Climate and monthly weather forecast
Williamson, WV

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The climate of Williamson

Williamson, West Virginia, in the USA exemplifies a Humid subtropical climate according to the Köppen climate classification, coded as Cfa. This climate is characterized by the absence of a dry season, with precipitation spread evenly throughout the year. From the observed data, Williamson's annual average temperatures fluctuate between a low of 26.8°F (-2.9°C) to a high of 86°F (30°C).

Throughout the year, the city witnesses varying degrees of humidity, rainfall, snowfall and wind. Relative humidity maintains an average range from 75% to 80% year-round, maintaining a fairly moist climate. Furthermore, rainfall totals average between 1.46" (37mm) to 3.27" (83mm) per month, being generally higher in the colder months and lower in the warmer months.

A stark juxtaposition to rainfall, snowfall is observed primarily in the colder months, peaking at 4.09" (104mm) in February. Conversely, no snow is typically seen from May through to September. The annually reported wind speeds per month fluctuate between averagely mild 3.9mph (6.3km/h) in August to a slightly breezier 6.4mph (10.3km/h) in April.

One notable characteristic of Williamson's weather is the absence of sunshine days in the colder months while the warmer months enjoy much more sunlight. The highest observed average amount of sun hours per day is 10.4 in August. The cloud cover percentage also ranges from 31% to 59%, with higher coverage in colder months and lower during warmer months.

Lastly, the combined monthly average of daylights and sunshine hours, from 9.6 hours in December to 14.7 hours in June, dictates the city's daylight duration altering significantly throughout the year.

The best time to visit Williamson

The most appealing time to visit Williamson would be between June and September. During these warmer months, temperatures are comfortably high, averaging between 78.6°F (25.9°C) and 86°F (30°C). Moreover, this period enjoys the most sunshine hours per day, making it perfect for outdoor activities.

Also, June and July extend relatively lower rainfall averages of 2.36" (60mm) and 2.72" (69mm) respectively compared to other months. Hence, visitors can also expect fewer rainy days.

The worst time to visit Williamson

The least hospitable period to visit Williamson would be between December and February. During these winter months, temperatures sharply fall to average lows between 26.8°F (-2.9°C) and 30.2°F (-1°C), which may not be comfortable for those unaccustomed to the cold.

Moreover, these months also record the maximum amount of snowfall, and the shorter daylight hours might restrict outdoor activities. Therefore, unless a visitor is fond of a winter wonderland, avoiding Williamson during these months would be advisable.

Spring weather in Williamson

During spring, spanning from March to May, Williamson experiences average high temperatures that gradually increase from 54°F (12.2°C) to 75.6°F (24.2°C), and lows that rise from 37.2°F (2.9°C) to 54°F (12.2°C). These temperatures combined with higher sunshine hours (an increase from 6.3 hours to 9.3 hours), render spring an ideal time to explore the city. The potentially largest drawback during this period is the precipitation, which tends to peak at 3.27" (83mm) in May.

Summer weather in Williamson

Summer in Williamson, from June to August, delivers the highest average temperatures of the year, with highs between 78.6°F (25.9°C) to 86°F (30°C) and lows ranging from 59.6°F (15.3°C) to 63.1°F (17.3°C). Visitors can expect longer daylight hours, around 14.2 to 14.7 hours, with abundant sunshine averaging from 9.3 to 10.4 hours per day. Rainfall does slightly decrease during these months, providing an optimal climate for outdoor exploration.

Autumn weather in Williamson

Autumn, extending from September to November, experiences comfortable temperatures as high averages decrease from 78.6°F (25.9°C) to 54°F (12.2°C), and lows fluctuate between 56.8°F (13.8°C) to 37.6°F (3.1°C). Rainfall averages decline gradually from 1.46" (37mm) in September to 2.01" (51mm) in November. Combined with diminishing daylight hours and cooler temperatures, this season offers a serene environment for exploring Williamson.

Winter weather in Williamson

Winter months, from December to February, are characterized by the lowest temperatures, dropping to an average low of 26.8°F (-2.9°C) in January and an average high of 45°F (7.2°C) in February. This period also experiences increased precipitation, largely in the form of snowfall. The shorter daylight hours, roughly from 9.6 hours to 10.8 hours, and reduced sunshine hours, averaging between 4.1 to 5 hours, make winter a tranquil time for visiting Williamson.

Weather in January

January in Williamson, West Virginia, USA experiences the lowest temperatures of the year, with a chilling average low of 26.8°F (-2.9°C) and a high of 40.1°F (4.5°C). Cold winds prevail, adding an extra chill to the air. Cloudy days are more common than clear ones, hindering visibility. Weather in January »

Weather in February

The weather begins to transition from the peak of winter in February, with temperatures gradually increasing compared to January. February receives some of the highest snowfall of the year, covering the city of Williamson in a soft blanket of white. Weather in February »

Weather in March

By March, the thickness of winter begins to thaw. Rising temperatures result in the disappearance of snow, replaced by increased rainfall. This transition month between winter and spring experiences a significant increase of daily sunshine hours and a rise in temperature, with a high peaking at 54°F (12.2°C). Weather in March »

Weather in April

April ushers in the delightful spring season in Williamson. The temperatures continue their upward climb, reaching between 46°F (7.8°C) to 65.8°F (18.8°C) on average. Surroundings come alive with blossoming flowers and greening trees, as rainwater infuses life into the city. Weather in April »

