Climate and monthly weather forecast
New Castle, KY

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Weather in January

January, like December, in New Castle, Kentucky, is another cold winter month, with an average temperature varying between 25.3°F (-3.7°C) and 38.3°F (3.5°C). With average temperatures fluctuating between a high of 38.3°F (3.5°C) and a low of 25.3°F (-3.7°C), January stands out as the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in New Castle, Kentucky, with an average temperature fluctuating between 43°F (6.1°C) and 28.2°F (-2.1°C). February brings an average high-temperature of a chilly 43°F (6.1°C), showing a slight difference from January's 38.3°F (3.5°C). Weather in February »

Weather in March

March, the first month of the spring in New Castle, is a fresh month, with temperature in the range of an average high of 53.2°F (11.8°C) and an average low of 36.7°F (2.6°C). New Castle's weather shows a temperature rise with the arrival of March, moving from a chilly 43°F (6.1°C) in February to a fresh 53.2°F (11.8°C). Weather in March »

Weather in April

April is a comfortable spring month in New Castle, Kentucky, with an average temperature ranging between max 64.9°F (18.3°C) and min 46°F (7.8°C). With the onset of April, New Castle's average high-temperature experiences a rise, moving from March's fresh 53.2°F (11.8°C) to an enjoyable 64.9°F (18.3°C). Weather in April »

Weather in May

May, the last month of the spring in New Castle, is a warm month, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 74.8°F (23.8°C). New Castle's transition into May is marked by a temperature shift, moving from a comfortable 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 New Castle, is also a moderately hot month, with an average temperature fluctuating between 63.3°F (17.4°C) and 82.9°F (28.3°C). As New Castle enters June, the average high-temperature marginally increases from the a moderately hot 74.8°F (23.8°C) of May to a still warm 82.9°F (28.3°C). Weather in June »

Weather in July

July, like June, in New Castle, Kentucky, is a moderately hot summer month, with temperature in the range of an average low of 66.4°F (19.1°C) and an average high of 85.6°F (29.8°C). July is New Castle's warmest month, registering average high temperatures of 85.6°F (29.8°C) and lows of 66.4°F (19.1°C). For most parts of July, the heat index is computed to be a fiery hot 96.8°F (36°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in New Castle, Kentucky, with temperature in the range of an average high of 84.7°F (29.3°C) and an average low of 65.1°F (18.4°C). Welcoming August, New Castle notes an average high-temperature of a still warm 84.7°F (29.3°C), nearly consistent with July's 85.6°F (29.8°C). Weather in August »

Weather in September

September, the first month of the autumn in New Castle, is also a moderately hot month, with an average temperature fluctuating between 79°F (26.1°C) and 59.5°F (15.3°C). The average high-temperature slightly decreases in September, shifting from a warm 84.7°F (29.3°C) in August to a still moderately hot 79°F (26.1°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in New Castle, Kentucky, with an average temperature varying between 65.8°F (18.8°C) and 47.3°F (8.5°C). Onset of October witnesses a reduction in the average high-temperature, falling from a warm 79°F (26.1°C) in September to a comfortable 65.8°F (18.8°C). Weather in October »

Weather in November

November, the last month of the autumn in New Castle, is another cool month, with an average temperature varying between 52.9°F (11.6°C) and 36.7°F (2.6°C). The beginning of November marks a decrease in the average high-temperature, transitioning from an enjoyable 65.8°F (18.8°C) in October to a fresh 52.9°F (11.6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in New Castle, Kentucky, with an average temperature varying between 43.7°F (6.5°C) and 31.3°F (-0.4°C). As November transitions to December, the average high-temperature falls from a cool 52.9°F (11.6°C) to a chilly 43.7°F (6.5°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in New Castle?

The coldest month in New Castle, Kentucky, is January, with an average high-temperature of 38.3°F (3.5°C) and an average low-temperature of 25.3°F (-3.7°C).

How much does it rain in New Castle?

In New Castle, during the entire year, the rain falls for 147.9 days and collects up to 23.98" (609mm) of precipitation.

When does it snow in New Castle?

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

How many days does it snow in New Castle?

In New Castle, during the entire year, snow falls for 25.8 days and aggregates up to 6.02" (153mm) of snow.

What is the month with the least sunshine in New Castle?

The month with the least sunshine is January, with an average of 4.2h of sunshine.

When is the lowest UV index in New Castle?

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

What are the most humid months in New Castle?

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

When does it snow the most in New Castle?

March is the month with the most snowfall in New Castle. Snow falls for 3.7 days and accumulates 1.54" (39mm) of snow.

When is Daylight Saving Time (DST) in New Castle?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in New Castle, 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 rainiest month in New Castle?

The month with the most rainfall in New Castle is April, when the rain falls for 14.9 days and typically aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in New Castle?

In New Castle, snow does not fall in May through September.

When are the longest days in New Castle?

June has the longest days of the year in New Castle, Kentucky, with an average of 14h and 48min of daylight.

When is the highest UV index in New Castle?

The months with the highest UV index in New Castle are June through August, with an average maximum UV index of 6.

What part of the year is the hottest in New Castle?

July is the month when New Castle, Kentucky, sees the average highest temperatures, with a high of 85.6°F (29.8°C) and a low of 66.4°F (19.1°C).

What month has the most sunshine in New Castle?

With an average of 10.2h of sunshine, July has the most sunshine of the year.

What is the least humid month in New Castle?

The months with the lowest humidity are August through October, with an average relative humidity of 75%.

What is the driest month in New Castle?

September is the month with the least rainfall in New Castle. Rain falls for 11 days and accumulates 1.3" (33mm) of precipitation.

What is the month with the shortest days in New Castle?

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

Average temperature
New Castle, KY

Average temperature - New Castle, KY

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.3°F).

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure
New Castle, KY

Average pressure - New Castle, KY

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed
New Castle, KY

Average wind speed - New Castle, KY

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity
New Castle, KY

Average humidity - New Castle, KY

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).

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Average rainfall
New Castle, KY

Average rainfall - New Castle, KY

The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days
New Castle, KY

Average rainfall days - New Castle, KY

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall
New Castle, KY

Average snowfall - New Castle, KY

The month with the highest snowfall is March (1.54").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
New Castle, KY

Average snowfall days - New Castle, KY

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
New Castle, KY

Average daylight / Average sunshine - New Castle, 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 July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days
New Castle, KY

Average sunshine days - New Castle, KY

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is May (11.9 days).

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Average UV index
New Castle, KY

Average UV index - New Castle, KY

The months with the highest UV index are 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
New Castle, KY

Average visibility - New Castle, KY

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

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New Castle, Kentucky, USA

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