Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The commencement of May sees a shift in the average high-temperature, moving from a moderate 56.3°F (13.5°C) in April to a still refreshing 67.6°F (19.8°C). During May in Blackstone, the average low-temperature is recorded at a frosty 49.1°F (9.5°C).Humidity
In May, the average relative humidity is 75%.Rainfall
In Blackstone, in May, during 14.1 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Blackstone, there are 144.7 rainfall days, and 28.15" (715mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Blackstone aggregates 0.24" (6mm) of snow. Throughout the year, in Blackstone, Massachusetts, there are 28.8 snowfall days, and 14.65" (372mm) of snow is accumulated.Daylight
The average length of the day in May in Blackstone is 14h and 35min.On the first day of May, sunrise is at 5:40 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:14 pm EDT.
Sunshine
The average sunshine in May in Blackstone is 7.8h.UV index
In Blackstone, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against sun damage is advised. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What are the temperatures in Blackstone in May?
What is the average humidity in May in Blackstone?
How much does it rain in Blackstone in May?
What is the last month it snows in Blackstone?
How many hours of daylight does Blackstone have in May?
What time are sunrise and sunset in May in Blackstone?
How many hours of sunshine does Blackstone have in May?
What is the UV index intensity in May in Blackstone?
Average temperature in May
Blackstone, MA
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 49.1°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in May
Blackstone, 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
Blackstone, MA
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Blackstone, MA
- Average humidity in May: 75%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Blackstone, MA
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is April (2.83").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in May
Blackstone, MA
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (7.9 days).
Average snowfall in May
Blackstone, MA
- Average snowfall in May: 0.24"
The month with the highest snowfall is March (3.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Blackstone, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Blackstone, 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: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in May
Blackstone, MA
- Average sunshine days in May: 14.7 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (12.5 days).
Average UV index in May
Blackstone, 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
Blackstone, MA
- Average cloud cover in May: 50
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Blackstone, MA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Blackstone, Massachusetts, USA
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