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
In Blackstone, the average high-temperature in May increases from a mild 56.3°F (13.5°C) in April to an enjoyable 67.6°F (19.8°C). The average low-temperature, is 49.1°F (9.5°C).Humidity
In May, the average relative humidity is 75%.Rainfall
In Blackstone, in May, it is raining for 14.1 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, 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. In Blackstone, Massachusetts, during the entire year, snow falls for 28.8 days and aggregates up to 14.65" (372mm) of snow.Daylight
In May, the average length of the day in Blackstone is 14h and 35min.On the first day of the month, sunrise is at 5:41 am and sunset at 7:44 pm. On the last day of May, sunrise is at 5:13 am and sunset at 8:14 pm EDT.
Sunshine
In May, the average sunshine is 7.8h.UV index
The average daily maximum UV index in May in Blackstone is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
FAQ
What is the temperature in May in Blackstone?
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?
What is the average length of the day in May in Blackstone?
When is the sunrise / sunset in May in Blackstone?
How long on average sun shines in May in Blackstone?
What is the UV index reading 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).
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