May weather forecastBoothbay, ME
May
Weather in May
The last month of the spring, May, is a mild month in Boothbay, Maine, with temperature in the range of an average high of 59.4°F (15.2°C) and an average low of 45.5°F (7.5°C).Temperature
Observing a rise in May, the average high-temperature goes from April's frosty 49.1°F (9.5°C) to a moderate 59.4°F (15.2°C). In Boothbay, May nights witness a steady temperature drop to a frosty 45.5°F (7.5°C).Humidity
In Boothbay, the average relative humidity in May is 80%.Rainfall
In Boothbay, in May, during 14.9 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 142.1 rainfall days, and 30.51" (775mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Boothbay aggregates 0.16" (4mm) of snow. Throughout the year, there are 40 snowfall days, and 20.08" (510mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 46min.On the first day of the month, sunrise is at 5:29 am and sunset at 7:41 pm. On the last day of May, sunrise is at 4:59 am and sunset at 8:13 pm EDT.
Sunshine
The average sunshine in May is 8h.UV index
In Boothbay, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during May translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Boothbay, ME
- Average high temperature in May: 59.4°F
The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 45.5°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
Boothbay, ME
- Average pressure in May: 29.99"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Boothbay, ME
- Average wind speed in May: 8.1mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Boothbay, ME
- Average humidity in May: 80%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Boothbay, ME
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in May
Boothbay, ME
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in May
Boothbay, ME
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Boothbay, ME
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Boothbay, ME
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in May
Boothbay, ME
- Average sunshine days in May: 14.4 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in May
Boothbay, ME
- Average UV index in May: 4
The month with the highest UV index is July (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
Boothbay, ME
- Average cloud cover in May: 48
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Boothbay, ME
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
