New Castle
Indiana, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
New Castle, IN

January, like December, in New Castle, Indiana, is another cold winter month, with temperature in the range of an average low of 20.5°F (-6.4°C) and an average high of 32.2°F (0.1°C). The coldest month is January, with an average high-temperature of 32.2°F (0.1°C) and an average low-temperature of 20.5°F (-6.4°C). Weather in January »

February, the last month of the winter, in New Castle, is also a wintry month, with average temperature fluctuating between 36.9°F (2.7°C) and 24.1°F (-4.4°C). In New Castle, the average high-temperature is essentially the same as in January - a still wintry 36.9°F (2.7°C). Weather in February »

The first month of the spring, March, is a frosty month in New Castle, Indiana, with average temperature fluctuating between 33.6°F (0.9°C) and 48.6°F (9.2°C). In New Castle, Indiana, the average high-temperature in March increases, from a cold 36.9°F (2.7°C) in February, to a chilly 48.6°F (9.2°C). Weather in March »

April is a moderate spring month in New Castle, Indiana, with average temperature fluctuating between 60.4°F (15.8°C) and 44.1°F (6.7°C). In New Castle, the average high-temperature rises, from a chilly 48.6°F (9.2°C) in March, to a mild 60.4°F (15.8°C). Weather in April »

May, the last month of the spring, in New Castle, is an agreeable month, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 71.2°F (21.8°C). In May, the average high-temperature increases, from a moderate 60.4°F (15.8°C) in April, to a pleasant 71.2°F (21.8°C). Weather in May »

June, the first month of the summer, in New Castle, is a moderately hot month, with average temperature varying between 78.1°F (25.6°C) and 62.2°F (16.8°C). In New Castle, Indiana, the average high-temperature in June marginally rises, from an agreeable 71.2°F (21.8°C) in May, to a moderately hot 78.1°F (25.6°C). Weather in June »

July, like June, in New Castle, Indiana, is another warm summer month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 64.4°F (18°C). The warmest month is July, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.4°F (18°C). The average heat index in July is estimated at a tropical 86.7°F (30.4°C). Weather in July »

The last month of the summer, August, is another warm month in New Castle, Indiana, with average temperature varying between 79.3°F (26.3°C) and 62.2°F (16.8°C). In New Castle, the average high-temperature in August is practically the same as in July - a still warm 79.3°F (26.3°C). Weather in August »

September, the first month of the autumn, in New Castle, is also a moderately hot month, with average temperature varying between 56.8°F (13.8°C) and 74.3°F (23.5°C). In September, the average high-temperature is practically the same as in August - a still moderately hot 74.3°F (23.5°C). Weather in September »

October, like September, in New Castle, Indiana, is another enjoyable autumn month, with average temperature ranging between min 46.6°F (8.1°C) and max 62.1°F (16.7°C). In October, the average high-temperature decreases, from a warm 74.3°F (23.5°C) in September, to a comfortable 62.1°F (16.7°C). Weather in October »

November, the last month of the autumn, in New Castle, is also a frosty month, with temperature in the range of an average high of 48.6°F (9.2°C) and an average low of 34.9°F (1.6°C). In November, the average high-temperature decreases, from a comfortable 62.1°F (16.7°C) in October, to a chilly 48.6°F (9.2°C). Weather in November »

December, the first month of the winter, in New Castle, is also a wintry month, with average temperature fluctuating between 27.9°F (-2.3°C) and 37.9°F (3.3°C). In December, the average high-temperature decreases, from a chilly 48.6°F (9.2°C) in November, to a cold 37.9°F (3.3°C). Weather in December »

What is the coldest month in New Castle?

January is the coldest month, with an average high-temperature of 32.2°F (0.1°C) and an average low-temperature of 20.5°F (-6.4°C).

What are the most humid months in New Castle?

Months with the highest humidity are January and December, with an average relative humidity of 83%.

How much does it rain in New Castle?

Throughout the year, in New Castle, there are 169.4 rainfall days, and 31.77" (807mm) of precipitation is accumulated.

When does it snow in New Castle?

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

How many days does it snow in New Castle?

In New Castle, during the entire year, snow falls for 42.7 days, and aggregates up to 13.82" (351mm) of snow.

What is the snowiest month in New Castle?

January is the month with the most snowfall. Snow falls for 12.8 days and accumulates 3.31" (84mm) of snow.

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

January has the least sunshine of the year, with an average of 3.6h of sunshine.

What is the driest month in New Castle?

February is the month with the least rainfall in New Castle, Indiana. Rain falls for 8.8 days and accumulates 1.85" (47mm) of precipitation.

What is the wettest month in New Castle?

May is the month with the most rainfall in New Castle, Indiana. Rain falls for 19.7 days and accumulates 3.9" (99mm) of precipitation.

When it does not snow in New Castle?

May through September are months without snowfall in New Castle.

When is the highest UV index in New Castle?

May through July, with an average maximum UV index of 6, are months with the highest UV index in New Castle, Indiana.

When are the longest days in New Castle?

The month with the longest days is June, with an average of 15h of daylight.

What month has the most sunshine in New Castle?

The month with the most sunshine is June, with an average of 10.1h of sunshine.

What is the warmest month in New Castle?

With an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.4°F (18°C), July is the warmest month in New Castle.

What is the least humid month in New Castle?

The least humid month in New Castle is October, with an average relative humidity of 74%.

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

With an average of 9.4h of daylight, December has the shortest days of the year.

When is the lowest UV index in New Castle?

December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature - New Castle, IN
Average humidity - New Castle, IN
Average rainfall - New Castle, IN
Average rainfall days - New Castle, IN

The month with the highest number of rainy days is May (19.7 days).
The month with the lowest number of rainy days is February (8.8 days).

Average snowfall - New Castle, IN
Average snowfall days - New Castle, IN

The month with the highest number of snowfall days is January (12.8 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - New Castle, IN