May weather forecast
Walpole, MA

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Weather in May

May, the last month of the spring in Walpole, is a refreshing month, with temperature in the range of an average high of 66.9°F (19.4°C) and an average low of 49.6°F (9.8°C).

Temperature

An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a refreshing 55.9°F (13.3°C) to an enjoyable 66.9°F (19.4°C). Walpole, in the month of May, anticipates a consistent average low-temperature of 49.6°F (9.8°C).

Humidity

In Walpole, the average relative humidity in May is 74%.

Rainfall

In Walpole, in May, during 10.2 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Walpole, there are 97.1 rainfall days, and 7.13" (181mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Walpole aggregates 0.08" (2mm) of snow. Throughout the year, there are 19.5 snowfall days, and 3.74" (95mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 36min.
On the first day of May, sunrise is at 5:39 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:14 pm EDT.

Sunshine

The average sunshine in May is 8.5h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

What are May temperatures?

In Walpole, 66.9°F (19.4°C) is the average high-temperature and 49.6°F (9.8°C) is the average low-temperature during May.

What is the average humidity in May?

In May, the average relative humidity is 74%.

How many days does it rain in May?

In Walpole, in May, during 10.2 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

What is the last month it snows in Walpole?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Walpole aggregates 0.08" (2mm) of snow.

How many hours of daylight does Walpole have in May?

In May, the average day length is 14h and 36min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:39 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:14 pm EDT.

How many hours of sunshine does Walpole have in May?

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

How high is the UV index in May in Walpole?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Walpole, MA

Average temperature in May - Walpole, MA
  • Average high temperature in May: 66.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in May: 49.6°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in May
Walpole, MA

Average pressure in May - Walpole, MA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Walpole, MA

Average wind speed in May - Walpole, MA
  • Average wind speed in May: 7.2mph

The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in May
Walpole, MA

Average humidity in May - Walpole, MA
  • Average humidity in May: 74%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

Average rainfall in May
Walpole, MA

Average rainfall in May - Walpole, MA
  • Average rainfall in May: 0.59"

The wettest month (with the highest rainfall) is April (0.79").
The driest month (with the least rainfall) is September (0.31").

Average rainfall days in May
Walpole, MA

Average rainfall days in May - Walpole, MA
  • Average rainfall days in May: 10.2 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in May
Walpole, MA

Average snowfall in May - Walpole, MA
  • Average snowfall in May: 0.08"

The months with the highest snowfall are March and December (0.91").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Walpole, MA

Average snowfall days in May - Walpole, MA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Walpole, MA

Average daylight in May / Average sunshine in May - Walpole, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in May
Walpole, MA

Average sunshine days in May - Walpole, MA
  • Average sunshine days in May: 18.3 days

The month with the most sunshine days is November (22 days).
The month with the least sunshine days is July (16.8 days).

Average UV index in May
Walpole, MA

Average UV index in May - Walpole, MA
  • Average UV index in May: 5

The months with the highest UV index are 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
Walpole, MA

Average cloud cover in May - Walpole, MA
  • Average cloud cover in May: 46

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in May
Walpole, MA

Average visibility in May - Walpole, 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).

Walpole, Massachusetts, USA

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