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
In Princeton, the onset of May comes with an increased average high-temperature, moving from April's frosty 48.9°F (9.4°C) to a comfortable 61.3°F (16.3°C). Princeton throughout May, experiences an average nighttime temperature of 41.7°F (5.4°C).Humidity
May is the least humid month, with an average relative humidity of 77%.Rainfall
In May, the rain falls for 10.2 days. Throughout May, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Princeton, there are 96.3 rainfall days, and 9.45" (240mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Princeton. May is the last month it regularly snows in Princeton. During 0.1 snowfall days, in May, Princeton aggregates 0.12" (3mm) of snow. Throughout the year, in Princeton, there are 45.4 snowfall days, and 9.69" (246mm) of snow is accumulated.Daylight
In May, the average length of the day in Princeton is 14h and 53min.On the first day of the month, sunrise is at 5:17 am and sunset at 7:36 pm. On the last day of May, sunrise is at 4:46 am and sunset at 8:10 pm EDT.
Sunshine
In May, the average sunshine in Princeton is 7.6h.UV index
In Princeton, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in May leads to these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Princeton in May?
What is the least humid month in Princeton?
What is the average humidity in May in Princeton?
How many days does it rain in May in Princeton?
What is the last month it snows in Princeton?
How many hours of daylight does Princeton have in May?
When are sunrise and sunset in May in Princeton?
How long on average sun shines in May in Princeton?
What is the UV index reading in May in Princeton?
Average temperature in May
Princeton, ME
- Average high temperature in May: 61.3°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 41.7°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in May
Princeton, ME
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Princeton, 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 (5.6mph).
Average humidity in May
Princeton, ME
- Average humidity in May: 77%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (77%).
Average rainfall in May
Princeton, ME
- Average rainfall in May: 0.75"
The wettest month (with the highest rainfall) is November (1.06").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in May
Princeton, ME
- Average rainfall days in May: 10.2 days
The month with the highest number of rainy days is June (11.3 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in May
Princeton, ME
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Princeton, ME
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Princeton, ME
- Average daylight in May: 14h and 5min
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 4min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in May
Princeton, ME
- Average sunshine days in May: 18.1 days
The month with the most sunshine days is September (21 days).
The month with the least sunshine days is April (15.9 days).
Average UV index in May
Princeton, 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 February, November and December (UV index 1).
Average cloud cover in May
Princeton, ME
- Average cloud cover in May: 53
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in May
Princeton, ME
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Princeton, Maine, USA
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