May weather forecast
Slatedale, PA

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Weather in May

May, the last month of the spring in Slatedale, is a pleasant month, with an average temperature fluctuating between 49.6°F (9.8°C) and 68.2°F (20.1°C).

Temperature

An escalation in the average high-temperature is seen with the onset of May, moving from a moderate 56.8°F (13.8°C) in April to an agreeable 68.2°F (20.1°C). Slatedale encounters an average low-temperature of 49.6°F (9.8°C) during May nights.

Humidity

In May, the average relative humidity is 80%.

Rainfall

In Slatedale, during May, the rain falls for 17.4 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Slatedale, Pennsylvania, during the entire year, the rain falls for 155.1 days and collects up to 29.45" (748mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Slatedale aggregates 0.08" (2mm) of snow. Throughout the year, there are 34 snowfall days, and 16.73" (425mm) of snow is accumulated.

Daylight

In Slatedale, the average length of the day in May is 14h and 28min.
On the first day of May, sunrise is at 6:00 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:27 pm EDT.

Sunshine

In Slatedale, the average sunshine in May is 8.2h.

UV index

In Slatedale, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 during May translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

The high-temperature during May is 68.2°F (20.1°C) and the low-temperature is 49.6°F (9.8°C).

What is the average humidity in May?

In Slatedale, the average relative humidity in May is 80%.

How many days does it rain in May?

In Slatedale, in May, during 17.4 rainfall days, 2.87" (73mm) 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, Slatedale aggregates 0.08" (2mm) of snow.

How many hours of daylight does Slatedale have in May?

The average day length in May is 14h and 28min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:00 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:27 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.2h.

What is the UV index reading in May?

In Slatedale, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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
Slatedale, PA

Average temperature in May - Slatedale, PA
  • Average high temperature in May: 68.2°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in May: 49.6°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in May
Slatedale, PA

Average pressure in May - Slatedale, 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
Slatedale, PA

Average wind speed in May - Slatedale, PA
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in May
Slatedale, PA

Average humidity in May - Slatedale, PA
  • Average humidity in May: 80%

The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in May
Slatedale, PA

Average rainfall in May - Slatedale, PA
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in May
Slatedale, PA

Average rainfall days in May - Slatedale, 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 (7.6 days).

Average snowfall in May
Slatedale, PA

Average snowfall in May - Slatedale, PA
  • Average snowfall in May: 0.08"

The months with the highest snowfall are January and March (4.41").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Slatedale, PA

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

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Slatedale, PA
  • 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in May
Slatedale, PA

Average sunshine days in May - Slatedale, PA
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in May
Slatedale, PA

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Slatedale, PA

Average cloud cover in May - Slatedale, PA
  • Average cloud cover in May: 49

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in May
Slatedale, PA

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

Slatedale, Pennsylvania, USA

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