Climate and monthly weather forecast
Castleton, IN

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Weather in January

January, the same as December, is a wintry winter month in Castleton, Indiana, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 20.7°F (-6.3°C). Castleton witnesses the coldest weather in January, with temperatures averaging a high of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Castleton, Indiana, with an average temperature ranging between max 37.2°F (2.9°C) and min 24.4°F (-4.2°C). With the transition into February, Castleton notes an average high-temperature of a still cold 37.2°F (2.9°C), closely resembling January. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Castleton, Indiana, with an average temperature varying between 34.5°F (1.4°C) and 49.3°F (9.6°C). The transition from February to March brings a temperature rise, with average high-temperatures increasing from an icy 37.2°F (2.9°C) to a frosty 49.3°F (9.6°C). Weather in March »

Weather in April

April is an enjoyable spring month in Castleton, Indiana, with temperature in the range of an average low of 44.8°F (7.1°C) and an average high of 61°F (16.1°C). Castleton's transition into April brings a rise in the average high-temperature, moving from a frosty 49.3°F (9.6°C) in March to a comfortable 61°F (16.1°C). Weather in April »

Weather in May

May, the last month of the spring in Castleton, is an agreeable month, with an average temperature fluctuating between 55.4°F (13°C) and 71.8°F (22.1°C). May signals a shift in the average high-temperature, moving from April's enjoyable 61°F (16.1°C) to a pleasant 71.8°F (22.1°C). Weather in May »

Weather in June

June, the first month of the summer in Castleton, is a warm month, with an average temperature varying between 79.7°F (26.5°C) and 63.5°F (17.5°C). June's onset brings a subtle temperature rise, moving from an agreeable 71.8°F (22.1°C) in May to a moderately hot 79.7°F (26.5°C). Weather in June »

Weather in July

July, like June, in Castleton, Indiana, is another warm summer month, with an average temperature varying between 65.5°F (18.6°C) and 81.5°F (27.5°C). Castleton witnesses the warmest weather in July, with temperatures averaging a high of 81.5°F (27.5°C) and a low of 65.5°F (18.6°C). During July, the heat index is estimated at a tropical 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Castleton, is also a moderately hot month, with an average temperature varying between 80.2°F (26.8°C) and 63.1°F (17.3°C). Castleton records a slight change with August's average high-temperatures adjusting to a still warm 80.2°F (26.8°C) from July's 81.5°F (27.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Castleton, Indiana, with an average temperature varying between 75.4°F (24.1°C) and 57.6°F (14.2°C). As Castleton, Indiana, transitions from August to September, the average high-temperatures adjust to a still warm 75.4°F (24.1°C), nearly the same as the previous 80.2°F (26.8°C). Weather in September »

Weather in October

October, like September, in Castleton, Indiana, is another enjoyable autumn month, with an average temperature ranging between min 47.1°F (8.4°C) and max 62.8°F (17.1°C). With the onset of October, Castleton's average high-temperature adjusts, receding from September's warm 75.4°F (24.1°C) to an enjoyable 62.8°F (17.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Castleton, is also a frosty month, with an average temperature ranging between max 48.9°F (9.4°C) and min 35.8°F (2.1°C). The shift to November brings a decrease in the average high-temperature, falling from a comfortable 62.8°F (17.1°C) in October to a chilly 48.9°F (9.4°C). Weather in November »

Weather in December

December, the first month of the winter in Castleton, is still a cold month, with an average temperature ranging between min 27.7°F (-2.4°C) and max 38.1°F (3.4°C). Setting in of December comes with a decrease in the average high-temperature, moving from a chilly 48.9°F (9.4°C) in November to an icy 38.1°F (3.4°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Castleton?

In Castleton, January is the coldest month, with temperatures averaging a high of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C).

What is the most humid month in Castleton?

January and December, with an average relative humidity of 83%, are most humid months in Castleton.

How many days does it rain in Castleton?

In Castleton, Indiana, during the entire year, the rain falls for 141 days and collects up to 20.98" (533mm) of precipitation.

When does it snow in Castleton?

Months with snowfall in Castleton, Indiana, are January through April, October through December.

How much does it snow in Castleton?

In Castleton, during the entire year, snow falls for 29.1 days and aggregates up to 7.99" (203mm) of snow.

What is the month with the least sunshine in Castleton?

January has the least sunshine of the year, with an average of 3.9h of sunshine.

What is the driest month in Castleton?

February is the month with the least rainfall in Castleton. Rain falls for 6.2 days and accumulates 1.18" (30mm) of precipitation.

What is the snowiest month in Castleton?

The month with the most snowfall in Castleton is February, when snow falls for 7.1 days and typically aggregates up to 2.01" (51mm) of snow.

When is Daylight Saving Time (DST) in Castleton?

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.

What is the wettest month in Castleton?

The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Castleton?

May through September are months without snowfall in Castleton.

When are the longest days in Castleton?

The month with the longest days in Castleton is June, with an average of 15h and 0min of daylight.

What is the month with the most sunshine in Castleton?

The months with the most sunshine in Castleton are June and July, with an average of 10.1h of sunshine.

When is the highest UV index in Castleton?

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

What month is the hottest in Castleton?

July is the warmest month in Castleton, with an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 65.5°F (18.6°C).

What is the least humid month in Castleton?

October is the least humid month, with an average relative humidity of 74%.

What is the month with the shortest days in Castleton?

December has the shortest days of the year in Castleton, with an average of 9h and 24min of daylight.

What is the month with the lowest UV index in Castleton?

The month with the lowest UV index in Castleton is December, with an average maximum UV index of 1.

Average temperature
Castleton, IN

Average temperature - Castleton, IN

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure
Castleton, IN

Average pressure - Castleton, IN

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Castleton, IN

Average wind speed - Castleton, IN

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity
Castleton, IN

Average humidity - Castleton, IN

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall
Castleton, IN

Average rainfall - Castleton, IN

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is February (1.18").

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Average rainfall days
Castleton, IN

Average rainfall days - Castleton, IN

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6 days).

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Average snowfall
Castleton, IN

Average snowfall - Castleton, IN

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Castleton, IN

Average snowfall days - Castleton, IN

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
Castleton, IN

Average daylight / Average sunshine - Castleton, IN

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days
Castleton, IN

Average sunshine days - Castleton, IN

The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is May (11.3 days).

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Average visibility
Castleton, IN

Average visibility - Castleton, IN

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

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Castleton, Indiana, USA

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