May weather forecast
Addison, PA

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Weather in May

May, the last month of the spring in Addison, is a pleasant month, with an average temperature fluctuating between 68.5°F (20.3°C) and 48.9°F (9.4°C).

Temperature

In Addison, the average high-temperature in May rises, from a refreshing 57.9°F (14.4°C) in April, to an agreeable 68.5°F (20.3°C). Throughout the month of May, Addison witnesses an average low-temperature of 48.9°F (9.4°C).

Humidity

In Addison, Pennsylvania, the average relative humidity in May is 81%.

Rainfall

May is the month with the most rainfall. Rain falls for 20.9 days and accumulates 3.43" (87mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.5 snowfall days, in May, Addison aggregates 0.94" (24mm) of snow. Throughout the year, there are 48.5 snowfall days, and 26.69" (678mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 23min.
On the first day of May, sunrise is at 6:16 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:38 pm EDT.

Sunshine

In Addison, the average sunshine in May is 8.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 5 suggests this advice:
Be vigilant - Preventing sunburn is recommended. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

What are May temperatures?

In May, in Addison, the average high-temperature is 68.5°F (20.3°C), and the average low-temperature is 48.9°F (9.4°C).

What is the average humidity in May?

In May, the average relative humidity is 81%.

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 20.9 days and accumulates 3.43" (87mm) of precipitation.

How many days does it rain in May?

In Addison, during May, the rain falls for 20.9 days and regularly aggregates up to 3.43" (87mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.5 snowfall days, in May, Addison aggregates 0.94" (24mm) of snow.

How many hours of daylight does Addison have in May?

In May, the average day length is 14h and 23min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:16 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:38 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.4h.

What are the months with the highest UV index?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index intensity in May?

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

Average temperature in May
Addison, PA

Average temperature in May - Addison, PA
  • Average high temperature in May: 68.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in May: 48.9°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in May
Addison, PA

Average pressure in May - Addison, PA
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in May
Addison, PA

Average wind speed in May - Addison, PA
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in May
Addison, PA

Average humidity in May - Addison, PA
  • Average humidity in May: 81%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June, July and August (79%).

Average rainfall in May
Addison, PA

Average rainfall in May - Addison, PA
  • Average rainfall in May: 3.43"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.85").

Average rainfall days in May
Addison, PA

Average rainfall days in May - Addison, PA
  • Average rainfall days in May: 20.9 days

The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in May
Addison, PA

Average snowfall in May - Addison, PA
  • Average snowfall in May: 0.94"

The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Addison, PA

Average snowfall days in May - Addison, PA
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Addison, PA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in May
Addison, PA

Average sunshine days in May - Addison, PA
  • Average sunshine days in May: 8.3 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (8.3 days).

Average UV index in May
Addison, PA

Average UV index in May - Addison, PA
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Addison, PA

Average cloud cover in May - Addison, PA
  • Average cloud cover in May: 50

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility in May
Addison, PA

Average visibility in May - Addison, PA
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).

Addison, Pennsylvania, USA

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