May weather forecast
Woodlyn, PA

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Weather in May

May, the last month of the spring in Woodlyn, is an agreeable month, with an average temperature ranging between max 72°F (22.2°C) and min 55°F (12.8°C).

Temperature

With the beginning of May, Woodlyn's average high-temperature sees an increase, transitioning from a refreshing 61.5°F (16.4°C) in April to an agreeable 72°F (22.2°C). In May, Woodlyn experiences a temperature dip to an average of 55°F (12.8°C) at night.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Woodlyn, during May, the rain falls for 16.3 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Woodlyn, during the entire year, the rain falls for 148.4 days and collects up to 25.94" (659mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Woodlyn aggregates 0.16" (4mm) of snow. Throughout the year, in Woodlyn, there are 12.6 snowfall days, and 7.28" (185mm) of snow is accumulated.

Daylight

In Woodlyn, the average length of the day in May is 14h and 24min.
On the first day of the month, sunrise is at 6:00 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:23 pm EDT.

Sunshine

In May, the average sunshine is 8.7h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 6 suggests this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

An average high-temperature, in May, in Woodlyn, is 72°F (22.2°C) and the average low-temperature is 55°F (12.8°C).

What is the average humidity in May in Woodlyn?

In May, the average relative humidity is 76%.

How many days does it rain in May?

In Woodlyn, in May, during 16.3 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Woodlyn aggregates 0.16" (4mm) of snow.

How many hours of daylight does Woodlyn have in May?

In May, the average day length is 14h and 24min.

When is the sunrise / sunset in May in Woodlyn?

On the first day of May, sunrise is at 6:00 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:23 pm EDT.

How long on average sun shines in May?

In Woodlyn, the average sunshine duration in May is 8.7h.

What is the month with the highest UV index?

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

What is the UV index intensity in May?

In Woodlyn, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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
Woodlyn, PA

Average temperature in May - Woodlyn, PA
  • Average high temperature in May: 72°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in May
Woodlyn, PA

Average pressure in May - Woodlyn, PA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Woodlyn, PA

Average wind speed in May - Woodlyn, PA
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in May
Woodlyn, PA

Average humidity in May - Woodlyn, PA
  • Average humidity in May: 76%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

Average rainfall in May
Woodlyn, PA

Average rainfall in May - Woodlyn, PA
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").

Average rainfall days in May
Woodlyn, PA

Average rainfall days in May - Woodlyn, PA
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in May
Woodlyn, PA

Average snowfall in May - Woodlyn, PA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Woodlyn, PA

Average snowfall days in May - Woodlyn, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Woodlyn, PA

Average daylight in May / Average sunshine in May - Woodlyn, PA
  • 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 24min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in May
Woodlyn, PA

Average sunshine days in May - Woodlyn, PA
  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in May
Woodlyn, PA

Average UV index in May - Woodlyn, PA
  • 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, November and December (UV index 2).

Average cloud cover in May
Woodlyn, PA

Average cloud cover in May - Woodlyn, PA
  • Average cloud cover in May: 45

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Woodlyn, PA

Average visibility in May - Woodlyn, PA
  • Average visibility in May: 6mi

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

Woodlyn, Pennsylvania, USA

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