May weather forecast
Worcester, MA

Buildings and a sign of Worcester in Massachusetts
Buildings and a sign of Worcester in Massachusetts

Weather in May

May, the last month of the spring in Worcester, is an enjoyable month, with an average temperature varying between 66.9°F (19.4°C) and 47.7°F (8.7°C).

Temperature

In May, the average high-temperature rises from a fresh 54.9°F (12.7°C) in April to a comfortable 66.9°F (19.4°C). The average low-temperature, in Worcester, is 47.7°F (8.7°C).

Humidity

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

Rainfall

In May, in Worcester, the rain falls for 16.3 days. Throughout May, 2.32" (59mm) of precipitation is accumulated. Throughout the year, in Worcester, there are 146.1 rainfall days, and 28.94" (735mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Worcester are January through May, October through December. May is the last month it regularly snows in Worcester. During 0.1 snowfall days, Worcester aggregates 0.24" (6mm) of snow. Throughout the year, there are 39.9 snowfall days, and 24.45" (621mm) of snow is accumulated.

Daylight

The average length of the day in May in Worcester is 14h and 37min.
On the first day of May, sunrise is at 5:42 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 in Worcester is 8.2h.

UV index

In May, the average daily maximum UV index in Worcester is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Worcester?

In Worcester, in May, the average high-temperature is 66.9°F (19.4°C), and the average low-temperature is 47.7°F (8.7°C).

What is the average humidity in May in Worcester?

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

How many days does it rain in May in Worcester?

In May, in Worcester, the rain falls for 16.3 days. Throughout May, 2.32" (59mm) of precipitation is accumulated.

What is the last month it snows in Worcester?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Worcester aggregates 0.24" (6mm) of snow.

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

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

When are sunrise and sunset in May in Worcester?

On the first day of May in Worcester, Massachusetts, sunrise is at 5:42 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 in Worcester?

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

How high is the UV index in May in Worcester?

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

Average temperature in May
Worcester, MA

Average temperature in May - Worcester, MA
  • Average high temperature in May: 66.9°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in May: 47.7°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in May
Worcester, MA

Average pressure in May - Worcester, 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).

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Average wind speed in May
Worcester, MA

Average wind speed in May - Worcester, MA
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in May
Worcester, MA

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

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in May
Worcester, MA

Average rainfall in May - Worcester, MA
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in May
Worcester, MA

Average rainfall days in May - Worcester, MA
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is May (16.3 days).
The months with the least rainy days are January and February (6.8 days).

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Average snowfall in May
Worcester, MA

Average snowfall in May - Worcester, MA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Worcester, MA

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

The month with the highest number of snowfall days is February (9.7 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
Worcester, MA

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

The month with the longest days is June (Average daylight: 15h and 13min).
The month with the shortest days is December (Average daylight: 9h and 9min).

  • Average sunshine in May: 8h and 12min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in May
Worcester, MA

Average sunshine days in May - Worcester, MA
  • Average sunshine days in May: 13.4 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (12.8 days).

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Average UV index in May
Worcester, MA

Average UV index in May - Worcester, 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
Worcester, MA

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

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in May
Worcester, MA

Average visibility in May - Worcester, 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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