May weather forecast
Brighton, MA

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Weather in May

The last month of the spring, May, is an enjoyable month in Brighton, Massachusetts, with an average temperature ranging between max 66.7°F (19.3°C) and min 49.6°F (9.8°C).

Temperature

The beginning of May marks a shift in the average high-temperature, moving from April's mild 55.9°F (13.3°C) to an enjoyable 66.7°F (19.3°C). Brighton in May experiences a low-temperature average of 49.6°F (9.8°C).

Humidity

In May, the average relative humidity is 73%.

Rainfall

In Brighton, in May, during 8.9 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

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, Brighton aggregates 0.08" (2mm) of snow. Throughout the year, there are 18.8 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

In Brighton, the average length of the day in May is 14h and 37min.
On the first day of the month, sunrise is at 5:38 am and sunset at 7:44 pm. On the last day of May, sunrise is at 5:10 am and sunset at 8:14 pm EDT.

Sunshine

In Brighton, the average sunshine in May is 8.5h.

UV index

In Brighton, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

What is the usual temperature for Brighton in May?

May temperatures vary between a high-temperature of 66.7°F (19.3°C) and a low-temperature of 49.6°F (9.8°C).

What is the average humidity in May?

The average relative humidity in May is 73%.

How many days does it rain in May?

In Brighton, in May, during 8.9 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

What is the last month it snows?

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

How many hours of daylight does Brighton have in May?

In May, the average day length is 14h and 37min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:38 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 8:14 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.5h.

What is the UV index intensity in May?

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

Average temperature in May - Brighton, MA
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.6°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 (21.7°F).

Average pressure in May
Brighton, MA

Average pressure in May - Brighton, 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 (29.92"Hg).

Average wind speed in May
Brighton, MA

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

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in May
Brighton, MA

Average humidity in May - Brighton, MA
  • Average humidity in May: 73%

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

Average rainfall in May
Brighton, MA

Average rainfall in May - Brighton, MA
  • Average rainfall in May: 0.51"

The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").

Average rainfall days in May
Brighton, MA

Average rainfall days in May - Brighton, MA
  • Average rainfall days in May: 8.9 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in May
Brighton, MA

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

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

Average snowfall days in May
Brighton, MA

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

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Brighton, 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 6min).

  • 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
Brighton, MA

Average sunshine days in May - Brighton, MA
  • Average sunshine days in May: 18.7 days

The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).

Average UV index in May
Brighton, MA

Average UV index in May - Brighton, 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
Brighton, MA

Average cloud cover in May - Brighton, 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 32).

Average visibility in May
Brighton, MA

Average visibility in May - Brighton, 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).

Brighton, Massachusetts, USA

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