May weather forecast
Knightville, MA

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Weather in May

The last month of the spring, May, is a comfortable month in Knightville, Massachusetts, with an average temperature varying between 47.1°F (8.4°C) and 66.2°F (19°C).

Temperature

With the onset of May, Knightville sees a temperature rise, with the average high-temperature moving from April's cool 54°F (12.2°C) to an enjoyable 66.2°F (19°C). Knightville in May anticipates an average nighttime temperature of 47.1°F (8.4°C).

Humidity

In May, the average relative humidity is 76%.

Rainfall

In May, the rain falls for 16.9 days. Throughout May, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 155.8 rainfall days, and 32.87" (835mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, Knightville aggregates 0.43" (11mm) of snow. Throughout the year, there are 54.3 snowfall days, and 34.45" (875mm) of snow is accumulated.

Daylight

The average length of the day in May in Knightville is 14h and 37min.
On the first day of the month, sunrise is at 5:45 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:17 am and sunset at 8:21 pm EDT.

Sunshine

In May, the average sunshine is 8.1h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 5 during May translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.

Frequently asked questions

What is the average May temperature?

In May, the average high-temperature and low-temperature are 66.2°F (19°C) and 47.1°F (8.4°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 76%.

How many days does it rain in May?

In Knightville, in May, it is raining for 16.9 days, with typically 3.03" (77mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.7 snowfall days, in May, Knightville aggregates 0.43" (11mm) of snow.

How many hours of daylight does Knightville have in May?

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

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:45 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:21 pm EDT.

How many hours of sunshine does Knightville have in May?

The average sunshine duration in May is 8.1h.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index intensity in May?

In May, the average daily maximum UV index in Knightville is 5. A UV Index estimate 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
Knightville, MA

Average temperature in May - Knightville, MA
  • Average high temperature in May: 66.2°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in May: 47.1°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in May
Knightville, MA

Average pressure in May - Knightville, 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 (29.93"Hg).

Average wind speed in May
Knightville, MA

Average wind speed in May - Knightville, MA
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
Knightville, MA

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

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (74%).

Average rainfall in May
Knightville, MA

Average rainfall in May - Knightville, MA
  • Average rainfall in May: 3.03"

The wettest month (with the highest rainfall) is October (3.35").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in May
Knightville, MA

Average rainfall days in May - Knightville, MA
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in May
Knightville, MA

Average snowfall in May - Knightville, MA
  • Average snowfall in May: 0.43"

The month with the highest snowfall is February (7.87").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Knightville, MA

Average snowfall days in May - Knightville, MA
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Knightville, 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: 4h and 6min).

Average sunshine days in May
Knightville, MA

Average sunshine days in May - Knightville, MA
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in May
Knightville, MA

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

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

Average cloud cover in May
Knightville, MA

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

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 38).

Average visibility in May
Knightville, MA

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

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

Knightville, Massachusetts, USA

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