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
May's onset brings a temperature rise, moving from a fresh 52.3°F (11.3°C) in April to an enjoyable 65.8°F (18.8°C). An average temperature of 47.3°F (8.5°C) is recorded in Princeton during the nights in May.Humidity
The average relative humidity in May is 78%.Rainfall
In Princeton, in May, during 16.2 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Princeton, during the entire year, the rain falls for 129.3 days and collects up to 25.51" (648mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Princeton aggregates 0.04" (1mm) of snow. In Princeton, during the entire year, snow falls for 49.7 days and aggregates up to 18.86" (479mm) of snow.Daylight
In May, the average length of the day is 14h and 46min.On the first day of the month, sunrise is at 5:47 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:17 am and sunset at 8:31 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Princeton in May?
What is the average humidity in May in Princeton?
How much does it rain in Princeton in May?
What is the last month it snows in Princeton?
How many hours of daylight does Princeton have in May?
What time are sunrise and sunset in May in Princeton?
How many hours of sunshine does Princeton have in May?
What is the month with the highest UV index in Princeton?
What is the UV index intensity in May in Princeton?
Average temperature in May
Princeton, WI
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in May: 47.3°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).
Average pressure in May
Princeton, WI
- Average pressure in May: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Princeton, WI
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in May
Princeton, WI
- Average humidity in May: 78%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Princeton, WI
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in May
Princeton, WI
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (3 days).
Average snowfall in May
Princeton, WI
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Princeton, WI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (12.7 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, WI
- Average daylight in May: 14h and 5min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Princeton, WI
- Average sunshine days in May: 12 days
The month with the most sunshine days is December (17.9 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in May
Princeton, WI
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Princeton, WI
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Princeton, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Princeton, Wisconsin, USA
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