May weather forecast
Green Hills, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Green Hills, Pennsylvania, with an average temperature varying between 72.1°F (22.3°C) and 51.4°F (10.8°C).

Temperature

Green Hills experiences a temperature shift with the start of May, with average high-temperatures moving from a comfortable 61.3°F (16.3°C) in April to a pleasant 72.1°F (22.3°C). Green Hills's temperature tends to fall to an average low of 51.4°F (10.8°C) during the nights of May.

Humidity

The average relative humidity in May in Green Hills, Pennsylvania, is 79%.

Rainfall

In Green Hills, during May, the rain falls for 17.2 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Green Hills, during the entire year, the rain falls for 143 days and collects up to 14.8" (376mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Green Hills aggregates 0.04" (1mm) of snow. Throughout the year, in Green Hills, Pennsylvania, there are 33.5 snowfall days, and 4.88" (124mm) of snow is accumulated.

Daylight

In Green Hills, the average length of the day in May is 14h and 25min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:16 pm. On the last day of May, sunrise is at 5:54 am and sunset at 8:43 pm EDT.

Sunshine

The average sunshine in May in Green Hills is 8.8h.

UV index

In May, the average daily maximum UV index in Green Hills, Pennsylvania, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 5 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What is the average May temperature in Green Hills?

An average high-temperature, in May, in Green Hills, is 72.1°F (22.3°C) and the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in May in Green Hills?

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

How much does it rain in Green Hills in May?

In Green Hills, in May, it is raining for 17.2 days, with typically 1.61" (41mm) of accumulated precipitation.

What is the last month it snows in Green Hills?

May is the last month it regularly snows in Green Hills. During 0.2 snowfall days, in May, Green Hills aggregates 0.04" (1mm) of snow.

What is the average length of the day in May in Green Hills?

In Green Hills, Pennsylvania, the average day length in May is 14h and 25min.

What time are sunrise and sunset in May in Green Hills?

In May, on the first day of the month, sunrise is at 6:19 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:43 pm EDT.

How many hours of sunshine does Green Hills have in May?

In May, the average sunshine duration is 8.8h.

What is the UV index reading in May in Green Hills?

In May, the average daily maximum UV index in Green Hills is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Green Hills, PA

Average temperature in May - Green Hills, PA
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in May: 51.4°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 (20.8°F).

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Average pressure in May
Green Hills, PA

Average pressure in May - Green Hills, 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
Green Hills, PA

Average wind speed in May - Green Hills, PA
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in May
Green Hills, PA

Average humidity in May - Green Hills, PA
  • Average humidity in May: 79%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in May
Green Hills, PA

Average rainfall in May - Green Hills, PA
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is July (1.65").
The driest months (with the least rainfall) are January and November (0.94").

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Average rainfall days in May
Green Hills, PA

Average rainfall days in May - Green Hills, PA
  • Average rainfall days in May: 17.2 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in May
Green Hills, PA

Average snowfall in May - Green Hills, PA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Green Hills, PA

Average snowfall days in May - Green Hills, PA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (9.8 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
Green Hills, PA

Average daylight in May / Average sunshine in May - Green Hills, 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 5min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in May
Green Hills, PA

Average sunshine days in May - Green Hills, PA
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in May
Green Hills, PA

Average UV index in May - Green Hills, PA
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Green Hills, PA

Average cloud cover in May - Green Hills, PA
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in May
Green Hills, PA

Average visibility in May - Green Hills, PA
  • Average visibility in May: 5mi

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

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Green Hills, Pennsylvania, USA

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