May weather forecast
Radnor, IN

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Weather in May

The last month of the spring, May, is an agreeable month in Radnor, Indiana, with an average temperature fluctuating between 54.7°F (12.6°C) and 71.6°F (22°C).

Temperature

The shift into May is characterized by a rise in the average high-temperature, transitioning from April's mild 60.1°F (15.6°C) to an agreeable 71.6°F (22°C). Radnor, in May, observes a steady average low-temperature of 54.7°F (12.6°C).

Humidity

The average relative humidity in May is 78%.

Rainfall

In Radnor, during May, the rain falls for 18.1 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 143.1 rainfall days, and 20.91" (531mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day is 14h and 27min.
On the first day of May, sunrise is at 6:44 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:10 pm EDT.

Sunshine

The average sunshine in May in Radnor, Indiana, is 8.7h.

UV index

The average daily maximum UV index in May in Radnor is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 5 suggests this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What is the usual temperature for Radnor in May?

During May, Radnor experiences an average high-temperature of 71.6°F (22°C) and a low-temperature of 54.7°F (12.6°C).

What is the average humidity in May in Radnor?

The average relative humidity in May in Radnor, Indiana, is 78%.

How many days does it rain in May in Radnor?

In Radnor, Indiana, during May, the rain falls for 18.1 days and regularly aggregates up to 2.56" (65mm) of precipitation.

When it does not snow in Radnor?

May through September are months without snowfall in Radnor, Indiana.

Does it snow in Radnor in May?

In May, in Radnor, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Radnor have in May?

In Radnor, the average day length in May is 14h and 27min.

When is the sunrise / sunset in May in Radnor?

In May, on the first day of the month, sunrise is at 6:44 am and sunset at 8:42 pm. On the last day of the month, in Radnor, Indiana, sunrise is at 6:18 am and sunset at 9:10 pm EDT.

How many hours of sunshine does Radnor have in May?

In May, the average sunshine duration is 8.7h.

How high is the UV index in May in Radnor?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Radnor, IN

Average temperature in May - Radnor, IN
  • Average high temperature in May: 71.6°F

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).

  • Average low temperature in May: 54.7°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).

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Average pressure in May
Radnor, IN

Average pressure in May - Radnor, IN
  • Average pressure in May: 29.97"Hg

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).

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Average wind speed in May
Radnor, IN

Average wind speed in May - Radnor, IN
  • Average wind speed in May: 8.5mph

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).

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Average humidity in May
Radnor, IN

Average humidity in May - Radnor, IN
  • Average humidity in May: 78%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in May
Radnor, IN

Average rainfall in May - Radnor, IN
  • Average rainfall in May: 2.56"

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

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Average rainfall days in May
Radnor, IN

Average rainfall days in May - Radnor, IN
  • Average rainfall days in May: 18.1 days

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).

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Average snowfall in May
Radnor, IN

Average snowfall in May - Radnor, IN
  • Average snowfall in May: 0"

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

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Average snowfall days in May
Radnor, IN

Average snowfall days in May - Radnor, IN
  • Average snowfall days in May: 0.1 days

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).

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Average daylight in May /
Average sunshine in May
Radnor, IN

Average daylight in May / Average sunshine in May - Radnor, IN
  • Average daylight in May: 14h and 3min

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).

  • Average sunshine in May: 8h and 4min

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).

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Average sunshine days in May
Radnor, IN

Average sunshine days in May - Radnor, IN
  • Average sunshine days in May: 11.2 days

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

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Average UV index in May
Radnor, IN

Average UV index in May - Radnor, IN
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Radnor, IN

Average cloud cover in May - Radnor, IN
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 33).

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Average visibility in May
Radnor, IN

Average visibility in May - Radnor, IN
  • Average visibility in May: 6mi

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).

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Radnor, Indiana, USA

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