Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset is marked by a temperature increase, moving from a mild 59.9°F (15.5°C) in April to a pleasant 71.1°F (21.7°C). During the month of May, Radnor's nighttime temperature lowers to an average of 53.6°F (12°C).Humidity
The average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall in Radnor. Rain falls for 18.7 days and accumulates 3.82" (97mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in May in Radnor is 14h and 26min.On the first day of May in Radnor, sunrise is at 6:30 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:56 pm EDT.
Sunshine
The average sunshine in May is 9.1h.UV index
The average daily maximum UV index in May in Radnor is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Radnor?
What is the average humidity in May in Radnor?
What is the wettest month in Radnor?
How many days does it rain in May in Radnor?
When it does not snow in Radnor?
Does it snow in Radnor in May?
How many hours of daylight does Radnor have in May?
What time are sunrise and sunset in May in Radnor?
How long on average sun shines in May in Radnor?
How high is the UV index in May in Radnor?
Average temperature in May
Radnor, OH
- Average high temperature in May: 71.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in May
Radnor, OH
- Average pressure in May: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Radnor, OH
- Average wind speed in May: 7.7mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in May
Radnor, OH
- Average humidity in May: 78%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in May
Radnor, OH
- Average rainfall in May: 3.82"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in May
Radnor, OH
- Average rainfall days in May: 18.7 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (10 days).
Average snowfall in May
Radnor, OH
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Radnor, OH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Radnor, OH
- Average daylight in May: 14h and 2min
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: 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 30min).
Average sunshine days in May
Radnor, OH
- Average sunshine days in May: 9.4 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in May
Radnor, OH
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Radnor, OH
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Radnor, OH
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Radnor, Ohio, USA
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