May weather forecast
Radnor, WV

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Weather in May

The last month of the spring, May, is a warm month in Radnor, West Virginia, with an average temperature varying between 55°F (12.8°C) and 76.3°F (24.6°C).

Temperature

The arrival of May brings a temperature shift, with the average high-temperature escalating from an enjoyable 65.8°F (18.8°C) in April to a moderately hot 76.3°F (24.6°C). Throughout May, Radnor records an average temperature of 55°F (12.8°C) at night.

Humidity

The average relative humidity in May is 77%.

Rainfall

In Radnor, in May, it is raining for 19.1 days, with typically 3.31" (84mm) of accumulated precipitation. Throughout the year, in Radnor, West Virginia, there are 176.7 rainfall days, and 33.82" (859mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Radnor.

Daylight

The average length of the day in May in Radnor is 14h and 15min.
On the first day of the month, sunrise is at 6:32 am and sunset at 8:21 pm. On the last day of May, in Radnor, West Virginia, sunrise is at 6:08 am and sunset at 8:46 pm EDT.

Sunshine

The average sunshine in May in Radnor is 9.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Radnor, West Virginia. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during May leads to these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Radnor in May?

The average high-temperature, in May, in Radnor, is 76.3°F (24.6°C), while the average low-temperature is 55°F (12.8°C).

What is the average humidity in May in Radnor?

The average relative humidity in May in Radnor is 77%.

How much does it rain in Radnor in May?

In May, in Radnor, the rain falls for 19.1 days. Throughout May, 3.31" (84mm) of precipitation is accumulated.

When it does not snow in Radnor?

May through September are months without snowfall in Radnor.

Does it snow in Radnor in May?

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

What is the average length of the day in May in Radnor?

The average day length in May in Radnor is 14h and 15min.

When are sunrise and sunset in May in Radnor?

In May, on the first day of the month, sunrise is at 6:32 am and sunset at 8:21 pm. On the last day of the month, in Radnor, West Virginia, sunrise is at 6:08 am and sunset at 8:46 pm EDT.

How many hours of sunshine does Radnor have in May?

In Radnor, West Virginia, the average sunshine duration in May is 9.2h.

What is the month with the highest UV index in Radnor?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Radnor.

What is the UV index intensity in May in Radnor?

In May, the average daily maximum UV index in Radnor is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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, WV

Average temperature in May - Radnor, WV
  • Average high temperature in May: 76.3°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in May
Radnor, WV

Average pressure in May - Radnor, WV
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
Radnor, WV

Average wind speed in May - Radnor, WV
  • Average wind speed in May: 5.7mph

The windiest months (with the highest average wind speed) are January, February and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in May
Radnor, WV

Average humidity in May - Radnor, WV
  • Average humidity in May: 77%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).

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Average rainfall in May
Radnor, WV

Average rainfall in May - Radnor, WV
  • Average rainfall in May: 3.31"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in May
Radnor, WV

Average rainfall days in May - Radnor, WV
  • Average rainfall days in May: 19.1 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is November (10.6 days).

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Average snowfall in May
Radnor, WV

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

The month with the highest snowfall is February (3.58").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Radnor, WV

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

The month with the highest number of snowfall days is January (9.4 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, WV

Average daylight in May / Average sunshine in May - Radnor, WV
  • Average daylight in May: 14h and 1min

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 36min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in May
Radnor, WV

Average sunshine days in May - Radnor, WV
  • Average sunshine days in May: 9.7 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9.7 days).

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Average UV index in May
Radnor, WV

Average UV index in May - Radnor, WV
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in May
Radnor, WV

Average cloud cover in May - Radnor, WV
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in May
Radnor, WV

Average visibility in May - Radnor, WV
  • Average visibility in May: 5mi

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

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Radnor, West Virginia, USA

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