May weather forecast
East McKeesport, PA

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Weather in May

The last month of the spring, May, is an agreeable month in East McKeesport, Pennsylvania, with an average temperature fluctuating between 71.8°F (22.1°C) and 51.1°F (10.6°C).

Temperature

The arrival of May brings an increase in high-temperatures, moving from a mild 60.1°F (15.6°C) in April to a pleasant 71.8°F (22.1°C). An average low-temperature of 51.1°F (10.6°C) marks the nights throughout May.

Humidity

In May, the average relative humidity is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.2 days and accumulates 2.56" (65mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, East McKeesport aggregates 0.04" (1mm) of snow. Throughout the year, there are 35.4 snowfall days, and 10.35" (263mm) of snow is accumulated.

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 8.8h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In May, the average high-temperature and low-temperature are 71.8°F (22.1°C) and 51.1°F (10.6°C) respectively.

What is the average humidity in May?

In May, the average relative humidity is 78%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 18.2 days and accumulates 2.56" (65mm) of precipitation.

How many days does it rain in May?

In East McKeesport, in May, during 18.2 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, East McKeesport aggregates 0.04" (1mm) of snow.

How many hours of daylight does East McKeesport have in May?

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

When are sunrise and sunset in May?

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 May, the average sunshine duration is 8.8h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
East McKeesport, PA

Average temperature in May - East McKeesport, PA
  • Average high temperature in May: 71.8°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in May: 51.1°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in May
East McKeesport, PA

Average pressure in May - East McKeesport, 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).

Average wind speed in May
East McKeesport, PA

Average wind speed in May - East McKeesport, PA
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in May
East McKeesport, PA

Average humidity in May - East McKeesport, PA
  • Average humidity in May: 78%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).

Average rainfall in May
East McKeesport, PA

Average rainfall in May - East McKeesport, PA
  • Average rainfall in May: 2.56"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is November (1.06").

Average rainfall days in May
East McKeesport, PA

Average rainfall days in May - East McKeesport, PA
  • Average rainfall days in May: 18.2 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in May
East McKeesport, PA

Average snowfall in May - East McKeesport, PA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
East McKeesport, PA

Average snowfall days in May - East McKeesport, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
East McKeesport, PA

Average daylight in May / Average sunshine in May - East McKeesport, 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 5min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in May
East McKeesport, PA

Average sunshine days in May - East McKeesport, PA
  • Average sunshine days in May: 10.1 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in May
East McKeesport, PA

Average UV index in May - East McKeesport, 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).

Average cloud cover in May
East McKeesport, PA

Average cloud cover in May - East McKeesport, 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).

Average visibility in May
East McKeesport, PA

Average visibility in May - East McKeesport, PA
  • Average visibility in May: 5mi

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

East McKeesport, Pennsylvania, USA

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