May weather forecast
Millbury, MA

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Weather in May

May, the last month of the spring in Millbury, is an enjoyable month, with an average temperature ranging between min 48.6°F (9.2°C) and max 67.3°F (19.6°C).

Temperature

May's onset brings a temperature rise, moving from 55.9°F (13.3°C) in April to a still refreshing 67.3°F (19.6°C). In May, the nighttime temperature lowers to an average of 48.6°F (9.2°C).

Humidity

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

Rainfall

In May, the rain falls for 16.1 days. Throughout May, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 152.2 rainfall days, and 30.67" (779mm) 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, Millbury aggregates 0.2" (5mm) of snow. In Millbury, Massachusetts, during the entire year, snow falls for 32.5 days and aggregates up to 18.78" (477mm) of snow.

Daylight

In May, the average length of the day is 14h and 36min.
On the first day of May, sunrise is at 5:41 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:16 pm EDT.

Sunshine

The average sunshine in May is 8.2h.

UV index

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 average individuals.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

What is the usual temperature for Millbury in May?

May temperatures vary between a high-temperature of 67.3°F (19.6°C) and a low-temperature of 48.6°F (9.2°C).

What is the average humidity in May?

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

How many days does it rain in May?

In Millbury, Massachusetts, during May, the rain falls for 16.1 days and regularly aggregates up to 2.48" (63mm) of precipitation.

What is the last month it snows?

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

How many hours of daylight does Millbury have in May?

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

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:41 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:16 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.2h.

What is the UV index reading in May in Millbury?

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Millbury, MA

Average temperature in May - Millbury, 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
Millbury, MA

Average pressure in May - Millbury, 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
Millbury, MA

Average wind speed in May - Millbury, 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
Millbury, MA

Average humidity in May - Millbury, 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
Millbury, MA

Average rainfall in May - Millbury, 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
Millbury, MA

Average rainfall days in May - Millbury, 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
Millbury, MA

Average snowfall in May - Millbury, 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
Millbury, MA

Average snowfall days in May - Millbury, 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
Millbury, MA

Average daylight in May / Average sunshine in May - Millbury, 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
Millbury, MA

Average sunshine days in May - Millbury, 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
Millbury, MA

Average UV index in May - Millbury, 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
Millbury, MA

Average cloud cover in May - Millbury, 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
Millbury, MA

Average visibility in May - Millbury, 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).

Millbury, Massachusetts, USA

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