Climate and monthly weather forecast
Helena, KY

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Weather in January

January, the same as December, is another cold winter month in Helena, Kentucky, with an average temperature varying between 25.2°F (-3.8°C) and 37.9°F (3.3°C). Helena's temperature records reveal January as the coldest month, marked by average highs of 37.9°F (3.3°C) and lows of 25.2°F (-3.8°C). Weather in January »

Weather in February

February, the last month of the winter in Helena, is a chilly month, with an average temperature fluctuating between 42.8°F (6°C) and 28.2°F (-2.1°C). The high-temperature average in February for Helena is a frosty 42.8°F (6°C), staying closely aligned with January's conditions. Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Helena, Kentucky, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 52.5°F (11.4°C). March's arrival coincides with a rise in the average high-temperature, moving from February's chilly 42.8°F (6°C) to a fresh 52.5°F (11.4°C). Weather in March »

Weather in April

April is an enjoyable spring month in Helena, Kentucky, with an average temperature fluctuating between 45.7°F (7.6°C) and 64.9°F (18.3°C). Helena sees a rise in temperature during April, with average high-temperatures transitioning from a fresh 52.5°F (11.4°C) in March to a comfortable 64.9°F (18.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Helena, Kentucky, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 55.2°F (12.9°C). May brings an increase in the average high-temperature, progressing from an enjoyable 64.9°F (18.3°C) in April to a warm 74.8°F (23.8°C). Weather in May »

Weather in June

June, the first month of the summer in Helena, is also a moderately hot month, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 82.2°F (27.9°C). Helena observes a slight ascent in average high-temperatures during June, adjusting from 74.8°F (23.8°C) in May to a still warm 82.2°F (27.9°C). Weather in June »

Weather in July

July, like June, in Helena, Kentucky, is a moderately hot summer month, with an average temperature fluctuating between 64.9°F (18.3°C) and 85.3°F (29.6°C). Helena, Kentucky, registers the highest average temperatures during the month of July, with peaks of 85.3°F (29.6°C) and lows of 64.9°F (18.3°C). In July, the average heat index is estimated at a very hot 96.8°F (36°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Helena, Kentucky, with an average temperature ranging between max 84.2°F (29°C) and min 63.5°F (17.5°C). August records an average high-temperature of a still moderately hot 84.2°F (29°C), indicating a minor variation from the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Helena, Kentucky, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 78.1°F (25.6°C). As September commences, the average high-temperature subtly reduces, transitioning from 84.2°F (29°C) in August to a still moderately hot 78.1°F (25.6°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Helena, Kentucky, with an average temperature varying between 65.3°F (18.5°C) and 46.9°F (8.3°C). Stepping into October, Helena observes a temperature decline, with the average high falling from September's moderately hot 78.1°F (25.6°C) to a comfortable 65.3°F (18.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Helena, Kentucky, with an average temperature ranging between max 52.3°F (11.3°C) and min 36.9°F (2.7°C). In Helena, the beginning of November is marked by a lowered average high-temperature, shifting from October's refreshing 65.3°F (18.5°C) to a fresh 52.3°F (11.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Helena, Kentucky, with temperature in the range of an average high of 43.5°F (6.4°C) and an average low of 31.3°F (-0.4°C). December implies a soft temperature shift, with average high-temperatures reducing from November's cool 52.3°F (11.3°C) to a frosty 43.5°F (6.4°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Helena?

Helena's coldest temperatures are experienced in January, with average high temperatures of 37.9°F (3.3°C) and lows of 25.2°F (-3.8°C).

What is the driest month in Helena?

January, September and October are months with the least rain when the rain falls for 9.3 days and typically aggregates up to 1.06" (27mm) of rain.

How many days does it rain in Helena?

Throughout the year, in Helena, there are 143.3 rainfall days, and 17.36" (441mm) of precipitation is accumulated.

When does it snow in Helena?

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

How many days does it snow in Helena?

In Helena, during the entire year, snow falls for 30.6 days and aggregates up to 5.16" (131mm) of snow.

What is the month with the least sunshine in Helena?

With an average of 3.9h of sunshine, January has the least sunshine of the year in Helena.

When is the lowest UV index in Helena?

The months with the lowest UV index in Helena, Kentucky, are January, February, November and December, with an average maximum UV index of 2.

What are the most humid months in Helena?

February and December, with an average relative humidity of 81%, are most humid months in Helena, Kentucky.

When does it snow the most in Helena?

The month with the most snowfall is February, when snow falls for 7.9 days and typically aggregates up to 1.46" (37mm) of snow.

When is Daylight Saving Time (DST) in Helena?

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

May through September are months without snowfall.

When is the highest UV index in Helena?

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

When are the longest days in Helena?

The month with the longest days in Helena, Kentucky, is June, with an average of 14h and 48min of daylight.

What are the warmest months in Helena?

Temperature records mark July as the warmest month, with highs averaging 85.3°F (29.6°C) and lows at 64.9°F (18.3°C).

What is the wettest month in Helena?

The month with the most rainfall in Helena is July, when the rain falls for 15.8 days and typically aggregates up to 1.93" (49mm) of precipitation.

What is the least humid month in Helena?

August is the least humid month, with an average relative humidity of 75%.

What month has the most sunshine in Helena?

August has the most sunshine of the year in Helena, Kentucky, with an average of 10.2h of sunshine.

What is the month with the shortest days in Helena?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

Average temperature
Helena, KY

Average temperature - Helena, KY

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure
Helena, KY

Average pressure - Helena, KY

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed
Helena, KY

Average wind speed - Helena, KY

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity
Helena, KY

Average humidity - Helena, KY

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

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Average rainfall
Helena, KY

Average rainfall - Helena, KY

The wettest month (with the highest rainfall) is July (1.93").
The driest months (with the least rainfall) are January, September and October (1.06").

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Average rainfall days
Helena, KY

Average rainfall days - Helena, KY

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall
Helena, KY

Average snowfall - Helena, KY

The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Helena, KY

Average snowfall days - Helena, KY

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Helena, KY

Average daylight / Average sunshine - Helena, KY

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days
Helena, KY

Average sunshine days - Helena, KY

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is February (11.4 days).

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Average UV index
Helena, KY

Average UV index - Helena, 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, November and December (UV index 2).

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Average visibility
Helena, KY

Average visibility - Helena, KY

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

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Helena, Kentucky, USA

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