May weather forecast
Dalton, MA

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Weather in May

May, the last month of the spring in Dalton, is an enjoyable month, with an average temperature ranging between min 45.9°F (7.7°C) and max 65.8°F (18.8°C).

Temperature

May brings a rise in Dalton's average high-temperature, moving from a fresh 52.9°F (11.6°C) in April to an enjoyable 65.8°F (18.8°C). Dalton usually reports an average low-temperature of 45.9°F (7.7°C) during the month of May.

Humidity

In May, the average relative humidity is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 3.54" (90mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Dalton aggregates 0.51" (13mm) of snow. In Dalton, during the entire year, snow falls for 69.2 days and aggregates up to 40.98" (1041mm) of snow.

Daylight

In Dalton, Massachusetts, the average length of the day in May is 14h and 38min.
On the first day of the month, sunrise is at 5:46 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:18 am and sunset at 8:22 pm EDT.

Sunshine

The average sunshine in May is 8.2h.

UV index

The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 4 in May leads to these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Opt for tightly woven and loose clothing to enhance protection from the Sun. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In May, the average high-temperature and low-temperature are 65.8°F (18.8°C) and 45.9°F (7.7°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 78%.

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 3.54" (90mm) of precipitation.

How many days does it rain in May?

In Dalton, Massachusetts, in May, it is raining for 18.3 days, with typically 3.54" (90mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.6 snowfall days, in May, Dalton aggregates 0.51" (13mm) of snow.

How many hours of daylight does Dalton have in May?

The average day length in May is 14h and 38min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:46 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:22 pm EDT.

How long on average sun shines in May?

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

What is the UV index reading in May?

In Dalton, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Dalton, MA

Average temperature in May - Dalton, MA
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in May: 45.9°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in May
Dalton, MA

Average pressure in May - Dalton, MA
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Dalton, MA

Average wind speed in May - Dalton, MA
  • Average wind speed in May: 6.7mph

The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in May
Dalton, MA

Average humidity in May - Dalton, MA
  • Average humidity in May: 78%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (76%).

Average rainfall in May
Dalton, MA

Average rainfall in May - Dalton, MA
  • Average rainfall in May: 3.54"

The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is January (2.4").

Average rainfall days in May
Dalton, MA

Average rainfall days in May - Dalton, MA
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in May
Dalton, MA

Average snowfall in May - Dalton, MA
  • Average snowfall in May: 0.51"

The month with the highest snowfall is February (10.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Dalton, MA

Average snowfall days in May - Dalton, MA
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is February (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Dalton, 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 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days in May
Dalton, MA

Average sunshine days in May - Dalton, MA
  • Average sunshine days in May: 9.8 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is June (9.1 days).

Average UV index in May
Dalton, MA

Average UV index in May - Dalton, MA
  • Average UV index in May: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in May
Dalton, MA

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

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in May
Dalton, MA

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

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).

Dalton, Massachusetts, USA

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