May weather forecast
Brookline, MA

A small league field in Brookline, Massachusetts, overlooking bright yellow trees in the fall, behind the cityscape of Boston
A small league field in Brookline, Massachusetts, overlooking bright yellow trees in the fall, behind the cityscape of Boston

Weather in May

The last month of the spring, May, is an enjoyable month in Brookline, Massachusetts, with temperature in the range of an average low of 49.8°F (9.9°C) and an average high of 66.7°F (19.3°C).

Temperature

In May, the average high-temperature increases from a mild 55.6°F (13.1°C) in April to a comfortable 66.7°F (19.3°C). The average low-temperature, in May, is 49.8°F (9.9°C).

Humidity

In Brookline, the average relative humidity in May is 72%.

Rainfall

In May, the rain falls for 7.8 days. Throughout May, 0.43" (11mm) of precipitation is accumulated. In Brookline, during the entire year, the rain falls for 81.8 days and collects up to 5.51" (140mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, Brookline aggregates 0.04" (1mm) of snow. Throughout the year, there are 16.8 snowfall days, and 2.4" (61mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 37min.
On the first day of the month, sunrise is at 5:39 am and sunset at 7:43 pm. On the last day of May, sunrise is at 5:10 am and sunset at 8:13 pm EDT.

Sunshine

The average sunshine in May in Brookline is 8.4h.

UV index

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 ordinary person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in May in Brookline?

The average high-temperature, in May, in Brookline, Massachusetts, is 66.7°F (19.3°C), while the average low-temperature is 49.8°F (9.9°C).

What is the average humidity in May in Brookline?

The average relative humidity in May in Brookline, Massachusetts, is 72%.

How much does it rain in Brookline in May?

In May, in Brookline, Massachusetts, the rain falls for 7.8 days. Throughout May, 0.43" (11mm) of precipitation is accumulated.

What is the last month it snows in Brookline?

May is the last month it regularly snows in Brookline. During 0.1 snowfall days, in May, Brookline aggregates 0.04" (1mm) of snow.

How many hours of daylight does Brookline have in May?

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

What time are sunrise and sunset in May in Brookline?

In May, on the first day of the month, sunrise is at 5:39 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 8:13 pm EDT.

How long on average sun shines in May in Brookline?

The average sunshine duration in May in Brookline is 8.4h.

How high is the UV index in May in Brookline?

In Brookline, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Brookline, MA

Average temperature in May - Brookline, 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 (33.8°F).

  • Average low temperature in May: 49.8°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in May
Brookline, MA

Average pressure in May - Brookline, MA
  • Average pressure in May: 30.01"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
Brookline, MA

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

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in May
Brookline, MA

Average humidity in May - Brookline, MA
  • Average humidity in May: 72%

The months with the highest relative humidity are January and February (77%).
The month with the lowest relative humidity is April (69%).

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Average rainfall in May
Brookline, MA

Average rainfall in May - Brookline, MA
  • Average rainfall in May: 0.43"

The wettest month (with the highest rainfall) is November (0.63").
The driest month (with the least rainfall) is September (0.2").

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Average rainfall days in May
Brookline, MA

Average rainfall days in May - Brookline, MA
  • Average rainfall days in May: 7.8 days

The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in May
Brookline, MA

Average snowfall in May - Brookline, MA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Brookline, MA

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

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Brookline, MA
  • Average daylight in May: 14h and 37min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in May: 8h and 24min

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).

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Average sunshine days in May
Brookline, MA

Average sunshine days in May - Brookline, MA
  • Average sunshine days in May: 19.4 days

The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is June (17.4 days).

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Average UV index in May
Brookline, MA

Average UV index in May - Brookline, 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).

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Average cloud cover in May
Brookline, MA

Average cloud cover in May - Brookline, 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).

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Average visibility in May
Brookline, MA

Average visibility in May - Brookline, 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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