May weather forecast
Mountain Top, PA

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Weather in May

The last month of the spring, May, is an enjoyable month in Mountain Top, 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

May's onset witnesses a shift in the average high-temperature, moving from a mild 55.4°F (13°C) in April to a comfortable 67.6°F (19.8°C). In Mountain Top, an average nighttime temperature of 48°F (8.9°C) is expected during May.

Humidity

The average relative humidity in May is 79%.

Rainfall

In Mountain Top, during May, the rain falls for 15.4 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 142.7 rainfall days, and 13.19" (335mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Mountain Top 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 Mountain Top, the average length of the day in May is 14h and 31min.
On the first day of May, sunrise is at 6:00 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:29 pm EDT.

Sunshine

In Mountain Top, Pennsylvania, the average sunshine in May is 8.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the UV index of 5 transforms into the following advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

May temperatures vary between a high-temperature of 67.6°F (19.8°C) and a low-temperature of 48°F (8.9°C).

What is the average humidity in May?

In May, the average relative humidity is 79%.

How many days does it rain in May in Mountain Top?

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?

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

What is the average length of the day in May?

In Mountain Top, the average day length in May is 14h and 31min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:00 am and sunset at 8:01 pm. On the last day of the month, in Mountain Top, sunrise is at 5:33 am and sunset at 8:29 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.1h.

What are the months with the highest UV index?

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

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Mountain Top, PA

Average temperature in May - Mountain Top, 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).

Average pressure in May
Mountain Top, PA

Average pressure in May - Mountain Top, 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
Mountain Top, PA

Average wind speed in May - Mountain Top, 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).

Average humidity in May
Mountain Top, PA

Average humidity in May - Mountain Top, 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%).

Average rainfall in May
Mountain Top, PA

Average rainfall in May - Mountain Top, 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").

Average rainfall days in May
Mountain Top, PA

Average rainfall days in May - Mountain Top, 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).

Average snowfall in May
Mountain Top, PA

Average snowfall in May - Mountain Top, 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").

Average snowfall days in May
Mountain Top, PA

Average snowfall days in May - Mountain Top, 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).

Average daylight in May /
Average sunshine in May
Mountain Top, PA

Average daylight in May / Average sunshine in May - Mountain Top, 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).

Average sunshine days in May
Mountain Top, PA

Average sunshine days in May - Mountain Top, 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).

Average UV index in May
Mountain Top, PA

Average UV index in May - Mountain Top, 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).

Average cloud cover in May
Mountain Top, PA

Average cloud cover in May - Mountain Top, 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).

Average visibility in May
Mountain Top, PA

Average visibility in May - Mountain Top, 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).

Mountain Top, Pennsylvania, USA

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