May weather forecast
Mendon, MA

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Weather in May

May, the last month of the spring in Mendon, is a refreshing month, with temperature in the range of an average low of 48.6°F (9.2°C) and an average high of 67.3°F (19.6°C).

Temperature

With the onset of May, Mendon's weather sees a temperature rise, transitioning from a mild 55.9°F (13.3°C) in April to an enjoyable 67.3°F (19.6°C). In Mendon, the average nighttime temperature during May is a chilly 48.6°F (9.2°C).

Humidity

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

Rainfall

In Mendon, in May, during 16.1 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Mendon, during the entire year, the rain falls for 152.2 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Mendon aggregates 0.2" (5mm) of snow. Throughout the year, there are 32.5 snowfall days, and 18.78" (477mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 35min.
On the first day of May in Mendon, sunrise is at 5:40 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:15 pm EDT.

Sunshine

In Mendon, Massachusetts, the average sunshine in May is 8.2h.

UV index

In Mendon, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 5 in May leads to these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.

Frequently asked questions

What is the average May temperature?

The high-temperature, in May, in Mendon, is 67.3°F (19.6°C), while the low-temperature averages to 48.6°F (9.2°C).

What is the average humidity in May?

In May, the average relative humidity is 75%.

How many days does it rain in May?

In Mendon, in May, it is raining for 16.1 days, with typically 2.48" (63mm) of accumulated precipitation.

What is the last month it snows in Mendon?

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

What is the average length of the day in May?

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

When is the sunrise / sunset in May in Mendon?

In May, on the first day of the month, sunrise is at 5:40 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:15 pm EDT.

How many hours of sunshine does Mendon have in May?

The average sunshine duration in May is 8.2h.

What is the UV index reading in May?

The average daily maximum UV index in May is 5. A UV Index reading 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
Mendon, MA

Average temperature in May - Mendon, MA
  • Average high temperature in May: 67.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in May: 48.6°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in May
Mendon, MA

Average pressure in May - Mendon, 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
Mendon, MA

Average wind speed in May - Mendon, MA
  • Average wind speed in May: 7.1mph

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 (5.7mph).

Average humidity in May
Mendon, MA

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

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

Average rainfall in May
Mendon, MA

Average rainfall in May - Mendon, MA
  • Average rainfall in May: 2.48"

The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in May
Mendon, MA

Average rainfall days in May - Mendon, MA
  • Average rainfall days in May: 16.1 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in May
Mendon, MA

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

The month with the highest snowfall is March (4.92").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Mendon, MA

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

The month with the highest number of snowfall days is January (8.4 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
Mendon, MA

Average daylight in May / Average sunshine in May - Mendon, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in May
Mendon, MA

Average sunshine days in May - Mendon, MA
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in May
Mendon, MA

Average UV index in May - Mendon, 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
Mendon, MA

Average cloud cover in May - Mendon, MA
  • Average cloud cover in May: 48

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in May
Mendon, MA

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

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

Mendon, Massachusetts, USA

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