May weather forecast
Shelly, PA

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Weather in May

May, the last month of the spring in Shelly, is a pleasant month, with an average temperature fluctuating between 70.3°F (21.3°C) and 51.4°F (10.8°C).

Temperature

Shelly's May weather brings a rise in high-temperatures, moving from a mild 59.7°F (15.4°C) in April to a pleasant 70.3°F (21.3°C). In the month of May, the average temperature in Shelly dips to a fresh 51.4°F (10.8°C) during the night.

Humidity

The average relative humidity in May in Shelly is 78%.

Rainfall

The wettest months are May and July, with an average 3.07" (78mm) of rainfall.

Snowfall

January through May, October through December are months with snowfall in Shelly. May is the last month it regularly snows in Shelly. During 0.1 snowfall days, in May, Shelly aggregates 0.2" (5mm) of snow. In Shelly, during the entire year, snow falls for 29.3 days and aggregates up to 16.57" (421mm) of snow.

Daylight

In May, the average length of the day is 14h and 27min.
On the first day of May, sunrise is at 5:59 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:25 pm EDT.

Sunshine

In May, the average sunshine in Shelly, Pennsylvania, is 8.3h.

UV index

The months with the highest UV index are May through July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 6 in May transforms into this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

What is the average May temperature in Shelly?

In May, the average high-temperature and low-temperature in Shelly, Pennsylvania, are 70.3°F (21.3°C) and 51.4°F (10.8°C) respectively.

What is the average humidity in May in Shelly?

In May, the average relative humidity in Shelly is 78%.

What is the wettest month in Shelly?

The months with the most rainfall in Shelly are May and July, with an average 3.07" (78mm) of precipitation.

How many days does it rain in May in Shelly?

In Shelly, in May, it is raining for 17 days, with typically 3.07" (78mm) of accumulated precipitation.

What is the last month it snows in Shelly?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Shelly aggregates 0.2" (5mm) of snow.

What is the average length of the day in May in Shelly?

The average day length in May is 14h and 27min.

When are sunrise and sunset in May in Shelly?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 7:57 pm. On the last day of the month, in Shelly, sunrise is at 5:33 am and sunset at 8:25 pm EDT.

How many hours of sunshine does Shelly have in May?

In May, the average sunshine duration is 8.3h.

What is the month with the highest UV index in Shelly?

The months with the highest UV index in Shelly are May through July, with an average maximum UV index of 6.

How high is the UV index in May in Shelly?

In May, the average daily maximum UV index in Shelly is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Shelly, PA

Average temperature in May - Shelly, PA
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure in May
Shelly, PA

Average pressure in May - Shelly, 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
Shelly, PA

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in May
Shelly, PA

Average humidity in May - Shelly, PA
  • Average humidity in May: 78%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).

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Average rainfall in May
Shelly, PA

Average rainfall in May - Shelly, PA
  • Average rainfall in May: 3.07"

The wettest months (with the highest rainfall) are May and July (3.07").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in May
Shelly, PA

Average rainfall days in May - Shelly, PA
  • Average rainfall days in May: 17 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in May
Shelly, PA

Average snowfall in May - Shelly, PA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is March (4.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Shelly, PA

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

The month with the highest number of snowfall days is February (8.3 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
Shelly, PA

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

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in May
Shelly, PA

Average sunshine days in May - Shelly, PA
  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in May
Shelly, PA

Average UV index in May - Shelly, PA
  • Average UV index in May: 6

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

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Average cloud cover in May
Shelly, PA

Average cloud cover in May - Shelly, PA
  • Average cloud cover in May: 48

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in May
Shelly, PA

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

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

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Shelly, Pennsylvania, USA

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