Climate and monthly weather forecast
Saint Helens, KY

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Weather in January

January, the same as December, is an icy winter month in Saint Helens, Kentucky, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 40.1°F (4.5°C). Saint Helens notes the coldest temperatures in January, with a high average of 40.1°F (4.5°C) and a low of 27°F (-2.8°C). Weather in January »

Weather in February

February, the last month of the winter in Saint Helens, is a chilly month, with an average temperature fluctuating between 45.5°F (7.5°C) and 30.6°F (-0.8°C). As Saint Helens enters February, the average high-temperature marginally increases from the a cold 40.1°F (4.5°C) of January to a chilly 45.5°F (7.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Saint Helens, Kentucky, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 37.8°F (3.2°C). The arrival of March brings a soft temperature shift, with the average high-temperature nudging from a chilly 45.5°F (7.5°C) in February to a fresh 54.3°F (12.4°C). Weather in March »

Weather in April

April in Saint Helens, Kentucky, is a comfortable spring month, with an average temperature ranging between max 66.6°F (19.2°C) and min 46.9°F (8.3°C). Saint Helens in April sees a temperature change, with average high-temperatures moving from a cool 54.3°F (12.4°C) in March to a comfortable 66.6°F (19.2°C). Weather in April »

Weather in May

May, the last month of the spring in Saint Helens, is a moderately hot month, with an average temperature fluctuating between 75.9°F (24.4°C) and 55°F (12.8°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's comfortable 66.6°F (19.2°C) to a moderately hot 75.9°F (24.4°C). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Saint Helens, Kentucky, with an average temperature ranging between max 83.7°F (28.7°C) and min 61.3°F (16.3°C). June's arrival is noted with a slight increase in the average high-temperature, moving from a warm 75.9°F (24.4°C) in May to a still moderately hot 83.7°F (28.7°C). Weather in June »

Weather in July

July in Saint Helens, Kentucky, is a tropical summer month, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 86.9°F (30.5°C). Saint Helens's warmest weather arrives in July, when temperatures average a high of 86.9°F (30.5°C) and a low of 64.2°F (17.9°C). In July, the average heat index is calculated to be a fiery hot 100.4°F (38°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Saint Helens, Kentucky, with an average temperature varying between 62.6°F (17°C) and 85.6°F (29.8°C). The transition into August marks the average high-temperature at a moderately hot 85.6°F (29.8°C), differing minimally from July's 86.9°F (30.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Saint Helens, Kentucky, with an average temperature fluctuating between 57.6°F (14.2°C) and 79.3°F (26.3°C). September ushers in a minor alteration in Saint Helens's climate, with the average high-temperature moving from August's moderately hot 85.6°F (29.8°C) to a still warm 79.3°F (26.3°C). Weather in September »

Weather in October

October, like September, in Saint Helens, Kentucky, is another comfortable autumn month, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 66.6°F (19.2°C). The onset of October introduces a moderate change in Saint Helens's weather, with average high-temperatures falling from September's moderately hot 79.3°F (26.3°C) to a comfortable 66.6°F (19.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Saint Helens, Kentucky, with temperature in the range of an average high of 54.1°F (12.3°C) and an average low of 37.6°F (3.1°C). Onset of November comes with a temperature decline, the average high falling from a refreshing 66.6°F (19.2°C) in October to a fresh 54.1°F (12.3°C). Weather in November »

Weather in December

December, the first month of the winter in Saint Helens, is also a frosty month, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 32.9°F (0.5°C). The arrival of December signals a shift in temperature, down from a fresh 54.1°F (12.3°C) in November to a frosty 45.1°F (7.3°C). Weather in December »
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

With average temperatures fluctuating between a high of 40.1°F (4.5°C) and a low of 27°F (-2.8°C), January stands out as the coldest month.

How many days does it rain?

Throughout the year, there are 167.6 rainfall days, and 33.11" (841mm) of precipitation is accumulated.

When does it snow in Saint Helens?

January through April, October through December are months with snowfall.

How much does it snow?

Throughout the year, there are 32.6 snowfall days, and 12.17" (309mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 4h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index?

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?

February and December, with an average relative humidity of 80%, are most humid months.

What is the rainiest month?

The wettest months are February and May, with an average 3.46" (88mm) of rainfall.

When does it snow the most?

February is the month with the most snowfall. Snow falls for 8.5 days and accumulates 2.99" (76mm) of snow.

When is Daylight Saving Time (DST)?

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.

When it does not snow?

May through September are months without snowfall.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What are the least humid months?

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

When are the longest days?

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

What month has the most sunshine?

With an average of 10.1h of sunshine, June has the most sunshine of the year.

What is the hottest time of year?

July proves to be the warmest month, recording an average peak temperature of 86.9°F (30.5°C) and a minimum temperature of 64.2°F (17.9°C).

What is the driest month?

The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 2.05" (52mm) of precipitation.

What is the month with the shortest days?

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

Average temperature
Saint Helens, KY

Average temperature - Saint Helens, KY

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (40.1°F).

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure
Saint Helens, KY

Average pressure - Saint Helens, KY

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed
Saint Helens, KY

Average wind speed - Saint Helens, KY

The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity
Saint Helens, KY

Average humidity - Saint Helens, KY

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, August, October and November (75%).

Average rainfall
Saint Helens, KY

Average rainfall - Saint Helens, KY

The wettest months (with the highest rainfall) are February and May (3.46").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days
Saint Helens, KY

Average rainfall days - Saint Helens, KY

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (10.7 days).

Average snowfall
Saint Helens, KY

Average snowfall - Saint Helens, KY

The month with the highest snowfall is February (2.99").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Saint Helens, KY

Average snowfall days - Saint Helens, KY

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Saint Helens, KY

Average daylight / Average sunshine - Saint Helens, 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 June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days
Saint Helens, KY

Average sunshine days - Saint Helens, KY

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is February (10.3 days).

Average UV index
Saint Helens, KY

Average UV index - Saint Helens, KY

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, February and December (UV index 2).

Average visibility
Saint Helens, KY

Average visibility - Saint Helens, KY

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

Saint Helens, Kentucky, USA

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