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 arrival of May brings a temperature shift, with the average high-temperature escalating from a frosty 48.6°F (9.2°C) in April to a refreshing 58.6°F (14.8°C). Prospect Harbor's average low-temperature in May is measured at a frosty 44.2°F (6.8°C).Humidity
In May, the average relative humidity in Prospect Harbor is 78%.Rainfall
In Prospect Harbor, in May, during 14.8 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Prospect Harbor, during the entire year, the rain falls for 142.1 days and collects up to 32.28" (820mm) of precipitation.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, Prospect Harbor aggregates 0.08" (2mm) of snow. Throughout the year, there are 48.1 snowfall days, and 23.82" (605mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 49min.On the first day of May, sunrise is at 5:21 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 4:50 am and sunset at 8:09 pm EDT.
Sunshine
The average sunshine in May is 7.8h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 4 suggests these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
Prospect Harbor, ME
- Average high temperature in May: 58.6°F
The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 44.2°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Prospect Harbor, ME
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Prospect Harbor, ME
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in May
Prospect Harbor, ME
- Average humidity in May: 78%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Prospect Harbor, ME
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (1.57").
Average rainfall days in May
Prospect Harbor, ME
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in May
Prospect Harbor, ME
- Average snowfall in May: 0.08"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Prospect Harbor, ME
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Prospect Harbor, ME
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 7h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Prospect Harbor, ME
- Average sunshine days in May: 14.5 days
The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in May
Prospect Harbor, ME
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Prospect Harbor, ME
- Average cloud cover in May: 50
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in May
Prospect Harbor, ME
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Prospect Harbor, Maine, USA
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