May weather forecast
Granville, MA

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Weather in May

The last month of the spring, May, is a refreshing month in Granville, Massachusetts, with an average temperature varying between 67.6°F (19.8°C) and 47.5°F (8.6°C).

Temperature

Granville experiences a temperature shift with the start of May, with average high-temperatures moving from a mild 55.9°F (13.3°C) in April to a comfortable 67.6°F (19.8°C). An average low-temperature of 47.5°F (8.6°C) is observed in Granville, Massachusetts, during the May nights.

Humidity

The average relative humidity in May is 75%.

Rainfall

In Granville, in May, it is raining for 17.7 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, in Granville, there are 165.4 rainfall days, and 34.45" (875mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Granville. During 0.1 snowfall days, in May, Granville aggregates 0.2" (5mm) of snow. In Granville, during the entire year, snow falls for 37.5 days and aggregates up to 21.26" (540mm) of snow.

Daylight

The average length of the day in May is 14h and 35min.
On the first day of May, sunrise is at 5:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:20 pm EDT.

Sunshine

In Granville, the average sunshine in May is 8h.

UV index

In Granville, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 5 in May suggests the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Opt for tightly woven and loose clothing to enhance protection from the Sun. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the average May temperature in Granville?

May temperatures vary between a high-temperature of 67.6°F (19.8°C) and a low-temperature of 47.5°F (8.6°C).

What is the average humidity in May in Granville?

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

How much does it rain in Granville in May?

In Granville, in May, it is raining for 17.7 days, with typically 3.07" (78mm) of accumulated precipitation.

What is the last month it snows in Granville?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Granville aggregates 0.2" (5mm) of snow.

What is the average length of the day in May in Granville?

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

When are sunrise and sunset in May in Granville?

On the first day of May in Granville, sunrise is at 5:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Granville have in May?

In Granville, the average sunshine duration in May is 8h.

What is the UV index reading in May in Granville?

In Granville, Massachusetts, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Granville, MA

Average temperature in May - Granville, MA
  • Average high temperature in May: 67.6°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 (30.9°F).

  • Average low temperature in May: 47.5°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

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Average pressure in May
Granville, MA

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

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Granville, MA

Average wind speed in May - Granville, MA
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in May
Granville, MA

Average humidity in May - Granville, MA
  • Average humidity in May: 75%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in May
Granville, MA

Average rainfall in May - Granville, MA
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days in May
Granville, MA

Average rainfall days in May - Granville, MA
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in May
Granville, MA

Average snowfall in May - Granville, MA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Granville, MA

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

The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Granville, 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 0min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in May
Granville, MA

Average sunshine days in May - Granville, MA
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is January (16.6 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in May
Granville, MA

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

The month with the highest UV index is June (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
Granville, MA

Average cloud cover in May - Granville, MA
  • Average cloud cover in May: 49

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in May
Granville, MA

Average visibility in May - Granville, MA
  • Average visibility in May: 5mi

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

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Granville, Massachusetts, USA

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