May weather forecastSmyrna Mills, ME
May
Weather in May
The last month of the spring, May, is a refreshing month in Smyrna Mills, Maine, with an average temperature varying between 40.8°F (4.9°C) and 60.8°F (16°C).Temperature
A noticeable upsurge in temperatures is seen as April gives way to May, with average highs moving from a chilly 45.9°F (7.7°C) to an enjoyable 60.8°F (16°C). Smyrna Mills's average low-temperature is measured at a wintry 40.8°F (4.9°C) during May.Humidity
May is the least humid month in Smyrna Mills, with an average relative humidity of 76%.Rainfall
In Smyrna Mills, in May, it is raining for 16.9 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, in Smyrna Mills, Maine, there are 147.4 rainfall days, and 31.81" (808mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Smyrna Mills, Maine. During 0.8 snowfall days, in May, Smyrna Mills aggregates 1.18" (30mm) of snow. Throughout the year, in Smyrna Mills, there are 88.2 snowfall days, and 62.83" (1596mm) of snow is accumulated.Daylight
In May, the average length of the day in Smyrna Mills is 14h and 59min.On the first day of the month, sunrise is at 5:17 am and sunset at 7:41 pm. On the last day of May, in Smyrna Mills, sunrise is at 4:44 am and sunset at 8:15 pm EDT.
Sunshine
The average sunshine in May is 7.4h.UV index
In May, the average daily maximum UV index in Smyrna Mills is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Smyrna Mills, ME
- Average high temperature in May: 60.8°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (21.9°F).
- Average low temperature in May: 40.8°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in May
Smyrna Mills, ME
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Smyrna Mills, ME
- Average wind speed in May: 7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Smyrna Mills, ME
- Average humidity in May: 76%
The months with the highest relative humidity are January, February and March (91%).
The month with the lowest relative humidity is May (76%).
Average rainfall in May
Smyrna Mills, ME
- Average rainfall in May: 2.72"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (2.17").
Average rainfall days in May
Smyrna Mills, ME
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Smyrna Mills, ME
- Average snowfall in May: 1.18"
The months with the highest snowfall are January and February (13.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Smyrna Mills, ME
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is February (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Smyrna Mills, ME
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 7h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in May
Smyrna Mills, ME
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is April (8.7 days).
Average UV index in May
Smyrna Mills, ME
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in May
Smyrna Mills, ME
- Average cloud cover in May: 53
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in May
Smyrna Mills, ME
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).





