May weather forecast
South Waverly, PA

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Weather in May

The last month of the spring, May, is an enjoyable month in South Waverly, Pennsylvania, with an average temperature varying between 67.8°F (19.9°C) and 46.8°F (8.2°C).

Temperature

May's arrival signals an increase in average high-temperatures, moving from April's cool 54.5°F (12.5°C) to a refreshing 67.8°F (19.9°C). During the month of May, South Waverly's nighttime temperature lowers to an average of 46.8°F (8.2°C).

Humidity

April through July, with an average relative humidity of 78%, are the least humid months.

Rainfall

May is the month with the most rainfall. Rain falls for 17.4 days and accumulates 2.44" (62mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.5 snowfall days, in May, South Waverly aggregates 0.2" (5mm) of snow. In South Waverly, during the entire year, snow falls for 69.1 days and aggregates up to 21.69" (551mm) of snow.

Daylight

The average length of the day in May is 14h and 35min.
On the first day of May, sunrise is at 6:00 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:34 pm EDT.

Sunshine

In May, the average sunshine is 8.1h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

What is the average May temperature?

The high-temperature during May is 67.8°F (19.9°C) and the low-temperature is 46.8°F (8.2°C).

What are the least humid months in South Waverly?

April through July, with an average relative humidity of 78%, are the least humid months.

What is the average humidity in May in South Waverly?

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

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 2.44" (62mm) of precipitation.

How much does it rain in May?

In South Waverly, in May, it is raining for 17.4 days, with typically 2.44" (62mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.5 snowfall days, in May, South Waverly aggregates 0.2" (5mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 35min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:00 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:34 pm EDT.

How long on average sun shines in May in South Waverly?

In May, the average sunshine duration is 8.1h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

How high is the UV index in May?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
South Waverly, PA

Average temperature in May - South Waverly, 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 (29.1°F).

  • Average low temperature in May: 46.8°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 (17.8°F).

Average pressure in May
South Waverly, PA

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

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
South Waverly, PA

Average wind speed in May - South Waverly, PA
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
South Waverly, PA

Average humidity in May - South Waverly, PA
  • Average humidity in May: 78%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April, May, June and July (78%).

Average rainfall in May
South Waverly, PA

Average rainfall in May - South Waverly, PA
  • Average rainfall in May: 2.44"

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (1.34").

Average rainfall days in May
South Waverly, PA

Average rainfall days in May - South Waverly, PA
  • Average rainfall days in May: 17.4 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in May
South Waverly, PA

Average snowfall in May - South Waverly, PA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
South Waverly, PA

Average snowfall days in May - South Waverly, PA
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - South Waverly, PA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in May
South Waverly, PA

Average sunshine days in May - South Waverly, PA
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is September (16 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in May
South Waverly, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
South Waverly, PA

Average cloud cover in May - South Waverly, PA
  • Average cloud cover in May: 50

The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 39).

Average visibility in May
South Waverly, PA

Average visibility in May - South Waverly, PA
  • Average visibility in May: 5mi

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

South Waverly, Pennsylvania, USA

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