May weather forecast
Dennis Port, MA

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Weather in May

The last month of the spring, May, is a fresh month in Dennis Port, Massachusetts, with an average temperature fluctuating between 51.3°F (10.7°C) and 55°F (12.8°C).

Temperature

May's arrival brings a modest temperature shift, moving from a frosty 47.1°F (8.4°C) in April to a cool 55°F (12.8°C). Dennis Port maintains a minor drop in temperature during May nights, with averages of 51.3°F (10.7°C).

Humidity

In Dennis Port, the average relative humidity in May is 83%.

Rainfall

In May, the rain falls for 12.5 days. Throughout May, 1.14" (29mm) of precipitation is accumulated. Throughout the year, there are 129 rainfall days, and 14.21" (361mm) of precipitation is accumulated.

Snowfall

In Dennis Port, Massachusetts, snow does not fall in May through November.

Daylight

The average length of the day in May in Dennis Port, Massachusetts, is 14h and 33min.
On the first day of the month, sunrise is at 5:36 am and sunset at 7:39 pm. On the last day of May, sunrise is at 5:08 am and sunset at 8:08 pm EDT.

Sunshine

In Dennis Port, the average sunshine in May is 8.6h.

UV index

In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 4 during May leads to these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What is the temperature in May in Dennis Port?

In Dennis Port, 55°F (12.8°C) is the average high-temperature and 51.3°F (10.7°C) is the average low-temperature during May.

What is the average humidity in May in Dennis Port?

The average relative humidity in May in Dennis Port is 83%.

How much does it rain in Dennis Port in May?

In May, in Dennis Port, the rain falls for 12.5 days. Throughout May, 1.14" (29mm) of precipitation is accumulated.

When it does not snow in Dennis Port?

In Dennis Port, Massachusetts, snow does not fall in May through November.

Does it snow in Dennis Port in May?

In May, in Dennis Port, Massachusetts, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Dennis Port have in May?

In Dennis Port, the average day length in May is 14h and 33min.

When is the sunrise / sunset in May in Dennis Port?

In May, on the first day of the month, sunrise is at 5:36 am and sunset at 7:39 pm. On the last day of the month, in Dennis Port, sunrise is at 5:08 am and sunset at 8:08 pm EDT.

How many hours of sunshine does Dennis Port have in May?

In May, the average sunshine duration is 8.6h.

How high is the UV index in May in Dennis Port?

The average daily maximum UV index in May in Dennis Port, Massachusetts, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Dennis Port, MA

Average temperature in May - Dennis Port, MA
  • Average high temperature in May: 55°F

The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in May: 51.3°F

The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in May
Dennis Port, MA

Average pressure in May - Dennis Port, MA
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Dennis Port, MA

Average wind speed in May - Dennis Port, MA
  • Average wind speed in May: 12.5mph

The windiest month (with the highest average wind speed) is January (16.8mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).

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Average humidity in May
Dennis Port, MA

Average humidity in May - Dennis Port, MA
  • Average humidity in May: 83%

The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in May
Dennis Port, MA

Average rainfall in May - Dennis Port, MA
  • Average rainfall in May: 1.14"

The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is August (0.94").

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Average rainfall days in May
Dennis Port, MA

Average rainfall days in May - Dennis Port, MA
  • Average rainfall days in May: 12.5 days

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (8.3 days).

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Average snowfall in May
Dennis Port, MA

Average snowfall in May - Dennis Port, MA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.87").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in May
Dennis Port, MA

Average snowfall days in May - Dennis Port, MA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Dennis Port, MA

Average daylight in May / Average sunshine in May - Dennis Port, MA
  • 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

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Average sunshine days in May
Dennis Port, MA

Average sunshine days in May - Dennis Port, MA
  • Average sunshine days in May: 16.4 days

The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (14.3 days).

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Average UV index in May
Dennis Port, MA

Average UV index in May - Dennis Port, MA
  • Average UV index in May: 4

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

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Average cloud cover in May
Dennis Port, MA

Average cloud cover in May - Dennis Port, MA
  • Average cloud cover in May: 43

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in May
Dennis Port, MA

Average visibility in May - Dennis Port, MA
  • Average visibility in May: 6mi

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

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Dennis Port, Massachusetts, USA

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