May weather forecast
West Sunbury, PA

Share

Weather in May

The last month of the spring, May, is an agreeable month in West Sunbury, Pennsylvania, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 70.3°F (21.3°C).

Temperature

With the arrival of May, the average high-temperature transitions from a refreshing 58.1°F (14.5°C) in April to a pleasant 70.3°F (21.3°C). In the month of May, an average of 49.5°F (9.7°C) marks the low-temperature.

Humidity

In May, the average relative humidity is 79%.

Rainfall

In West Sunbury, Pennsylvania, during May, the rain falls for 20.1 days and regularly aggregates up to 3.78" (96mm) of precipitation. Throughout the year, there are 177.9 rainfall days, and 37.56" (954mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, West Sunbury aggregates 0.28" (7mm) of snow. In West Sunbury, during the entire year, snow falls for 72.7 days and aggregates up to 31.93" (811mm) of snow.

Daylight

The average length of the day in May is 14h and 29min.
On the first day of May, sunrise is at 6:16 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:45 pm EDT.

Sunshine

In May, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in May in West Sunbury is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Frequently asked questions

What are the temperatures in May?

The average high-temperature, in May, in West Sunbury, is 70.3°F (21.3°C), while the average low-temperature is 49.5°F (9.7°C).

What is the average humidity in May?

The average relative humidity in May is 79%.

How many days does it rain in May?

In May, the rain falls for 20.1 days. Throughout May, 3.78" (96mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.4 snowfall days, in May, West Sunbury aggregates 0.28" (7mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 29min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:16 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:45 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.3h.

How high is the UV index in May in West Sunbury?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
West Sunbury, PA

Average temperature in May - West Sunbury, PA
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in May: 49.5°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in May
West Sunbury, PA

Average pressure in May - West Sunbury, 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
West Sunbury, PA

Average wind speed in May - West Sunbury, PA
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

Average humidity in May
West Sunbury, PA

Average humidity in May - West Sunbury, PA
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April, July and August (78%).

Average rainfall in May
West Sunbury, PA

Average rainfall in May - West Sunbury, PA
  • Average rainfall in May: 3.78"

The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is November (2.36").

Average rainfall days in May
West Sunbury, PA

Average rainfall days in May - West Sunbury, PA
  • Average rainfall days in May: 20.1 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in May
West Sunbury, PA

Average snowfall in May - West Sunbury, PA
  • Average snowfall in May: 0.28"

The month with the highest snowfall is January (8.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
West Sunbury, PA

Average snowfall days in May - West Sunbury, PA
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
West Sunbury, PA

Average daylight in May / Average sunshine in May - West Sunbury, 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 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in May
West Sunbury, PA

Average sunshine days in May - West Sunbury, PA
  • Average sunshine days in May: 9.1 days

The month with the most sunshine days is November (13.8 days).
The month with the least sunshine days is February (7.1 days).

Average UV index in May
West Sunbury, PA

Average UV index in May - West Sunbury, PA
  • Average UV index in May: 5

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

Average cloud cover in May
West Sunbury, PA

Average cloud cover in May - West Sunbury, PA
  • Average cloud cover in May: 48

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in May
West Sunbury, PA

Average visibility in May - West Sunbury, PA
  • Average visibility in May: 5mi

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

West Sunbury, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location