Climate and monthly weather forecast
Radnor, IN

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Weather in January

January, the same as December, in Radnor, Indiana, is another subzero cold winter month, with an average temperature varying between 31.3°F (-0.4°C) and 19.4°F (-7°C). Radnor experiences its lowest average temperatures in January, reaching a peak of 31.3°F (-0.4°C) and a minimum of 19.4°F (-7°C). Weather in January »

Weather in February

The last month of the winter, February, is a cold month in Radnor, Indiana, with temperature in the range of an average low of 23.2°F (-4.9°C) and an average high of 36.1°F (2.3°C). January's transformation into February witnesses an average high-temperature of a cold 36.1°F (2.3°C), noting a minor change from the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Radnor, Indiana, with an average temperature fluctuating between 33.4°F (0.8°C) and 48.2°F (9°C). Radnor's weather in March shows a rise in the average high-temperature, moving up from February's wintry 36.1°F (2.3°C) to a frosty 48.2°F (9°C). Weather in March »

Weather in April

April is a moderate spring month in Radnor, Indiana, with an average temperature ranging between max 60.1°F (15.6°C) and min 43.7°F (6.5°C). The start of April is characterized by an increase in the average high-temperature, transitioning from a frosty 48.2°F (9°C) in March to a moderate 60.1°F (15.6°C). Weather in April »

Weather in May

May, the last month of the spring in Radnor, is an agreeable month, with an average temperature fluctuating between 54.7°F (12.6°C) and 71.6°F (22°C). With the onset of May, Radnor's weather sees a temperature rise, transitioning from a refreshing 60.1°F (15.6°C) in April to a pleasant 71.6°F (22°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Radnor, Indiana, with an average temperature varying between 79.3°F (26.3°C) and 62.2°F (16.8°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's agreeable 71.6°F (22°C) to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Radnor, Indiana, is another warm summer month, with an average temperature fluctuating between 81°F (27.2°C) and 64°F (17.8°C). July, recognised by an average high temperature of 81°F (27.2°C) and a low of 64°F (17.8°C), is Radnor's warmest month. For most parts of July, the heat index is calculated to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Radnor, Indiana, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 62.2°F (16.8°C). Radnor transitions into August recording an average high-temperature of a still moderately hot 79.7°F (26.5°C), closely aligning with the preceding month's temperature. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Radnor, Indiana, with an average temperature fluctuating between 75°F (23.9°C) and 56.8°F (13.8°C). The high-temperature average in September for Radnor is a still warm 75°F (23.9°C), staying closely aligned with August's conditions. Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Radnor, Indiana, with an average temperature fluctuating between 46.6°F (8.1°C) and 62.4°F (16.9°C). Transition from September to October is accompanied by a temperature drop, with average high-temperatures decreasing from a warm 75°F (23.9°C) to an enjoyable 62.4°F (16.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Radnor, Indiana, with an average temperature varying between 48.2°F (9°C) and 35.1°F (1.7°C). Radnor in November undergoes a mild reduction in the average high-temperature, shifting from October's enjoyable 62.4°F (16.9°C) to a chilly 48.2°F (9°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Radnor, Indiana, with an average temperature varying between 37°F (2.8°C) and 27.1°F (-2.7°C). Radnor's average high-temperature decreases in December, falling from a frosty 48.2°F (9°C) in November to a cold 37°F (2.8°C). Weather in December »
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

The coldest time of the year is January, with temperatures averaging a high of 31.3°F (-0.4°C) and a low of 19.4°F (-7°C).

How many days does it rain?

Throughout the year, there are 143.1 rainfall days, and 20.91" (531mm) of precipitation is accumulated.

When does it snow in Radnor?

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

How many days does it snow in Radnor?

In Radnor, Indiana, during the entire year, snow falls for 37.1 days and aggregates up to 8.15" (207mm) of snow.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.8h of sunshine.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 8.7 days and typically aggregates up to 2.44" (62mm) 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.

What is the wettest month?

April is the month with the most rainfall. Rain falls for 14.8 days and accumulates 2.64" (67mm) of precipitation.

When it does not snow?

In Radnor, snow does not fall in May through September.

When are the longest days?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What is the month with the most sunshine?

June and July, with an average of 10h of sunshine, are months with the most sunshine in Radnor.

What is the month with the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What part of the year is the hottest in Radnor?

July tends to be the warmest month, with temperatures averaging a daily high of 81°F (27.2°C) and a low of 64°F (17.8°C).

What is the most humid month?

With an average relative humidity of 84%, July is the most humid month.

What is the least humid month?

October is the least humid month, with an average relative humidity of 72%.

What is the driest month?

December is the month with the least rainfall. Rain falls for 8.6 days and accumulates 1.18" (30mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

When is the lowest UV index?

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

Average temperature
Radnor, IN

Average temperature - Radnor, IN

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure
Radnor, IN

Average pressure - Radnor, IN

The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Radnor, IN

Average wind speed - Radnor, IN

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average rainfall
Radnor, IN

Average rainfall - Radnor, IN

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

Average rainfall days
Radnor, IN

Average rainfall days - Radnor, IN

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6 days).

Average snowfall
Radnor, IN

Average snowfall - Radnor, IN

The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Radnor, IN

Average snowfall days - Radnor, IN

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Radnor, IN

Average daylight / Average sunshine - Radnor, 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 18min).

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days
Radnor, IN

Average sunshine days - Radnor, IN

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.2 days).

Average visibility
Radnor, IN

Average visibility - Radnor, IN

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

Radnor, Indiana, USA

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