May weather forecast
Dorneyville, PA

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Weather in May

May, the last month of the spring in Dorneyville, is a pleasant month, with an average temperature fluctuating between 50.5°F (10.3°C) and 69.4°F (20.8°C).

Temperature

With the onset of May, Dorneyville's average high-temperature sees a rise, moving from April's mild 58.3°F (14.6°C) to an agreeable 69.4°F (20.8°C). In May, the average low-temperature in Dorneyville records at a cool 50.5°F (10.3°C) during the nights.

Humidity

In May, the average relative humidity is 79%.

Rainfall

In Dorneyville, in May, it is raining for 16.9 days, with typically 2.76" (70mm) of accumulated precipitation. In Dorneyville, Pennsylvania, during the entire year, the rain falls for 145.1 days and collects up to 27.24" (692mm) 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, Dorneyville aggregates 0.16" (4mm) of snow. In Dorneyville, during the entire year, snow falls for 20.4 days and aggregates up to 13.82" (351mm) of snow.

Daylight

The average length of the day in May is 14h and 28min.
On the first day of May in Dorneyville, Pennsylvania, sunrise is at 5:59 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:26 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 estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The average high-temperature and low-temperature during May are 69.4°F (20.8°C) and 50.5°F (10.3°C) respectively.

What is the average humidity in May?

In May, the average relative humidity is 79%.

How many days does it rain in May?

In Dorneyville, in May, during 16.9 rainfall days, 2.76" (70mm) 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, Dorneyville aggregates 0.16" (4mm) of snow.

How many hours of daylight does Dorneyville have in May?

In Dorneyville, the average day length in May is 14h and 28min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:59 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:26 pm EDT.

How many hours of sunshine does Dorneyville have in May?

In Dorneyville, Pennsylvania, the average sunshine duration in May is 8.2h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Dorneyville, PA

Average temperature in May - Dorneyville, PA
  • Average high temperature in May: 69.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in May
Dorneyville, PA

Average pressure in May - Dorneyville, 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
Dorneyville, PA

Average wind speed in May - Dorneyville, PA
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in May
Dorneyville, PA

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

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall in May
Dorneyville, PA

Average rainfall in May - Dorneyville, PA
  • Average rainfall in May: 2.76"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in May
Dorneyville, PA

Average rainfall days in May - Dorneyville, PA
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in May
Dorneyville, PA

Average snowfall in May - Dorneyville, PA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Dorneyville, PA

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

The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Dorneyville, PA
  • Average daylight in May: 14h and 3min

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 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in May
Dorneyville, PA

Average sunshine days in May - Dorneyville, PA
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in May
Dorneyville, PA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May
Dorneyville, PA

Average cloud cover in May - Dorneyville, PA
  • Average cloud cover in May: 49

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in May
Dorneyville, PA

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

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

Dorneyville, Pennsylvania, USA

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