Monthly weather forecast and climate
Mountain Island, NC

Weather in January

January, the same as December, in Mountain Island, North Carolina, is another chilly winter month, with average temperature ranging between min 32.5°F (0.3°C) and max 47.8°F (8.8°C). The coldest month is January, with an average high-temperature of 47.8°F (8.8°C) and an average low-temperature of 32.5°F (0.3°C). Weather in January »

Weather in February

February, the last month of the winter, in Mountain Island, is a cool month, with average temperature ranging between max 53.2°F (11.8°C) and min 36°F (2.2°C). In February, the average high-temperature marginally rises, from a frosty 47.8°F (8.8°C) in January, to a fresh 53.2°F (11.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a moderate month in Mountain Island, North Carolina, with average temperature fluctuating between 60.1°F (15.6°C) and 41.5°F (5.3°C). In March, the average high-temperature slightly increases, from a fresh 53.2°F (11.8°C) in February, to a moderate 60.1°F (15.6°C). Weather in March »

Weather in April

April in Mountain Island, North Carolina, is an agreeable spring month, with average temperature ranging between max 70.3°F (21.3°C) and min 50.9°F (10.5°C). In April, the average high-temperature increases, 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

The last month of the spring, May, is a warm month in Mountain Island, North Carolina, with average temperature varying between 59°F (15°C) and 79.2°F (26.2°C). In May, the average high-temperature marginally rises, from an agreeable 70.3°F (21.3°C) in April, to a moderately hot 79.2°F (26.2°C). Weather in May »

Weather in June

June, the first month of the summer, in Mountain Island, is a hot month, with average temperature varying between 86.9°F (30.5°C) and 65.8°F (18.8°C). In Mountain Island, the average high-temperature in June marginally rises, from a moderately hot 79.2°F (26.2°C) in May, to a hot 86.9°F (30.5°C). Weather in June »

Weather in July

July, the same as June, in Mountain Island, North Carolina, is another tropical summer month, with average temperature fluctuating between 90.1°F (32.3°C) and 69.1°F (20.6°C). The warmest month is July, with an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 69.1°F (20.6°C). The average heat index is appraised at an extremely hot 106.3°F (41.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Mountain Island, North Carolina, with temperature in the range of an average low of 67.8°F (19.9°C) and an average high of 88.3°F (31.3°C). In August, the average high-temperature is almost the same as in July - a still hot 88.3°F (31.3°C). Weather in August »

Weather in September

September, the first month of the autumn, in Mountain Island, is also a moderately hot month, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 62.6°F (17°C). In Mountain Island, the average high-temperature slightly decreases, from a hot 88.3°F (31.3°C) in August, to a warm 82.2°F (27.9°C). Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Mountain Island, North Carolina, with average temperature ranging between min 52°F (11.1°C) and max 71.1°F (21.7°C). In October, the average high-temperature drops, 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 also a moderate month, with temperature in the range of an average high of 58.8°F (14.9°C) and an average low of 41.5°F (5.3°C). In November, the average high-temperature decreases, from an agreeable 71.1°F (21.7°C) in October, to a moderate 58.8°F (14.9°C). Weather in November »

Weather in December

December, the first month of the winter, in Mountain Island, is still a cool month, with temperature in the range of an average high of 51.8°F (11°C) and an average low of 37.6°F (3.1°C). In December, the average high-temperature slightly decreases, from a moderate 58.8°F (14.9°C) in November, to a cool 51.8°F (11°C). Weather in December »
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FAQ

What is the coldest month in Mountain Island?

The coldest month in Mountain Island is January, with an average high-temperature of 47.8°F (8.8°C) and an average low-temperature of 32.5°F (0.3°C).

How much does it rain in Mountain Island?

In Mountain Island, during the entire year, the rain falls for 158.9 days and collects up to 31.26" (794mm) of precipitation.

When does it snow in Mountain Island?

January through March, November and December are months with snowfall.

How many days does it snow in Mountain Island?

Throughout the year, in Mountain Island, North Carolina, there are 4.6 snowfall days, and 5.79" (147mm) of snow is accumulated.

When is the lowest UV index in Mountain Island?

Months with the lowest UV index in Mountain Island, North Carolina, are January and December, with an average maximum UV index of 2.

When it does not snow in Mountain Island?

In Mountain Island snow does not fall in April through October.

What are the months with the highest UV index in Mountain Island?

Months with the highest UV index in Mountain Island, North Carolina, are May through August, with an average maximum UV index of 6.

When are the longest days in Mountain Island?

June has the longest days of the year, with an average of 14.5h of daylight.

What is the warmest month in Mountain Island?

With an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 69.1°F (20.6°C), July is the warmest month in Mountain Island, North Carolina.

What is the least humid month in Mountain Island?

The least humid month in Mountain Island, North Carolina, is July, with an average relative humidity of 70%.

What month has the most sunshine in Mountain Island?

With an average of 10.8h of sunshine, July has the most sunshine of the year.

What is the rainiest month in Mountain Island?

August is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.43" (87mm) of precipitation.

What is the driest month in Mountain Island?

October is the month with the least rainfall. Rain falls for 9.7 days and accumulates 1.93" (49mm) of precipitation.

What is the most humid month in Mountain Island?

The most humid month in Mountain Island is December, with an average relative humidity of 76%.

What is the snowiest month in Mountain Island?

December is the month with the most snowfall. Snow falls for 0.6 days and accumulates 2.01" (51mm) of snow.

What is the month with the shortest days in Mountain Island?

December has the shortest days of the year in Mountain Island, North Carolina, with an average of 9.8h of daylight.

What is the month with the least sunshine in Mountain Island?

With an average of 5.3h of sunshine, December has the least sunshine of the year.

Average temperature
Mountain Island, NC

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).

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Average pressure
Mountain Island, NC

Average pressure - Mountain Island, NC

The month with the highest atmospheric pressure is November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

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Average wind speed
Mountain Island, NC

Average wind speed - Mountain Island, NC

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).

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Average humidity
Mountain Island, NC

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%).

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Average rainfall
Mountain Island, NC

Average rainfall - Mountain Island, NC

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is October (1.93").

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Average rainfall days
Mountain Island, NC

Average rainfall days - Mountain Island, NC

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).

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Average snowfall
Mountain Island, NC

Average snowfall - Mountain Island, NC

The month with the highest snowfall is December (2.01").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Mountain Island, NC

Average snowfall days - Mountain Island, NC

The month with the highest number of snowfall days is February (1.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Mountain Island, NC

Average daylight / Average sunshine - Mountain Island, NC

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days
Mountain Island, NC

Average sunshine days - Mountain Island, NC

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index
Mountain Island, NC

Average UV index - Mountain Island, NC

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average visibility
Mountain Island, NC

Average visibility - Mountain Island, NC

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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