May weather forecastCliff Island, ME
May
Weather in May
The last month of the spring, May, is a mild month in Cliff Island, Maine, with an average temperature fluctuating between 46.8°F (8.2°C) and 57.7°F (14.3°C).Temperature
May's arrival is marked by an increase in the average high-temperature, moving from a frosty 48°F (8.9°C) in April to a moderate 57.7°F (14.3°C). Cliff Island anticipates an average minimum temperature of 46.8°F (8.2°C) in the month of May.Humidity
In May, the average relative humidity in Cliff Island is 81%.Rainfall
In May, the rain falls for 12.6 days. Throughout May, 1.57" (40mm) of precipitation is accumulated. In Cliff Island, during the entire year, the rain falls for 117.6 days and collects up to 19.8" (503mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in May is 14h and 44min.On the first day of May, sunrise is at 5:31 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:01 am and sunset at 8:14 pm EDT.
Sunshine
The average sunshine in May is 8.3h.UV index
In Cliff Island, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 4 during May translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cliff Island, ME
- Average high temperature in May: 57.7°F
The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in May: 46.8°F
The months with the highest average low temperature are July and August (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in May
Cliff Island, ME
- Average pressure in May: 29.99"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Cliff Island, ME
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in May
Cliff Island, ME
- Average humidity in May: 81%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (74%).
Average rainfall in May
Cliff Island, ME
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is October (2.28").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in May
Cliff Island, ME
- Average rainfall days in May: 12.6 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in May
Cliff Island, ME
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Cliff Island, ME
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.9 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
Cliff Island, ME
- Average daylight in May: 14h and 42min
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 18min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in May
Cliff Island, ME
- Average sunshine days in May: 16.6 days
The month with the most sunshine days is September (19 days).
The month with the least sunshine days is July (14.7 days).
Average UV index in May
Cliff Island, 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
Cliff Island, ME
- Average cloud cover in May: 46
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Cliff Island, ME
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
