May weather forecast
Llewellyn Corners, PA

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Weather in May

The last month of the spring, May, is an enjoyable month in Llewellyn Corners, Pennsylvania, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 67.6°F (19.8°C).

Temperature

The beginning of May marks a shift in the average high-temperature, moving from April's moderate 55.4°F (13°C) to a still refreshing 67.6°F (19.8°C). Llewellyn Corners experiences an average low-temperature reading of 48°F (8.9°C) throughout May.

Humidity

In May, the average relative humidity in Llewellyn Corners is 79%.

Rainfall

In Llewellyn Corners, in May, it is raining for 15.4 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 142.7 rainfall days, and 13.19" (335mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Llewellyn Corners are January through May, October through December. May is the last month it regularly snows in Llewellyn Corners. During 0.2 snowfall days, in May, Llewellyn Corners aggregates 0.04" (1mm) of snow. Throughout the year, there are 49.9 snowfall days, and 9.92" (252mm) of snow is accumulated.

Daylight

In Llewellyn Corners, Pennsylvania, the average length of the day in May is 14h and 31min.
On the first day of May in Llewellyn Corners, sunrise is at 5:59 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:29 pm EDT.

Sunshine

In Llewellyn Corners, Pennsylvania, the average sunshine in May is 8.1h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Llewellyn Corners. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a regular UV index of 5 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What are May temperatures in Llewellyn Corners?

The average high-temperature, in May, in Llewellyn Corners, is 67.6°F (19.8°C), while the average low-temperature is 48°F (8.9°C).

What is the average humidity in May in Llewellyn Corners?

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

How many days does it rain in May in Llewellyn Corners?

In May, the rain falls for 15.4 days. Throughout May, 1.18" (30mm) of precipitation is accumulated.

What is the last month it snows in Llewellyn Corners?

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

How many hours of daylight does Llewellyn Corners have in May?

The average day length in May in Llewellyn Corners is 14h and 31min.

When is the sunrise / sunset in May in Llewellyn Corners?

On the first day of May, sunrise is at 5:59 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:29 pm EDT.

How long on average sun shines in May in Llewellyn Corners?

In May, the average sunshine duration in Llewellyn Corners, Pennsylvania, is 8.1h.

What are the months with the highest UV index in Llewellyn Corners?

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

How high is the UV index in May in Llewellyn Corners?

In Llewellyn Corners, Pennsylvania, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Llewellyn Corners, PA

Average temperature in May - Llewellyn Corners, PA
  • Average high temperature in May: 67.6°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in May: 48°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in May
Llewellyn Corners, PA

Average pressure in May - Llewellyn Corners, 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).

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Average wind speed in May
Llewellyn Corners, PA

Average wind speed in May - Llewellyn Corners, PA
  • Average wind speed in May: 6.5mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in May
Llewellyn Corners, PA

Average humidity in May - Llewellyn Corners, PA
  • Average humidity in May: 79%

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in May
Llewellyn Corners, PA

Average rainfall in May - Llewellyn Corners, PA
  • Average rainfall in May: 1.18"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.71").

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Average rainfall days in May
Llewellyn Corners, PA

Average rainfall days in May - Llewellyn Corners, PA
  • Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in May
Llewellyn Corners, PA

Average snowfall in May - Llewellyn Corners, PA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Llewellyn Corners, PA

Average snowfall days in May - Llewellyn Corners, PA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (13.7 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
Llewellyn Corners, PA

Average daylight in May / Average sunshine in May - Llewellyn Corners, 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 18min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

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Average sunshine days in May
Llewellyn Corners, PA

Average sunshine days in May - Llewellyn Corners, PA
  • Average sunshine days in May: 13.2 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (11.6 days).

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Average UV index in May
Llewellyn Corners, PA

Average UV index in May - Llewellyn Corners, 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).

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Average cloud cover in May
Llewellyn Corners, PA

Average cloud cover in May - Llewellyn Corners, PA
  • Average cloud cover in May: 50

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).

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Average visibility in May
Llewellyn Corners, PA

Average visibility in May - Llewellyn Corners, 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).

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Llewellyn Corners, Pennsylvania, USA

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