May weather forecastMountainview, ME
May
Weather in May
May, the last month of the spring in Mountainview, is a moderate month, with an average temperature fluctuating between 40.5°F (4.7°C) and 59.7°F (15.4°C).Temperature
In Mountainview, stepping into May signifies a significant temperature increment, moving up from April's frosty 43.5°F (6.4°C) to a mild 59.7°F (15.4°C). During May, Mountainview witnesses a consistent average low-temperature of 40.5°F (4.7°C).Humidity
May is the least humid month, with an average relative humidity of 77%.Rainfall
In Mountainview, in May, it is raining for 17.3 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 152.5 rainfall days, and 30.31" (770mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.4 snowfall days, in May, Mountainview aggregates 1.69" (43mm) of snow. In Mountainview, during the entire year, snow falls for 114.7 days and aggregates up to 71.06" (1805mm) of snow.Daylight
The average length of the day in May is 14h and 52min.On the first day of the month, sunrise is at 5:31 am and sunset at 7:49 pm. On the last day of May, sunrise is at 4:59 am and sunset at 8:21 pm EDT.
Sunshine
In Mountainview, the average sunshine in May is 7.3h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 4 in May translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mountainview, ME
- Average high temperature in May: 59.7°F
The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in May: 40.5°F
The month with the highest average low temperature is July (52.9°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in May
Mountainview, ME
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Mountainview, ME
- Average wind speed in May: 6.7mph
The windiest months (with the highest average wind speed) are February, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Mountainview, ME
- Average humidity in May: 77%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in May
Mountainview, ME
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in May
Mountainview, ME
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in May
Mountainview, ME
- Average snowfall in May: 1.69"
The month with the highest snowfall is February (14.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mountainview, ME
- Average snowfall days in May: 1.4 days
The month with the highest number of snowfall days is January (22.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Mountainview, ME
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 7h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in May
Mountainview, ME
- Average sunshine days in May: 11 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.6 days).
Average UV index in May
Mountainview, 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 February, March and December (UV index 1).
Average cloud cover in May
Mountainview, ME
- Average cloud cover in May: 56
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 46).
Average visibility in May
Mountainview, ME
- Average visibility in May: 5mi
The months with the highest visibility are May and June (5mi).
The months with the lowest visibility are January, February, March, April, July, August, September, October, November and December (4mi).





