Climate and monthly weather forecastSwannanoa, NC
Climate and monthly weather forecast
Weather in January
January, the same as December, in Swannanoa, North Carolina, is another chilly winter month, with an average temperature ranging between min 27.7°F (-2.4°C) and max 43.5°F (6.4°C). Swannanoa witnesses the coldest weather in January, with temperatures averaging a high of 43.5°F (6.4°C) and a low of 27.7°F (-2.4°C). Weather in January »Weather in February
February, the last month of the winter in Swannanoa, is another chilly month, with an average temperature ranging between max 48.7°F (9.3°C) and min 31.3°F (-0.4°C). February's presence records an average high-temperature of a still chilly 48.7°F (9.3°C), closely mirroring January's climate. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Swannanoa, North Carolina, with an average temperature varying between 37.2°F (2.9°C) and 55.2°F (12.9°C). March showcases a minor temperature ascent, adjusting from February's frosty 48.7°F (9.3°C) to a cool 55.2°F (12.9°C). Weather in March »Weather in April
April is a comfortable spring month in Swannanoa, North Carolina, with an average temperature fluctuating between 45.1°F (7.3°C) and 65.1°F (18.4°C). The start of April is characterized by an increase in the average high-temperature, transitioning from a fresh 55.2°F (12.9°C) in March to a comfortable 65.1°F (18.4°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Swannanoa, North Carolina, with an average temperature varying between 52.3°F (11.3°C) and 73.4°F (23°C). May showcases a minor temperature ascent, adjusting from April's enjoyable 65.1°F (18.4°C) to a warm 73.4°F (23°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Swannanoa, North Carolina, with an average temperature fluctuating between 81.3°F (27.4°C) and 58.3°F (14.6°C). The shift from May to June introduces a subtle increase in the average high-temperature, moving from a warm 73.4°F (23°C) to a still moderately hot 81.3°F (27.4°C). Weather in June »Weather in July
July, like June, in Swannanoa, North Carolina, is a moderately hot summer month, with an average temperature varying between 83.8°F (28.8°C) and 61.5°F (16.4°C). Swannanoa's July weather, with an average high temperature of 83.8°F (28.8°C) and an average low temperature of 61.5°F (16.4°C), tends to be the warmest of the year. The heat index for July is evaluated at a hot 91.4°F (33°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Swannanoa, North Carolina, with an average temperature ranging between max 82.4°F (28°C) and min 60.4°F (15.8°C). Swannanoa registers an average high-temperature of a still moderately hot 82.4°F (28°C) with the arrival of August, showing minor deviation from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Swannanoa, North Carolina, with temperature in the range of an average low of 55.8°F (13.2°C) and an average high of 77.4°F (25.2°C). In September, Swannanoa experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 77.4°F (25.2°C), closely mirroring the climate in August. Weather in September »Weather in October
October, like September, in Swannanoa, North Carolina, is another enjoyable autumn month, with an average temperature ranging between max 66.6°F (19.2°C) and min 46.6°F (8.1°C). As October begins, there is a decrease in the average high-temperature, falling from a warm 77.4°F (25.2°C) in September to a refreshing 66.6°F (19.2°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Swannanoa, North Carolina, with an average temperature fluctuating between 54.9°F (12.7°C) and 37.2°F (2.9°C). The onset of November brings a small change in high-temperatures, falling from an enjoyable 66.6°F (19.2°C) in October to a fresh 54.9°F (12.7°C). Weather in November »Weather in December
December, the first month of the winter in Swannanoa, is also a frosty month, with an average temperature ranging between min 33.3°F (0.7°C) and max 48°F (8.9°C). December's onset brings a negligible change in high-temperatures, falling from a fresh 54.9°F (12.7°C) in November to a frosty 48°F (8.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Swannanoa, NC
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (43.5°F).
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure
Swannanoa, NC
- Average pressure in January:
30.15"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:
30.02"Hg - Average pressure in August:
30.02"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed
Swannanoa, NC
- Average wind speed in January:
6.2mph - Average wind speed in February:
6.2mph - Average wind speed in March:
6mph - Average wind speed in April:
6.2mph - Average wind speed in May:
4.9mph - Average wind speed in June:
4.1mph
- Average wind speed in July:
3.7mph - Average wind speed in August:
3.4mph - Average wind speed in September:
3.8mph - Average wind speed in October:
4.9mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.6mph
The windiest months (with the highest average wind speed) are January, February and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity
Swannanoa, NC
The months with the highest relative humidity are May and September (78%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall
Swannanoa, NC
- Average rainfall in January:
2.4" - Average rainfall in February:
2.24" - Average rainfall in March:
2.05" - Average rainfall in April:
3.07" - Average rainfall in May:
2.83" - Average rainfall in June:
1.77"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.28" - Average rainfall in September:
1.54" - Average rainfall in October:
2.09" - Average rainfall in November:
2.13" - Average rainfall in December:
3.07"
The wettest months (with the highest rainfall) are April and December (3.07").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days
Swannanoa, NC
- Average rainfall days in January:
9.9 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
17 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
10.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.5 days).
Average snowfall
Swannanoa, NC
The month with the highest snowfall is December (4.37").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Swannanoa, NC
- Average snowfall days in January:
3.2 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0.3 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:
1.1 days - Average snowfall days in December:
1.7 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Swannanoa, NC
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
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 48min).
- Average sunshine in January:
5h and 42min - Average sunshine in February:
7h and 0min - Average sunshine in March:
7h and 24min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 48min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 24min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 12min - Average sunshine in December:
5h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days
Swannanoa, NC
- Average sunshine days in January:
18.4 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
12 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
10.4 days - Average sunshine days in August:
11.7 days - Average sunshine days in September:
14.8 days - Average sunshine days in October:
20.1 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (10.4 days).
Average UV index
Swannanoa, NC
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Swannanoa, NC
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility
Swannanoa, NC
The months with the highest visibility are June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October and December (5mi).





