May weather forecast
Webster, MA

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Weather in May

May, the last month of the spring in Webster, is a comfortable month, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 48°F (8.9°C).

Temperature

May's arrival brings a temperature shift, moving from a moderate 55.6°F (13.1°C) in April to a comfortable 67.1°F (19.5°C). The nighttime temperature, during May, averages of 48°F (8.9°C).

Humidity

The average relative humidity in May in Webster is 76%.

Rainfall

In Webster, during May, the rain falls for 16 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 151.1 rainfall days, and 31.26" (794mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Webster, Massachusetts. During 0.1 snowfall days, in May, Webster aggregates 0.16" (4mm) of snow. Throughout the year, there are 37.7 snowfall days, and 20.59" (523mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 35min.
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 5:14 am and sunset at 8:16 pm EDT.

Sunshine

In May, the average sunshine in Webster is 8.1h.

UV index

In May, the average daily maximum UV index in Webster is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What are May temperatures in Webster?

In Webster, 67.1°F (19.5°C) is the average high-temperature and 48°F (8.9°C) is the average low-temperature during May.

What is the average humidity in May in Webster?

In Webster, Massachusetts, the average relative humidity in May is 76%.

How much does it rain in Webster in May?

In Webster, Massachusetts, in May, it is raining for 16 days, with typically 2.44" (62mm) of accumulated precipitation.

What is the last month it snows in Webster?

May is the last month it regularly snows in Webster. During 0.1 snowfall days, in May, Webster aggregates 0.16" (4mm) of snow.

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

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

When is the sunrise / sunset in May in Webster?

In May, on the first day of the month, sunrise is at 5:42 am and sunset at 7:46 pm. On the last day of the month, in Webster, Massachusetts, sunrise is at 5:14 am and sunset at 8:16 pm EDT.

How long on average sun shines in May in Webster?

The average sunshine duration in May in Webster is 8.1h.

How high is the UV index in May in Webster?

The average daily maximum UV index in May in Webster is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Webster, MA

Average temperature in May - Webster, MA
  • Average high temperature in May: 67.1°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in May: 48°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 (19.6°F).

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Average pressure in May
Webster, MA

Average pressure in May - Webster, MA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Webster, MA

Average wind speed in May - Webster, MA
  • Average wind speed in May: 7mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in May
Webster, MA

Average humidity in May - Webster, MA
  • Average humidity in May: 76%

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
Webster, MA

Average rainfall in May - Webster, MA
  • Average rainfall in May: 2.44"

The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in May
Webster, MA

Average rainfall days in May - Webster, MA
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are January and February (7.8 days).

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Average snowfall in May
Webster, MA

Average snowfall in May - Webster, MA
  • Average snowfall in May: 0.16"

The months with the highest snowfall are February and March (5.08").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Webster, MA

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

The month with the highest number of snowfall days is March (9.1 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
Webster, MA

Average daylight in May / Average sunshine in May - Webster, 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 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in May
Webster, MA

Average sunshine days in May - Webster, MA
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (12.9 days).

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Average UV index in May
Webster, MA

Average UV index in May - Webster, MA
  • Average UV index in May: 5

The months with the highest UV index are June and July (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
Webster, MA

Average cloud cover in May - Webster, 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 37).

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Average visibility in May
Webster, MA

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

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

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Webster, Massachusetts, USA

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