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
With the onset of May, Porter's average high-temperature experiences a rise, moving from April's fresh 50.4°F (10.2°C) to an enjoyable 64°F (17.8°C). Porter, during the month of May, experiences an average low-temperature of 43.3°F (6.3°C).Humidity
In May, the average relative humidity is 77%.Rainfall
In Porter, Maine, during May, the rain falls for 13.7 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Porter, during the entire year, the rain falls for 131.2 days and collects up to 25.59" (650mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Porter, Maine. May is the last month it regularly snows in Porter. During 0.2 snowfall days, in May, Porter aggregates 0.35" (9mm) of snow. In Porter, during the entire year, snow falls for 49.8 days and aggregates up to 38.19" (970mm) of snow.Daylight
In Porter, the average length of the day in May is 14h and 45min.On the first day of the month, sunrise is at 5:34 am and sunset at 7:46 pm. On the last day of May, sunrise is at 5:04 am and sunset at 8:18 pm EDT.
Sunshine
In May, the average sunshine in Porter is 8h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Porter in May?
What is the average humidity in May in Porter?
How much does it rain in Porter in May?
What is the last month it snows in Porter?
What is the average length of the day in May in Porter?
What time are sunrise and sunset in May in Porter?
How many hours of sunshine does Porter have in May?
When is the highest UV index in Porter?
What is the UV index intensity in May in Porter?
Average temperature in May
Porter, ME
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 43.3°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
Porter, ME
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Porter, ME
- Average wind speed in May: 5.3mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
Porter, ME
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Porter, ME
- Average rainfall in May: 1.93"
The wettest months (with the highest rainfall) are April and October (2.64").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days in May
Porter, ME
- Average rainfall days in May: 13.7 days
The months with the highest number of rainy days are April and July (14.3 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in May
Porter, ME
- Average snowfall in May: 0.35"
The month with the highest snowfall is February (9.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Porter, ME
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Porter, ME
- Average daylight in May: 14h and 5min
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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Porter, ME
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in May
Porter, ME
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Porter, ME
- Average cloud cover in May: 49
The month with the most cloud cover is March (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in May
Porter, ME
- Average visibility in May: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Porter, Maine, USA
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