May weather forecast
Percy, PA

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Weather in May

May, the last month of the spring in Percy, is an agreeable month, with an average temperature varying between 70.7°F (21.5°C) and 50.2°F (10.1°C).

Temperature

Percy sees an increase in the average high-temperature with the arrival of May, moving from April's refreshing 59.9°F (15.5°C) to an agreeable 70.7°F (21.5°C). May nights in Percy observe an average temperature dip to a fresh 50.2°F (10.1°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

The month with the most rainfall in Percy is May, when the rain falls for 18.1 days and typically aggregates up to 1.97" (50mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Percy. During 0.3 snowfall days, in May, Percy aggregates 0.24" (6mm) of snow. In Percy, during the entire year, snow falls for 58.2 days and aggregates up to 17.44" (443mm) of snow.

Daylight

The average length of the day in May in Percy is 14h and 24min.
On the first day of the month, sunrise is at 6:17 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:52 am and sunset at 8:40 pm EDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

In Percy, Pennsylvania, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 5 during May translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are May temperatures in Percy?

In Percy, 70.7°F (21.5°C) is the average high-temperature and 50.2°F (10.1°C) is the average low-temperature during May.

What is the average humidity in May in Percy?

In Percy, Pennsylvania, the average relative humidity in May is 79%.

What is the rainiest month in Percy?

May is the month with the most rainfall in Percy. Rain falls for 18.1 days and accumulates 1.97" (50mm) of precipitation.

How many days does it rain in May in Percy?

In Percy, during May, the rain falls for 18.1 days and regularly aggregates up to 1.97" (50mm) of precipitation.

What is the last month it snows in Percy?

May is the last month it regularly snows in Percy, Pennsylvania. During 0.3 snowfall days, in May, Percy aggregates 0.24" (6mm) of snow.

How many hours of daylight does Percy have in May?

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

When is the sunrise / sunset in May in Percy?

On the first day of May in Percy, Pennsylvania, sunrise is at 6:17 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:40 pm EDT.

How many hours of sunshine does Percy have in May?

In Percy, the average sunshine duration in May is 8.6h.

What is the UV index reading in May in Percy?

The average daily maximum UV index in May in Percy is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Percy, PA

Average temperature in May - Percy, PA
  • Average high temperature in May: 70.7°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in May: 50.2°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in May
Percy, PA

Average pressure in May - Percy, 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).

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Average wind speed in May
Percy, PA

Average wind speed in May - Percy, PA
  • Average wind speed in May: 6.4mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in May
Percy, PA

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

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (77%).

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Average rainfall in May
Percy, PA

Average rainfall in May - Percy, PA
  • Average rainfall in May: 1.97"

The wettest month (with the highest rainfall) is May (1.97").
The driest months (with the least rainfall) are September and November (0.91").

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Average rainfall days in May
Percy, PA

Average rainfall days in May - Percy, PA
  • 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 February (7.9 days).

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Average snowfall in May
Percy, PA

Average snowfall in May - Percy, PA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Percy, PA

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

The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Percy, 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 August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days in May
Percy, PA

Average sunshine days in May - Percy, PA
  • Average sunshine days in May: 10.3 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is January (8.6 days).

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Average UV index in May
Percy, PA

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

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in May
Percy, PA

Average cloud cover in May - Percy, PA
  • Average cloud cover in May: 47

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in May
Percy, PA

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

The month with the highest visibility is April (6mi).
The month with the lowest visibility is January (4mi).

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Percy, Pennsylvania, USA

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