Weather in May

By May, the city revels in a full-blown spring, with temperatures rising to as high as 75.6°F (24.2°C). The city is bathed in a long stretch of sunlit days, encouraging locals and tourists to indulge in outdoor pursuits. As Williamson shakes off the cool grasp of winter and spring, it welcomes the warmth of summer. Weather in May »

Weather in June

June sets the stage for a stunning summer, with temperatures steadily soaring up to an average high of 82.9°F (28.3°C). Sunshine drenches Williamson throughout the day, providing ample opportunity to revel in sunny soirees. The reduced rainfall and rise in temperatures make for pleasant and dry weather. Weather in June »

Weather in July

July is the zenith of summer in Williamson, with temperatures hitting their peak at 86°F (30°C). The city is abuzz with outdoor activities, from picnics in parks to long scenic drives. Almost every day is sun-soaked, the warmth lingers even after sundown. Weather in July »

Weather in August

By August, Williamson is deeply entrenched in summer, and the city continues to sizzle under the heat. The temperature range from 61°F (16.1°C) to 84.4°F (29.1°C) indicates the continuation of warm days and mildly cold nights. Weather in August »

Weather in September

September offers a welcome respite from the relentless summer heat, signifying the start of the balmy fall season. The temperatures begin to fall, averaging between 56.8°F (13.8°C) and 78.6°F (25.9°C). A slight nip can be felt in the air, especially during the nights. Weather in September »

Weather in October

October is characterized by a noticeable drop in temperature when compared to September, averaging between 46.9°F (8.3°C) and 66.2°F (19°C). Williamson is set ablaze with the vibrant colors of fall, making it a beautiful sight to behold. Weather in October »

Weather in November

In November, the temperatures take a dip, ranging from 37.6°F (3.1°C) to 54°F (12.2°C). The city braces itself for the approaching winter. The trees shed their leaves, and landscapes morph into bare silhouettes. The reduced daylight coupled with cooler days is an indication to wrap up in warm clothing. Weather in November »

Weather in December

December marks the arrival of winter. The average temperatures range from 33.1°F (0.6°C) to 45.1°F (7.3°C), mirroring the chilly weather conditions of January. The low temperature, coupled with the highest amount of snowfall, with up to 3.9" (99mm), bestows Williamson with a winter wonderland vibe. Weather in December »
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Frequently asked questions

What is the coldest month in Williamson?

In Williamson, January is the coldest month, with temperatures averaging a high of 40.1°F (4.5°C) and a low of 26.8°F (-2.9°C).

How much does it rain in Williamson?

In Williamson, during the entire year, the rain falls for 163.6 days and collects up to 30.43" (773mm) of precipitation.

When does it snow in Williamson?

Months with snowfall are January through May, October through December.

How many days does it snow in Williamson?

In Williamson, West Virginia, during the entire year, snow falls for 32.9 days and aggregates up to 16.81" (427mm) of snow.

What is the month with the least sunshine in Williamson?

With an average of 4.1h of sunshine, January has the least sunshine of the year in Williamson.

When is the lowest UV index in Williamson?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the most humid month in Williamson?

February is the most humid month in Williamson, West Virginia, with an average relative humidity of 81%.

What is the wettest month in Williamson?

The wettest months in Williamson are February and May, with an average 3.27" (83mm) of rainfall.

What is the snowiest month in Williamson?

February is the month with the most snowfall in Williamson, West Virginia. Snow falls for 7.3 days and accumulates 4.09" (104mm) of snow.

When is Daylight Saving Time (DST) in Williamson?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Williamson, West Virginia, 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.

When it does not snow in Williamson?

June through September are months without snowfall in Williamson.

When are the longest days in Williamson?

The month with the longest days is June, with an average of 14h and 42min of daylight.

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

The months with the highest UV index in Williamson are June and August, with an average maximum UV index of 6.

What is the hottest time of year in Williamson?

July is the warmest month, with an average high-temperature of 86°F (30°C) and an average low-temperature of 63.1°F (17.3°C).

What is the least humid month in Williamson?

July, August and November, with an average relative humidity of 75%, are the least humid months.

What month has the most sunshine in Williamson?

August has the most sunshine of the year in Williamson, with an average of 10.4h of sunshine.

What is the driest month in Williamson?

September is the month with the least rainfall in Williamson. Rain falls for 12.5 days and accumulates 1.46" (37mm) of precipitation.

What is the month with the shortest days in Williamson?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Williamson.

Average pressure
Williamson, WV

Average pressure - Williamson, WV

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

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Average wind speed
Williamson, WV

Average wind speed - Williamson, WV

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity
Williamson, WV

Average humidity - Williamson, WV

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are July, August and November (75%).

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Average rainfall
Williamson, WV

Average rainfall - Williamson, WV

The wettest months (with the highest rainfall) are February and May (3.27").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days
Williamson, WV

Average rainfall days - Williamson, WV

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.1 days).

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Average snowfall
Williamson, WV

Average snowfall - Williamson, WV

The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Williamson, WV

Average snowfall days - Williamson, WV

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Williamson, WV

Average daylight / Average sunshine - Williamson, WV

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days
Williamson, WV

Average sunshine days - Williamson, WV

The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index
Williamson, WV

Average UV index - Williamson, WV

The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average visibility
Williamson, WV

Average visibility - Williamson, WV

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

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Williamson, West Virginia, USA

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