.2°C) and min 70.3°F (21.3°C). July is the warmest month of the year, registering average temperatures as high as 91.8°F (33.2°C) and as low as 70.3°F (21.3°C). July's mean heat index is appraised at a blisteringly hot 111.2°F (44°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in Joanna, South Carolina, with an average temperature ranging between max 90°F (32.2°C) and min 69.4°F (20.8°C). Joanna's weather, upon August's arrival, documents an average high-temperature of a still hot 90°F (32.2°C), nearly identical to the prior month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Joanna, South Carolina, with an average temperature ranging between max 84.4°F (29.1°C) and min 64.4°F (18°C). In the transition to September, Joanna observes a minor drop in the average high-temperature, shifting from a hot 90°F (32.2°C) in August to a moderately hot 84.4°F (29.1°C). Weather in September »Weather in October
October, the same as September, in Joanna, South Carolina, is another pleasant autumn month, with an average temperature ranging between min 53.1°F (11.7°C) and max 72.7°F (22.6°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 84.4°F (29.1°C) in September to a pleasant 72.7°F (22.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also an enjoyable month in Joanna, South Carolina, with an average temperature fluctuating between 43.3°F (6.3°C) and 61.3°F (16.3°C). In November, the average high-temperature goes from an agreeable 72.7°F (22.6°C) in October to a refreshing 61.3°F (16.3°C). Weather in November »Weather in December
The first month of the winter, December, is also a fresh month in Joanna, South Carolina, with an average temperature fluctuating between 39.7°F (4.3°C) and 54.5°F (12.5°C). A subtle change in temperatures is noted as November gives way to December, with average highs reducing from a refreshing 61.3°F (16.3°C) to a cool 54.5°F (12.5°C). Weather in December »Updated: Jul 12, 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
With average high temperatures of 51.3°F (10.7°C) and lows of 34.7°F (1.5°C), January is the coldest month.
In Joanna, during the entire year, the rain falls for 150.3 days and collects up to 31.85" (809mm) of precipitation.
January through March and December are months with snowfall.
Throughout the year, there are 2.4 snowfall days, and 2.36" (60mm) of snow is accumulated.
With an average maximum UV index of 2, January is the month with the lowest UV index.
February is the month with the most snowfall. Snow falls for 0.9 days and accumulates 0.98" (25mm) of snow.
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.
In Joanna, snow does not fall in April through November.
The month with the longest days is June, with an average of 14h and 24min of daylight.
With an average maximum UV index of 7, June is the month with the highest UV index.
July is the warmest month in Joanna, with an average high-temperature of 91.8°F (33.2°C) and an average low-temperature of 70.3°F (21.3°C).
With an average relative humidity of 70%, July is the least humid month.
With an average of 10.7h of sunshine, July has the most sunshine of the year.
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.69" (43mm) of precipitation.
The most humid month is December, with an average relative humidity of 77%.
The month with the most rainfall is December, when the rain falls for 11.3 days and typically aggregates up to 3.54" (90mm) of precipitation.
With an average of 9h and 54min of daylight, December has the shortest days of the year.
The month with the least sunshine is December, with an average of 5.2h of sunshine.
Average temperature
Joanna, 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 (51.3°F).
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure
Joanna, 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:
30.03"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.05"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 (29.98"Hg).
Average wind speed
Joanna, SC
- Average wind speed in January:
7.1mph - Average wind speed in February:
7.3mph - Average wind speed in March:
7.2mph - Average wind speed in April:
7.4mph - Average wind speed in May:
6mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.6mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.3mph - Average wind speed in December:
6.7mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity
Joanna, SC
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall
Joanna, SC
- Average rainfall in January:
2.64" - Average rainfall in February:
2.72" - Average rainfall in March:
2.48" - Average rainfall in April:
2.76" - Average rainfall in May:
2.99" - Average rainfall in June:
2.36"
- Average rainfall in July:
2.72" - Average rainfall in August:
3.35" - Average rainfall in September:
1.69" - Average rainfall in October:
2.09" - Average rainfall in November:
2.52" - Average rainfall in December:
3.54"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days
Joanna, SC
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
13.9 days
- Average rainfall days in July:
16 days - Average rainfall days in August:
16.5 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
9 days - Average rainfall days in November:
9 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is August (16.5 days).
The months with the least rainy days are October and November (9 days).
Average snowfall
Joanna, SC
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Joanna, SC
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
0.9 days - Average snowfall days in March:
0.3 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:
0.4 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Joanna, 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 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - 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 24min - Average sunshine in February:
6h and 30min - Average sunshine in March:
7h and 6min - Average sunshine in April:
8h and 48min - Average sunshine in May:
9h and 36min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 24min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 12min
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 12min).
Average sunshine days
Joanna, SC
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
15.5 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
15.2 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
12.5 days - Average sunshine days in September:
17 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
18.8 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (12 days).
Average UV index
Joanna, SC
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Joanna, SC
The months with the most cloud cover are February and December (Cloud cover 44).
The months with the least cloud cover are June, July and October (Cloud cover 31).
Average visibility
Joanna, 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).
