May weather forecast
Glassport, PA

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Weather in May

May, the last month of the spring in Glassport, is a pleasant month, with temperature in the range of an average low of 51.4°F (10.8°C) and an average high of 72.1°F (22.3°C).

Temperature

As Glassport transitions into May, the average high-temperature shows a change, moving from a refreshing 60.4°F (15.8°C) in April to an agreeable 72.1°F (22.3°C). Glassport records an average low-temperature of 51.4°F (10.8°C) throughout the month of May.

Humidity

In May, the average relative humidity in Glassport is 77%.

Rainfall

May is the month with the most rainfall. Rain falls for 15 days and accumulates 1.26" (32mm) of precipitation.

Snowfall

Months with snowfall in Glassport, Pennsylvania, are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Glassport aggregates 0.04" (1mm) of snow. In Glassport, Pennsylvania, during the entire year, snow falls for 50 days and aggregates up to 6.69" (170mm) of snow.

Daylight

In May, the average length of the day is 14h and 26min.
On the first day of the month, sunrise is at 6:17 am and sunset at 8:15 pm. On the last day of May, sunrise is at 5:51 am and sunset at 8:42 pm EDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

The months with the highest UV index in Glassport are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Guard oneself from overexposure. Defence against sun injury is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are the temperatures in Glassport in May?

In Glassport, 72.1°F (22.3°C) is the average high-temperature and 51.4°F (10.8°C) is the average low-temperature during May.

What is the average humidity in May in Glassport?

The average relative humidity in May in Glassport is 77%.

What is the rainiest month in Glassport?

May is the month with the most rainfall in Glassport. Rain falls for 15 days and accumulates 1.26" (32mm) of precipitation.

How many days does it rain in May in Glassport?

In Glassport, Pennsylvania, in May, during 15 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

What is the last month it snows in Glassport?

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

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

In May, the average day length is 14h and 26min.

When are sunrise and sunset in May in Glassport?

In May, on the first day of the month, sunrise is at 6:17 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:42 pm EDT.

How long on average sun shines in May in Glassport?

The average sunshine duration in May in Glassport is 8.9h.

When is the highest UV index in Glassport?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Glassport, Pennsylvania.

What is the UV index reading in May in Glassport?

In Glassport, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Glassport, PA

Average temperature in May - Glassport, 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 (33.4°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in May
Glassport, PA

Average pressure in May - Glassport, PA
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in May
Glassport, PA

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

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in May
Glassport, PA

Average humidity in May - Glassport, PA
  • Average humidity in May: 77%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (74%).

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Average rainfall in May
Glassport, PA

Average rainfall in May - Glassport, PA
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are September and November (0.55").

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Average rainfall days in May
Glassport, PA

Average rainfall days in May - Glassport, PA
  • Average rainfall days in May: 15 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (7.1 days).

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Average snowfall in May
Glassport, PA

Average snowfall in May - Glassport, PA
  • Average snowfall in May: 0.04"

The months with the highest snowfall are January and February (1.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Glassport, PA

Average snowfall days in May - Glassport, PA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (14.4 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
Glassport, PA

Average daylight in May / Average sunshine in May - Glassport, 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
Glassport, PA

Average sunshine days in May - Glassport, PA
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.3 days).

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Average UV index in May
Glassport, PA

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

The months with the highest UV index are May, 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
Glassport, PA

Average cloud cover in May - Glassport, PA
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in May
Glassport, PA

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

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

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Glassport, Pennsylvania, USA

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