Climate and monthly weather forecastMountain Island, NC
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Mountain Island, North Carolina, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 32.5°F (0.3°C). With average temperatures fluctuating between a high of 47.8°F (8.8°C) and a low of 32.5°F (0.3°C), January stands out as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Mountain Island, is a fresh month, with an average temperature varying between 53.2°F (11.8°C) and 36°F (2.2°C). As January transitions into February, a subtle temperature shift is observed, with average highs adjusting from a frosty 47.8°F (8.8°C) to a cool 53.2°F (11.8°C). Weather in February »Weather in March
The first month of the spring, March, is a mild month in Mountain Island, North Carolina, with an average temperature fluctuating between 60.1°F (15.6°C) and 41.5°F (5.3°C). The onset of March brings a minor temperature shift, with the average high-temperature moving from a fresh 53.2°F (11.8°C) in February to a refreshing 60.1°F (15.6°C). Weather in March »Weather in April
April in Mountain Island, North Carolina, is an agreeable spring month, with an average temperature ranging between min 50.9°F (10.5°C) and max 70.3°F (21.3°C). Mountain Island's April weather brings a rise in high-temperatures, moving from a mild 60.1°F (15.6°C) in March to an agreeable 70.3°F (21.3°C). Weather in April »Weather in May
May, the last month of the spring in Mountain Island, is a warm month, with an average temperature varying between 59°F (15°C) and 79.2°F (26.2°C). As April transitions into May, Mountain Island notices a gentle rise in the average high-temperature, transitioning from a pleasant 70.3°F (21.3°C) to a moderately hot 79.2°F (26.2°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Mountain Island, North Carolina, with an average temperature ranging between min 65.8°F (18.8°C) and max 86.9°F (30.5°C). As June begins, there's a slight increase in the average high-temperature, moving from a warm 79.2°F (26.2°C) in May to a hot 86.9°F (30.5°C). Weather in June »Weather in July
July, like June, is another hot summer month in Mountain Island, North Carolina, with temperature in the range of an average low of 69.1°F (20.6°C) and an average high of 90.1°F (32.3°C). July, noted for its average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 69.1°F (20.6°C), is considered the warmest month. The average heat index in July is appraised at a blisteringly hot 105.8°F (41°C). Weather in July »Weather in August
August, the last month of the summer in Mountain Island, is also a hot month, with temperature in the range of an average high of 88.3°F (31.3°C) and an average low of 67.8°F (19.9°C). August's average high-temperature stands at a still tropical 88.3°F (31.3°C), showing little deviation from July's 90.1°F (32.3°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Mountain Island, North Carolina, with an average temperature fluctuating between 62.6°F (17°C) and 82.2°F (27.9°C). The start of September comes with a small reduction in the average high-temperature, subtly receding from a hot 88.3°F (31.3°C) in August to a moderately hot 82.2°F (27.9°C). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Mountain Island, North Carolina, with an average temperature ranging between min 52°F (11.1°C) and max 71.1°F (21.7°C). Mountain Island in October experiences a subtle temperature decline, with average high-temperatures reducing from a warm 82.2°F (27.9°C) in September to an agreeable 71.1°F (21.7°C). Weather in October »Weather in November
November, the last month of the autumn in Mountain Island, is another mild month, with an average temperature ranging between max 58.8°F (14.9°C) and min 41.5°F (5.3°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's pleasant 71.1°F (21.7°C) to a mild 58.8°F (14.9°C). Weather in November »Weather in December
The first month of the winter, December, is also a fresh month in Mountain Island, North Carolina, with an average temperature varying between 51.8°F (11°C) and 37.6°F (3.1°C). The transition into December involves a small decrease in the average high-temperature, dipping slightly from a mild 58.8°F (14.9°C) in November to a fresh 51.8°F (11°C). Weather in December »Updated: Aug 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
The lowest temperatures are recorded in January, with averages reaching a high of 47.8°F (8.8°C) and a low of 32.5°F (0.3°C).
In Mountain Island, during the entire year, the rain falls for 158.9 days and collects up to 31.26" (794mm) of precipitation.
January through March, November and December are months with snowfall.
Throughout the year, there are 4.6 snowfall days, and 5.79" (147mm) of snow is accumulated.
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Mountain Island.
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.
April through October are months without snowfall.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
June has the longest days of the year, with an average of 14h and 30min of daylight.
July is the month when Mountain Island sees the average highest temperatures, with a high of 90.1°F (32.3°C) and a low of 69.1°F (20.6°C).
With an average relative humidity of 70%, July is the least humid month in Mountain Island.
July has the most sunshine of the year, with an average of 10.8h of sunshine.
August is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.43" (87mm) of precipitation.
The month with the least rainfall is October, when the rain falls for 9.7 days and typically collects 1.93" (49mm) of precipitation.
With an average relative humidity of 76%, December is the most humid month.
The month with the most snowfall is December, when snow falls for 0.6 days and typically aggregates up to 2.01" (51mm) of snow.
With an average of 9h and 48min of daylight, December has the shortest days of the year.
December has the least sunshine of the year, with an average of 5.3h of sunshine.
Average temperature
Mountain Island, NC
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (47.8°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 (32.5°F).
Average pressure
Mountain Island, NC
- 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:
29.98"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:
30.16"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 (29.98"Hg).
Average wind speed
Mountain Island, NC
- Average wind speed in January:
6.5mph - Average wind speed in February:
6.9mph - Average wind speed in March:
6.9mph - Average wind speed in April:
7.2mph - Average wind speed in May:
5.8mph - Average wind speed in June:
4.9mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.9mph - Average wind speed in October:
5.8mph - Average wind speed in November:
5.9mph - Average wind speed in December:
6mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity
Mountain Island, NC
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall
Mountain Island, NC
- Average rainfall in January:
2.6" - Average rainfall in February:
2.28" - Average rainfall in March:
2.52" - Average rainfall in April:
2.99" - Average rainfall in May:
2.8" - Average rainfall in June:
2.36"
The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is October (1.93").
Average rainfall days
Mountain Island, NC
- Average rainfall days in January:
9.6 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
11.1 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Mountain Island, NC
The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Mountain Island, NC
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
1.8 days - Average snowfall days in March:
0.6 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:
0.6 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Mountain Island, 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 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - 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 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 36min - Average sunshine in February:
6h and 30min - Average sunshine in March:
7h and 12min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 42min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days
Mountain Island, NC
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
15.9 days - Average sunshine days in March:
15.5 days - Average sunshine days in April:
14.4 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
20.7 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
18.6 days
The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (10.6 days).
Average UV index
Mountain Island, NC
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
Mountain Island, NC
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 30).
Average visibility
Mountain Island, NC
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).
