May weather forecast
Monongahela, PA

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Weather in May

May, the last month of the spring in Monongahela, is an agreeable month, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 72.3°F (22.4°C).

Temperature

Monongahela, Pennsylvania, in May shows a temperature shift, moving from an average high of a comfortable 61°F (16.1°C) in April to a pleasant 72.3°F (22.4°C). Monongahela's temperature lowers to a mean of 51.6°F (10.9°C) during the nights in May.

Humidity

In May, the average relative humidity is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.6 days and accumulates 2.32" (59mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Monongahela, Pennsylvania, the average length of the day in May is 14h and 25min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:15 pm. On the last day of May, sunrise is at 5:52 am and sunset at 8:42 pm EDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in May translates into this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

During May, Monongahela experiences an average high-temperature of 72.3°F (22.4°C) and a low-temperature of 51.6°F (10.9°C).

What is the average humidity in May?

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

What is the wettest month?

May is the month with the most rainfall. Rain falls for 18.6 days and accumulates 2.32" (59mm) of precipitation.

How much does it rain in May?

In May, the rain falls for 18.6 days. Throughout May, 2.32" (59mm) of precipitation is accumulated.

When it does not snow in Monongahela?

May through September are months without snowfall.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Monongahela have in May?

In Monongahela, the average day length in May is 14h and 25min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:18 am and sunset at 8:15 pm. On the last day of the month, in Monongahela, sunrise is at 5:52 am and sunset at 8:42 pm EDT.

How long on average sun shines in May?

In Monongahela, the average sunshine duration in May is 8.9h.

What is the month with the highest UV index?

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

What is the UV index reading in May?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from 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
Monongahela, PA

Average temperature in May - Monongahela, PA
  • Average high temperature in May: 72.3°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in May: 51.6°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in May
Monongahela, PA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in May
Monongahela, PA

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

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in May
Monongahela, PA

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

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July and August (76%).

Average rainfall in May
Monongahela, PA

Average rainfall in May - Monongahela, PA
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in May
Monongahela, PA

Average rainfall days in May - Monongahela, PA
  • Average rainfall days in May: 18.6 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9 days).

Average snowfall in May
Monongahela, PA

Average snowfall in May - Monongahela, PA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Monongahela, PA

Average snowfall days in May - Monongahela, PA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Monongahela, PA

Average daylight in May / Average sunshine in May - Monongahela, 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 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in May
Monongahela, PA

Average sunshine days in May - Monongahela, PA
  • Average sunshine days in May: 9.8 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is February (9 days).

Average UV index in May
Monongahela, PA

Average UV index in May - Monongahela, 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).

Average cloud cover in May
Monongahela, PA

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

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in May
Monongahela, PA

Average visibility in May - Monongahela, 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).

Monongahela, Pennsylvania, USA

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