May weather forecast
Orviston, PA

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Weather in May

The last month of the spring, May, is an enjoyable month in Orviston, Pennsylvania, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 67.8°F (19.9°C).

Temperature

Orviston experiences a temperature shift with the start of May, with average high-temperatures moving from a cool 55.2°F (12.9°C) in April to an enjoyable 67.8°F (19.9°C). Throughout the May nights, Orviston encounters a low-temperature of 46.2°F (7.9°C).

Humidity

In Orviston, the average relative humidity in May is 79%.

Rainfall

In May, the rain falls for 18.5 days. Throughout May, 3.15" (80mm) of precipitation is accumulated. In Orviston, during the entire year, the rain falls for 179.8 days and collects up to 32.36" (822mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Orviston aggregates 0.2" (5mm) of snow. In Orviston, Pennsylvania, during the entire year, snow falls for 65.4 days and aggregates up to 28.15" (715mm) of snow.

Daylight

In May, the average length of the day is 14h and 30min.
On the first day of May, sunrise is at 6:07 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:36 pm EDT.

Sunshine

The average sunshine in May is 8.2h.

UV index

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during May leads to these instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Orviston?

The high-temperature, in May, in Orviston, records 67.8°F (19.9°C), while the low-temperature is 46.2°F (7.9°C).

What is the average humidity in May?

In Orviston, the average relative humidity in May is 79%.

How much does it rain in Orviston in May?

In Orviston, during May, the rain falls for 18.5 days and regularly aggregates up to 3.15" (80mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Orviston aggregates 0.2" (5mm) of snow.

What is the average length of the day in May?

In Orviston, the average day length in May is 14h and 30min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 8:08 pm. On the last day of the month, in Orviston, sunrise is at 5:40 am and sunset at 8:36 pm EDT.

How many hours of sunshine does Orviston have in May?

The average sunshine duration in May is 8.2h.

What is the UV index reading in May?

In May, the average daily maximum UV index in Orviston, Pennsylvania, is 5. A UV Index of 3 to 5 symbolizes a moderate 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
Orviston, PA

Average temperature in May - Orviston, PA
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in May: 46.2°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

Average pressure in May
Orviston, PA

Average pressure in May - Orviston, 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
Orviston, PA

Average wind speed in May - Orviston, PA
  • Average wind speed in May: 6.4mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in May
Orviston, PA

Average humidity in May - Orviston, PA
  • Average humidity in May: 79%

The months with the highest relative humidity are February and December (86%).
The month with the lowest relative humidity is July (77%).

Average rainfall in May
Orviston, PA

Average rainfall in May - Orviston, PA
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is November (2.2").

Average rainfall days in May
Orviston, PA

Average rainfall days in May - Orviston, PA
  • Average rainfall days in May: 18.5 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (11.1 days).

Average snowfall in May
Orviston, PA

Average snowfall in May - Orviston, PA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is January (7.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Orviston, PA

Average snowfall days in May - Orviston, PA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Orviston, 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: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).

Average sunshine days in May
Orviston, PA

Average sunshine days in May - Orviston, PA
  • Average sunshine days in May: 10.1 days

The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7.7 days).

Average UV index in May
Orviston, PA

Average UV index in May - Orviston, PA
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Orviston, PA

Average cloud cover in May - Orviston, PA
  • Average cloud cover in May: 50

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 39).

Average visibility in May
Orviston, PA

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

The months with the highest visibility are March, April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, September and December (4mi).

Orviston, Pennsylvania, USA

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