May weather forecast
South Heights, PA

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Weather in May

The last month of the spring, May, is an agreeable month in South Heights, Pennsylvania, with an average temperature ranging between max 72°F (22.2°C) and min 50.7°F (10.4°C).

Temperature

Entering May, South Heights sees a temperature rise, with the average high-temperature advancing from April's refreshing 59.9°F (15.5°C) to a pleasant 72°F (22.2°C). The average temperature during May nights dips to a fresh 50.7°F (10.4°C).

Humidity

In South Heights, the average relative humidity in May is 77%.

Rainfall

In South Heights, during May, the rain falls for 18.9 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 171.3 rainfall days, and 25.79" (655mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, South Heights aggregates 0.04" (1mm) of snow. In South Heights, during the entire year, snow falls for 56.4 days and aggregates up to 12.36" (314mm) of snow.

Daylight

The average length of the day in May is 14h and 28min.
On the first day of May, sunrise is at 6:18 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:45 pm EDT.

Sunshine

The average sunshine in May in South Heights is 8.7h.

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 UV index of 5 in May translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Boost your sun resistance with garments that are densely woven yet spacious. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In May, in South Heights, the average high-temperature is 72°F (22.2°C), and the average low-temperature is 50.7°F (10.4°C).

What is the average humidity in May?

In May, the average relative humidity is 77%.

How many days does it rain in May?

In May, the rain falls for 18.9 days. Throughout May, 2.68" (68mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, South Heights aggregates 0.04" (1mm) of snow.

What is the average length of the day in May?

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

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 8:17 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:45 pm EDT.

How many hours of sunshine does South Heights have in May?

The average sunshine duration in May is 8.7h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index value 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
South Heights, PA

Average temperature in May - South Heights, PA
  • Average high temperature in May: 72°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 (32.7°F).

  • Average low temperature in May: 50.7°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 (20.1°F).

Average pressure in May
South Heights, PA

Average pressure in May - South Heights, PA
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
South Heights, PA

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

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in May
South Heights, PA

Average humidity in May - South Heights, PA
  • Average humidity in May: 77%

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

Average rainfall in May
South Heights, PA

Average rainfall in May - South Heights, PA
  • Average rainfall in May: 2.68"

The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is January (1.61").

Average rainfall days in May
South Heights, PA

Average rainfall days in May - South Heights, PA
  • Average rainfall days in May: 18.9 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in May
South Heights, PA

Average snowfall in May - South Heights, PA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
South Heights, PA

Average snowfall days in May - South Heights, PA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
South Heights, PA

Average daylight in May / Average sunshine in May - South Heights, 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 4min

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
South Heights, PA

Average sunshine days in May - South Heights, PA
  • Average sunshine days in May: 9.7 days

The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.2 days).

Average UV index in May
South Heights, PA

Average UV index in May - South Heights, PA
  • Average UV index in May: 5

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

Average cloud cover in May
South Heights, PA

Average cloud cover in May - South Heights, PA
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in May
South Heights, PA

Average visibility in May - South Heights, 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).

South Heights, Pennsylvania, USA

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