Climate and monthly weather forecast
South Williamson, KY

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Weather in January

January, like December, in South Williamson, Kentucky, is an icy winter month, with an average temperature varying between 26.8°F (-2.9°C) and 40.1°F (4.5°C). January is the coldest month of the year, registering average temperatures as high as 40.1°F (4.5°C) and as low as 26.8°F (-2.9°C). Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in South Williamson, Kentucky, with an average temperature fluctuating between 30.2°F (-1°C) and 45°F (7.2°C). The arrival of February brings an average high-temperature of a chilly 45°F (7.2°C), closely following the temperature pattern of January. Weather in February »

Weather in March

March, the first month of the spring in South Williamson, is a fresh month, with an average temperature varying between 54°F (12.2°C) and 37.2°F (2.9°C). The start of March is characterized by a subtle increase in the average high-temperature, transitioning from a frosty 45°F (7.2°C) in February to a cool 54°F (12.2°C). Weather in March »

Weather in April

April in South Williamson, Kentucky, is an enjoyable spring month, with an average temperature fluctuating between 65.8°F (18.8°C) and 46°F (7.8°C). The arrival of April brings an increase in high-temperatures, moving from a cool 54°F (12.2°C) in March to an enjoyable 65.8°F (18.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in South Williamson, Kentucky, with an average temperature ranging between min 54°F (12.2°C) and max 75.6°F (24.2°C). As May begins, there is an increase in the average high-temperature, moving from an enjoyable 65.8°F (18.8°C) in April to a warm 75.6°F (24.2°C). Weather in May »

Weather in June

June, the first month of the summer in South Williamson, is also a moderately hot month, with an average temperature fluctuating between 59.5°F (15.3°C) and 82.9°F (28.3°C). The shift into June brings a slight increase in the average high-temperature, moving from a moderately hot 75.6°F (24.2°C) in May to a still warm 82.9°F (28.3°C). Weather in June »

Weather in July

July in South Williamson, Kentucky, is a hot summer month, with an average temperature varying between 86°F (30°C) and 63.1°F (17.3°C). The warmest period is July, when temperatures fluctuate between an average high of 86°F (30°C) and a low of 63.1°F (17.3°C). During July, the heat index is evaluated at a sweltering 96.8°F (36°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in South Williamson, Kentucky, with an average temperature ranging between min 61°F (16.1°C) and max 84.4°F (29.1°C). South Williamson's shift from July to August is accompanied by an average high-temperature of a moderately hot 84.4°F (29.1°C), a slight deviation from 86°F (30°C). Weather in August »

Weather in September

September, the first month of the autumn in South Williamson, is still a warm month, with an average temperature varying between 78.6°F (25.9°C) and 56.8°F (13.8°C). September sees a slight reduction in average high-temperature, with a shift from a moderately hot 84.4°F (29.1°C) in August to a still warm 78.6°F (25.9°C). Weather in September »

Weather in October

October, like September, in South Williamson, Kentucky, is another refreshing autumn month, with an average temperature varying between 66.2°F (19°C) and 46.9°F (8.3°C). As October begins, there is a decrease in the average high-temperature, falling from a warm 78.6°F (25.9°C) in September to a refreshing 66.2°F (19°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in South Williamson, Kentucky, with an average temperature ranging between max 54°F (12.2°C) and min 37.6°F (3.1°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from an enjoyable 66.2°F (19°C) in October to a cool 54°F (12.2°C). Weather in November »

Weather in December

December, the first month of the winter in South Williamson, is still a chilly month, with an average temperature ranging between max 45.1°F (7.3°C) and min 33.1°F (0.6°C). December reveals a small adjustment in temperature, transitioning from an average high of a cool 54°F (12.2°C) in November to a frosty 45.1°F (7.3°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in South Williamson?

With an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 26.8°F (-2.9°C), January is the coldest month.

How much does it rain in South Williamson?

Throughout the year, there are 163.6 rainfall days, and 30.43" (773mm) of precipitation is accumulated.

When does it snow in South Williamson?

January through May, October through December are months with snowfall in South Williamson, Kentucky.

How many days does it snow in South Williamson?

Throughout the year, in South Williamson, there are 32.9 snowfall days, and 16.81" (427mm) of snow is accumulated.

What is the month with the least sunshine in South Williamson?

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

What are the months with the lowest UV index in South Williamson?

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

What is the most humid month in South Williamson?

The most humid month is February, with an average relative humidity of 81%.

What is the wettest month in South Williamson?

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

What is the snowiest month in South Williamson?

The month with the most snowfall is February, when snow falls for 7.3 days and typically aggregates up to 4.09" (104mm) of snow.

When is Daylight Saving Time (DST) in South Williamson?

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

In South Williamson, Kentucky, snow does not fall in June through September.

When are the longest days in South Williamson?

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

When is the highest UV index in South Williamson?

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

What month is the hottest in South Williamson?

July is the month when South Williamson experiences its warmest temperatures, averaging a high of 86°F (30°C) and a low of 63.1°F (17.3°C).

What are the least humid months in South Williamson?

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

What month has the most sunshine in South Williamson?

The month with the most sunshine in South Williamson, Kentucky, is August, with an average of 10.4h of sunshine.

What is the driest month in South Williamson?

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

What is the month with the shortest days in South Williamson?

The month with the shortest days in South Williamson is December, with an average of 9h and 36min of daylight.

Average temperature
South Williamson, KY

Average temperature - South Williamson, KY

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (40.1°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure
South Williamson, KY

Average pressure - South Williamson, KY

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
South Williamson, KY

Average wind speed - South Williamson, KY

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
South Williamson, KY

Average humidity - South Williamson, KY

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
South Williamson, KY

Average rainfall - South Williamson, KY

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
South Williamson, KY

Average rainfall days - South Williamson, KY

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
South Williamson, KY

Average snowfall - South Williamson, KY

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
South Williamson, KY

Average snowfall days - South Williamson, KY

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
South Williamson, KY

Average daylight / Average sunshine - South Williamson, KY

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
South Williamson, KY

Average sunshine days - South Williamson, KY

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
South Williamson, KY

Average UV index - South Williamson, KY

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
South Williamson, KY

Average visibility - South Williamson, KY

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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South Williamson, Kentucky, USA

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