May weather forecast
Scranton, PA

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These houses are set in a hilly spot and circled by trees full of the beauty of the fall foliage on a typical day in the Scranton region of Pennsylvania
These houses are set in a hilly spot and circled by trees full of the beauty of the fall foliage on a typical day in the Scranton region of Pennsylvania

Weather in May

As Scranton moves further into May, the city experiences noticeable improvements in weather conditions with longer, warmer days setting the stage for outdoor activities. The city encounters the most rainfall in the year with 2.4" (61mm) spread across approximately 17.4 days, marking a shift from snowy to rainy conditions. Simultaneously, the wind speed begins to slow down, resulting in a more calming atmosphere throughout the city. With an increased UV index than the previous month, residents need to take necessary precautions to protect against sunburn.

Temperature

The average high-temperature increases in May, moving from a cool 54.1°F (12.3°C) in April to a refreshing 66.7°F (19.3°C). The average low-temperature, in May, is a frosty 47.7°F (8.7°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

The wettest months are May and July, with an average 2.4" (61mm) of rainfall.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Scranton aggregates 0.47" (12mm) of snow. Throughout the year, there are 48.4 snowfall days, and 22.01" (559mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 32min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:31 am and sunset at 8:29 pm EDT.

Sunshine

In May, the average sunshine is 7.9h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 5 in May translates into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To cut down UV radiation exposure by about half, sport a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

What are May temperatures?

In May, the average high-temperature and low-temperature in Scranton are 66.7°F (19.3°C) and 47.7°F (8.7°C) respectively.

What is the average humidity in May?

In May, the average relative humidity is 79%.

What is the rainiest month in Scranton?

The wettest months are May and July, with an average 2.4" (61mm) of rainfall.

How many days does it rain in May?

In Scranton, in May, it is raining for 17.4 days, with typically 2.4" (61mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Scranton aggregates 0.47" (12mm) of snow.

How many hours of daylight does Scranton have in May?

In Scranton, the average day length in May is 14h and 32min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:29 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 7.9h.

What is the month with the highest UV index?

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

How high is the UV index in May?

In Scranton, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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
Scranton, PA

Average temperature in May - Scranton, PA
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in May: 47.7°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in May
Scranton, PA

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

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Scranton, PA

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

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
Scranton, PA

Average humidity in May - Scranton, PA
  • Average humidity in May: 79%

The months with the highest relative humidity are February and December (85%).
The months with the lowest relative humidity are April, June and July (78%).

Average rainfall in May
Scranton, PA

Average rainfall in May - Scranton, PA
  • Average rainfall in May: 2.4"

The wettest months (with the highest rainfall) are May and July (2.4").
The driest months (with the least rainfall) are January and September (1.38").

Average rainfall days in May
Scranton, PA

Average rainfall days in May - Scranton, PA
  • Average rainfall days in May: 17.4 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in May
Scranton, PA

Average snowfall in May - Scranton, PA
  • Average snowfall in May: 0.47"

The month with the highest snowfall is March (5.08").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Scranton, PA

Average snowfall days in May - Scranton, PA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (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
Scranton, PA

Average daylight in May / Average sunshine in May - Scranton, PA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 7h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).

Average sunshine days in May
Scranton, PA

Average sunshine days in May - Scranton, PA
  • Average sunshine days in May: 11 days

The month with the most sunshine days is January (18.4 days).
The month with the least sunshine days is May (11 days).

Average UV index in May
Scranton, PA

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

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

Average cloud cover in May
Scranton, PA

Average cloud cover in May - Scranton, PA
  • Average cloud cover in May: 52

The months with the most cloud cover are February and December (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in May
Scranton, PA

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

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

Scranton, Pennsylvania, USA

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