May weather forecast
Radnor, IN

Share

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).

Temperature

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). May nights experience a consistent temperature drop to a fresh 54.7°F (12.6°C).

Humidity

The average relative humidity in May is 78%.

Rainfall

In May, in Radnor, the rain falls for 18.1 days. Throughout May, 2.56" (65mm) of precipitation is accumulated. In Radnor, during the entire year, the rain falls for 143.1 days and collects up to 20.91" (531mm) of precipitation.

Snowfall

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

Daylight

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

Sunshine

The average sunshine in May is 8.7h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Preventing sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

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 May, the average relative humidity is 78%.

How many days does it rain in May?

In May, the rain falls for 18.1 days. Throughout May, 2.56" (65mm) of precipitation is accumulated.

When it does not snow?

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

Does it snow in May?

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

What is the average length of the day in May?

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

When is the sunrise / sunset in May?

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, sunrise is at 6:18 am and sunset at 9:10 pm EDT.

How many hours of sunshine does Radnor have in May?

The average sunshine duration in May is 8.7h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Radnor, Indiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location