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 signals a rise in the average high-temperature, moving from a chilly 48.6°F (9.2°C) in April to a moderate 58.6°F (14.8°C). Throughout the month of May, Winter Harbor witnesses an average low-temperature of 44.2°F (6.8°C).Humidity
In Winter Harbor, Maine, the average relative humidity in May is 78%.Rainfall
In May, the rain falls for 14.8 days. Throughout May, 2.28" (58mm) of precipitation is accumulated. In Winter 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 in Winter Harbor, Maine, are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Winter Harbor aggregates 0.08" (2mm) of snow. In Winter Harbor, during the entire year, snow falls for 48.1 days and aggregates up to 23.82" (605mm) of snow.Daylight
In Winter Harbor, the average length of the day in May is 14h and 49min.On the first day of the month, sunrise is at 5:21 am and sunset at 7:36 pm. On the last day of May, in Winter Harbor, sunrise is at 4:51 am and sunset at 8:09 pm EDT.
Sunshine
The average sunshine in May in Winter Harbor, Maine, is 7.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 in May translates into this advice:
Be vigilant - Suggestions to stave off sun damage are provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Winter Harbor?
What is the average humidity in May in Winter Harbor?
How much does it rain in Winter Harbor in May?
What is the last month it snows in Winter Harbor?
How many hours of daylight does Winter Harbor have in May?
What time are sunrise and sunset in May in Winter Harbor?
How many hours of sunshine does Winter Harbor have in May?
How high is the UV index in May in Winter Harbor?
Average temperature in May
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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
Winter 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).
Winter Harbor, Maine, USA
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