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 beginning of May marks a shift in the average high-temperature, moving from April's moderate 55.9°F (13.3°C) to a still refreshing 66.7°F (19.3°C). Throughout the month of May, Wellesley Hills observes an average nighttime temperature of 49.6°F (9.8°C).Humidity
In Wellesley Hills, the average relative humidity in May is 73%.Rainfall
In Wellesley Hills, in May, it is raining for 8.9 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, in Wellesley Hills, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.Snowfall
Months with snowfall in Wellesley Hills, Massachusetts, are January through May, November and December. May is the last month it regularly snows in Wellesley Hills. During 0.1 snowfall days, in May, Wellesley Hills aggregates 0.08" (2mm) of snow. In Wellesley Hills, Massachusetts, during the entire year, snow falls for 18.8 days and aggregates up to 3.15" (80mm) of snow.Daylight
In Wellesley Hills, the average length of the day in May is 14h and 37min.On the first day of the month, sunrise is at 5:39 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:11 am and sunset at 8:14 pm EDT.
Sunshine
In Wellesley Hills, the average sunshine in May is 8.5h.UV index
In Wellesley Hills, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 5 in May suggests the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What are the temperatures in Wellesley Hills in May?
What is the average humidity in May in Wellesley Hills?
How much does it rain in Wellesley Hills in May?
What is the last month it snows in Wellesley Hills?
What is the average length of the day in May in Wellesley Hills?
What time are sunrise and sunset in May in Wellesley Hills?
How many hours of sunshine does Wellesley Hills have in May?
What is the UV index intensity in May in Wellesley Hills?
Average temperature in May
Wellesley Hills, MA
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in May
Wellesley Hills, 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 (29.92"Hg).
Average wind speed in May
Wellesley Hills, MA
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in May
Wellesley Hills, MA
- Average humidity in May: 73%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in May
Wellesley Hills, MA
- Average rainfall in May: 0.51"
The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in May
Wellesley Hills, MA
- Average rainfall days in May: 8.9 days
The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in May
Wellesley Hills, MA
- Average snowfall in May: 0.08"
The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Wellesley Hills, MA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Wellesley Hills, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Wellesley Hills, MA
- Average sunshine days in May: 18.7 days
The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).
Average UV index in May
Wellesley Hills, 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
Wellesley Hills, MA
- Average cloud cover in May: 46
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Wellesley Hills, MA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Wellesley Hills, Massachusetts, USA
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