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 shift into May is accompanied by a modest temperature increase, with the average high-temperature edging up from a pleasant 68.7°F (20.4°C) in April to a moderately hot 77.4°F (25.2°C). Boston experiences a mean low-temperature of 58.8°F (14.9°C) during May.Humidity
In May, the average relative humidity is 78%.Rainfall
In Boston, during May, the rain falls for 11.6 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, in Boston, there are 118.2 rainfall days, and 10.83" (275mm) of precipitation is accumulated.Snowfall
In Boston, snow does not fall in April through October.Daylight
In May, the average length of the day is 14h and 5min.On the first day of May in Boston, sunrise is at 5:54 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 7:58 pm CDT.
Sunshine
The average sunshine in May is 9.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 6 during May leads to these advisories:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Boston?
What is the average humidity in May in Boston?
How much does it rain in Boston in May?
When it does not snow in Boston?
How many hours of daylight does Boston have in May?
When is the sunrise / sunset in May in Boston?
How many hours of sunshine does Boston have in May?
What are the months with the highest UV index in Boston?
How high is the UV index in May in Boston?
Average temperature in May
Boston, TN
- Average high temperature in May: 77.4°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in May: 58.8°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in May
Boston, TN
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Boston, TN
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Boston, TN
- Average humidity in May: 78%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Boston, TN
- Average rainfall in May: 0.83"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in May
Boston, TN
- Average rainfall days in May: 11.6 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (6 days).
Average snowfall in May
Boston, TN
- Average snowfall in May: 0"
The months with the highest snowfall are January, February and December (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Boston, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Boston, TN
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Boston, TN
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in May
Boston, TN
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in May
Boston, TN
- Average cloud cover in May: 38
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Boston, TN
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
Boston, Tennessee, USA
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