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
Waterville in May sees a temperature change, with average high-temperatures moving from a frosty 49.8°F (9.9°C) in April to a comfortable 63°F (17.2°C). In May, the recorded average low-temperature is a frosty 43°F (6.1°C).Humidity
The average relative humidity in May is 79%.Rainfall
In Waterville, during May, the rain falls for 15.9 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Waterville, Maine, during the entire year, the rain falls for 140.4 days and collects up to 28.35" (720mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Waterville aggregates 0.71" (18mm) of snow. Throughout the year, there are 55.2 snowfall days, and 37.83" (961mm) of snow is accumulated.Daylight
The average length of the day in May in Waterville is 14h and 50min.On the first day of May, sunrise is at 5:27 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 4:56 am and sunset at 8:15 pm EDT.
Sunshine
In Waterville, the average sunshine in May is 7.6h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during May leads to these advisories:
Be vigilant - Preventing sunburn is recommended. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Waterville have in May?
What is the UV index intensity in May?
Average temperature in May
Waterville, ME
- Average high temperature in May: 63°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in May: 43°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
Waterville, ME
- Average pressure in May: 29.98"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Waterville, ME
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Waterville, ME
- Average humidity in May: 79%
The months with the highest relative humidity are February and March (85%).
The months with the lowest relative humidity are April and November (78%).
Average rainfall in May
Waterville, ME
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is April (3.03").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in May
Waterville, ME
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in May
Waterville, ME
- Average snowfall in May: 0.71"
The month with the highest snowfall is January (8.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Waterville, ME
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Waterville, 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 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in May
Waterville, ME
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in May
Waterville, 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, October, November and December (UV index 2).
Average cloud cover in May
Waterville, ME
- Average cloud cover in May: 52
The months with the most cloud cover are February, March and April (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in May
Waterville, ME
- Average visibility in May: 5mi
The months with the highest visibility are November and December (6mi).
The month with the lowest visibility is August (4mi).
Waterville, Maine, USA
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