May weather forecast
Southampton, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Southampton, Pennsylvania, with an average temperature fluctuating between 53.6°F (12°C) and 71.2°F (21.8°C).

Temperature

Southampton's May weather shows an increase in high-temperatures, moving from April's moderate 60.6°F (15.9°C) to a pleasant 71.2°F (21.8°C). In Southampton, May nights cool down to an average of 53.6°F (12°C).

Humidity

In Southampton, the average relative humidity in May is 75%.

Rainfall

In Southampton, in May, during 16.8 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Southampton, during the entire year, the rain falls for 156 days and collects up to 31.77" (807mm) 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, Southampton aggregates 0.28" (7mm) of snow. Throughout the year, there are 24 snowfall days, and 12.13" (308mm) of snow is accumulated.

Daylight

In Southampton, the average length of the day in May is 14h and 25min.
On the first day of May, sunrise is at 5:58 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:23 pm EDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 6 in May leads to these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Enhance your sun protection with tightly woven, yet airy clothing. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

What are May temperatures?

May temperatures vary between a high-temperature of 71.2°F (21.8°C) and a low-temperature of 53.6°F (12°C).

What is the average humidity in May?

In Southampton, Pennsylvania, the average relative humidity in May is 75%.

How many days does it rain in May in Southampton?

In Southampton, during May, the rain falls for 16.8 days and regularly aggregates up to 2.83" (72mm) of precipitation.

What is the last month it snows in Southampton?

May is the last month it regularly snows in Southampton, Pennsylvania. During 0.1 snowfall days, in May, Southampton aggregates 0.28" (7mm) of snow.

How many hours of daylight does Southampton have in May?

The average day length in May is 14h and 25min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:23 pm EDT.

How many hours of sunshine does Southampton have in May?

In Southampton, the average sunshine duration in May is 8.5h.

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 6.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Southampton, PA

Average temperature in May - Southampton, PA
  • Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in May: 53.6°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in May
Southampton, PA

Average pressure in May - Southampton, 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 (29.93"Hg).

Average wind speed in May
Southampton, PA

Average wind speed in May - Southampton, PA
  • Average wind speed in May: 6.7mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in May
Southampton, PA

Average humidity in May - Southampton, PA
  • Average humidity in May: 75%

The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall in May
Southampton, PA

Average rainfall in May - Southampton, PA
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in May
Southampton, PA

Average rainfall days in May - Southampton, PA
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in May
Southampton, PA

Average snowfall in May - Southampton, PA
  • Average snowfall in May: 0.28"

The month with the highest snowfall is March (3.78").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Southampton, PA

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

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Southampton, PA
  • Average daylight in May: 14h and 2min

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 24min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in May
Southampton, PA

Average sunshine days in May - Southampton, PA
  • Average sunshine days in May: 12.1 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in May
Southampton, PA

Average UV index in May - Southampton, PA
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (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
Southampton, PA

Average cloud cover in May - Southampton, PA
  • Average cloud cover in May: 47

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in May
Southampton, PA

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

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

Southampton, Pennsylvania, USA

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