Climate and monthly weather forecast
Jaco, WV

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Weather in January

January, like December, in Jaco, West Virginia, is an icy winter month, with an average temperature ranging between max 34.5°F (1.4°C) and min 21.6°F (-5.8°C). Jaco experiences its lowest average temperatures in January, reaching a peak of 34.5°F (1.4°C) and a minimum of 21.6°F (-5.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Jaco, West Virginia, with an average temperature varying between 24.8°F (-4°C) and 39.4°F (4.1°C). The initiation of February records an average high-temperature of a still icy 39.4°F (4.1°C), displaying a near consistency with the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Jaco, West Virginia, with an average temperature fluctuating between 32°F (0°C) and 48.6°F (9.2°C). As Jaco, West Virginia, transitions into March, the average high-temperature is observed to rise from a wintry 39.4°F (4.1°C) in February to a frosty 48.6°F (9.2°C). Weather in March »

Weather in April

April is a moderate spring month in Jaco, West Virginia, with an average temperature ranging between max 60.4°F (15.8°C) and min 41.5°F (5.3°C). The average high-temperature increases in April, moving from a frosty 48.6°F (9.2°C) in March to a moderate 60.4°F (15.8°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Jaco, West Virginia, with an average temperature varying between 71.6°F (22°C) and 50.9°F (10.5°C). The shift from April to May brings an increase in the average high-temperature, moving from a mild 60.4°F (15.8°C) to a pleasant 71.6°F (22°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Jaco, West Virginia, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 57.2°F (14°C). Jaco's weather in June shows a minor rise in the average high-temperature, moving slightly up from May's agreeable 71.6°F (22°C) to a moderately hot 78.3°F (25.7°C). Weather in June »

Weather in July

July, like June, in Jaco, West Virginia, is another warm summer month, with an average temperature fluctuating between 60.6°F (15.9°C) and 82.6°F (28.1°C). In Jaco, West Virginia, the peak average temperatures are observed in July, with a high of 82.6°F (28.1°C) and a low of 60.6°F (15.9°C). The heat index value during July is estimated at a tropical 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Jaco, West Virginia, with an average temperature ranging between min 58.6°F (14.8°C) and max 81.5°F (27.5°C). August's arrival registers an average high-temperature of a still warm 81.5°F (27.5°C), closely aligning with the temperature of the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Jaco, is also a moderately hot month, with an average temperature varying between 54.5°F (12.5°C) and 75.7°F (24.3°C). September is characterized by a mild reduction in the average high-temperature, from 81.5°F (27.5°C) in August to a still warm 75.7°F (24.3°C). Weather in September »

Weather in October

October, like September, in Jaco, West Virginia, is another comfortable autumn month, with an average temperature ranging between max 62.1°F (16.7°C) and min 44.8°F (7.1°C). October's arrival correlates with a reduction in the average high-temperature, down from a warm 75.7°F (24.3°C) in September to a refreshing 62.1°F (16.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Jaco, West Virginia, with an average temperature ranging between min 34°F (1.1°C) and max 50°F (10°C). Jaco observes a minor decrease in the average high-temperature with the arrival of November, falling from October's comfortable 62.1°F (16.7°C) to a fresh 50°F (10°C). Weather in November »

Weather in December

December, the first month of the winter in Jaco, is also an icy month, with an average temperature varying between 29.3°F (-1.5°C) and 40.6°F (4.8°C). Jaco in December demonstrates a small temperature transition, adjusting from an average high of a fresh 50°F (10°C) in November to a cold 40.6°F (4.8°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Jaco?

With average high and low temperatures of 34.5°F (1.4°C) and 21.6°F (-5.8°C) respectively, January is Jaco's coldest month.

What are the most humid months in Jaco?

January and February, with an average relative humidity of 84%, are most humid months.

How much does it rain in Jaco?

In Jaco, West Virginia, during the entire year, the rain falls for 187.8 days and collects up to 36.46" (926mm) of precipitation.

When does it snow in Jaco?

January through May, October through December are months with snowfall in Jaco.

How many days does it snow in Jaco?

Throughout the year, there are 63.1 snowfall days, and 32.32" (821mm) of snow is accumulated.

What is the month with the least sunshine in Jaco?

January has the least sunshine of the year in Jaco, with an average of 3h of sunshine.

What is the snowiest month in Jaco?

The month with the most snowfall in Jaco is February, when snow falls for 14 days and typically aggregates up to 7.76" (197mm) of snow.

When is Daylight Saving Time (DST) in Jaco?

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.

What is the wettest month in Jaco?

May is the month with the most rainfall. Rain falls for 20.5 days and accumulates 4.02" (102mm) of precipitation.

What are the months with the highest UV index in Jaco?

The months with the highest UV index in Jaco are May through July, with an average maximum UV index of 6.

When it does not snow in Jaco?

June through September are months without snowfall.

When are the longest days in Jaco?

With an average of 14h and 54min of daylight, June has the longest days of the year in Jaco.

What is the warmest month in Jaco?

Jaco reaches its average highest temperatures in July, measuring 82.6°F (28.1°C) at the peak and 60.6°F (15.9°C) at the lowest.

What is the least humid month in Jaco?

July and August, with an average relative humidity of 77%, are the least humid months in Jaco, West Virginia.

What month has the most sunshine in Jaco?

August has the most sunshine of the year, with an average of 10h of sunshine.

What is the driest month in Jaco?

The month with the least rainfall is September, when the rain falls for 15.2 days and typically collects 2.17" (55mm) of precipitation.

What is the month with the shortest days in Jaco?

December has the shortest days of the year in Jaco, with an average of 9h and 24min of daylight.

When is the lowest UV index in Jaco?

December is the month with the lowest UV index, with an average maximum UV index of 1.

Average temperature
Jaco, WV

Average temperature - Jaco, WV

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.5°F).

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure
Jaco, WV

Average pressure - Jaco, WV

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Jaco, WV

Average wind speed - Jaco, WV

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity
Jaco, WV

Average humidity - Jaco, WV

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall
Jaco, WV

Average rainfall - Jaco, WV

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days
Jaco, WV

Average rainfall days - Jaco, WV

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (11.1 days).

Average snowfall
Jaco, WV

Average snowfall - Jaco, WV

The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Jaco, WV

Average snowfall days - Jaco, WV

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Jaco, WV

Average daylight / Average sunshine - Jaco, WV

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 3h).

Average sunshine days
Jaco, WV

Average sunshine days - Jaco, WV

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.7 days).

Average visibility
Jaco, WV

Average visibility - Jaco, WV

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

Jaco, West Virginia, USA

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