May weather forecast
Monessen, PA

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Weather in May

May, the last month of the spring in Monessen, is a pleasant month, with temperature in the range of an average high of 72.1°F (22.3°C) and an average low of 51.6°F (10.9°C).

Temperature

May's arrival sees a rise in the average high-temperature, jumping from April's mild 60.6°F (15.9°C) to an agreeable 72.1°F (22.3°C). The average temperature drops to a cool 51.6°F (10.9°C) during the night in the month of May.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 21.8 days and typically aggregates up to 3.78" (96mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Monessen. May is the last month it regularly snows. During 0.1 snowfall days, in May, Monessen aggregates 0.12" (3mm) of snow. Throughout the year, there are 60.2 snowfall days, and 25.08" (637mm) of snow is accumulated.

Daylight

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 8:14 pm. On the last day of May, in Monessen, sunrise is at 5:52 am and sunset at 8:42 pm EDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: During May, 6 as the daily maximum UV index converts into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What is the average May temperature in Monessen?

In Monessen, 72.1°F (22.3°C) is the average high-temperature and 51.6°F (10.9°C) is the average low-temperature during May.

What is the average humidity in May in Monessen?

The average relative humidity in May in Monessen, Pennsylvania, is 78%.

What is the rainiest month in Monessen?

May is the month with the most rainfall in Monessen, Pennsylvania. Rain falls for 21.8 days and accumulates 3.78" (96mm) of precipitation.

How many days does it rain in May in Monessen?

In Monessen, Pennsylvania, during May, the rain falls for 21.8 days and regularly aggregates up to 3.78" (96mm) of precipitation.

What is the last month it snows in Monessen?

May is the last month it regularly snows in Monessen. During 0.1 snowfall days, in May, Monessen aggregates 0.12" (3mm) of snow.

How many hours of daylight does Monessen have in May?

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

When are sunrise and sunset in May in Monessen?

On the first day of May in Monessen, sunrise is at 6:18 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:42 pm EDT.

How many hours of sunshine does Monessen have in May?

The average sunshine duration in May is 8.9h.

What are the months with the highest UV index in Monessen?

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

What is the UV index intensity in May in Monessen?

The average daily maximum UV index in May in Monessen, Pennsylvania, is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Monessen, PA

Average temperature in May - Monessen, PA
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (82.9°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 (61.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in May
Monessen, PA

Average pressure in May - Monessen, 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).

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Average wind speed in May
Monessen, PA

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

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in May
Monessen, PA

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

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).

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Average rainfall in May
Monessen, PA

Average rainfall in May - Monessen, PA
  • Average rainfall in May: 3.78"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.13").

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Average rainfall days in May
Monessen, PA

Average rainfall days in May - Monessen, PA
  • Average rainfall days in May: 21.8 days

The month with the highest number of rainy days is May (21.8 days).
The months with the least rainy days are January and February (11.7 days).

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Average snowfall in May
Monessen, PA

Average snowfall in May - Monessen, PA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is January (6.26").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Monessen, PA

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

The month with the highest number of snowfall days is January (17.8 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
Monessen, PA

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

Average sunshine days in May - Monessen, PA
  • Average sunshine days in May: 8.2 days

The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is January (6.8 days).

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Average UV index in May
Monessen, PA

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

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Monessen, PA

Average cloud cover in May - Monessen, 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).

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Average visibility in May
Monessen, PA

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

The months with the highest visibility are April, August and November (6mi).
The months with the lowest visibility are January and February (4mi).

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Monessen, Pennsylvania, USA

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