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
The shift from April to May sees an increase in the average high-temperature, transitioning from a fresh 52.7°F (11.5°C) to a comfortable 64.6°F (18.1°C). In the month of May, the average low-temperature usually rests at a frosty 47.7°F (8.7°C).Humidity
In May, the average relative humidity is 79%.Rainfall
In Delafield, during May, the rain falls for 15 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, in Delafield, Wisconsin, there are 127.5 rainfall days, and 18.94" (481mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Delafield, Wisconsin. During 0.3 snowfall days, in May, Delafield aggregates 0.04" (1mm) of snow. In Delafield, during the entire year, snow falls for 48.5 days and aggregates up to 11.02" (280mm) of snow.Daylight
In Delafield, the average length of the day in May is 14h and 41min.On the first day of the month, sunrise is at 5:46 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:17 am and sunset at 8:25 pm CDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Delafield. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Delafield?
What is the average humidity in May in Delafield?
How many days does it rain in May in Delafield?
What is the last month it snows in Delafield?
How many hours of daylight does Delafield have in May?
When are sunrise and sunset in May in Delafield?
How many hours of sunshine does Delafield have in May?
What are the months with the highest UV index in Delafield?
How high is the UV index in May in Delafield?
Average temperature in May
Delafield, WI
- Average high temperature in May: 64.6°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in May: 47.7°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in May
Delafield, 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 (29.92"Hg).
Average wind speed in May
Delafield, WI
- Average wind speed in May: 8.5mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Delafield, WI
- Average humidity in May: 79%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Delafield, WI
- Average rainfall in May: 2.13"
The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in May
Delafield, WI
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in May
Delafield, WI
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Delafield, WI
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Delafield, WI
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in May
Delafield, WI
- Average sunshine days in May: 13.4 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in May
Delafield, 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 and December (UV index 1).
Average cloud cover in May
Delafield, WI
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in May
Delafield, WI
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Delafield, Wisconsin, USA
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