May weather forecastWhitefish Bay, WI
May
Weather in May
The last month of the spring, May, is a moderate month in Whitefish Bay, Wisconsin, with an average temperature fluctuating between 58.6°F (14.8°C) and 47.5°F (8.6°C).Temperature
May's onset witnesses a shift in the average high-temperature, moving from a chilly 48.2°F (9°C) in April to a moderate 58.6°F (14.8°C). In May, the average low-temperature records at a chilly 47.5°F (8.6°C) during the nights.Humidity
In May, the average relative humidity is 79%.Rainfall
In May, the rain falls for 15.2 days. Throughout May, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 129.5 rainfall days, and 18.62" (473mm) of precipitation is accumulated.Snowfall
In Whitefish Bay, snow does not fall in May through September.Ocean temperature
In Whitefish Bay, in May, the average water temperature is 40.8°F (4.9°C).Note: During the act of swimming, this is a direct threat to life. Breathing becomes erratic and cognitive abilities decline rapidly. The importance of a specialized swimsuit to minimize thermal loss is paramount.
Daylight
The average length of the day in May is 14h and 41min.On the first day of the month, sunrise is at 5:43 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:14 am and sunset at 8:24 pm CDT.
Sunshine
The average sunshine in May is 8.9h.UV index
In Whitefish Bay, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 4 during May translates into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Whitefish Bay, WI
- Average high temperature in May: 58.6°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in May: 47.5°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in May
Whitefish Bay, WI
- Average pressure in May: 29.96"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Whitefish Bay, WI
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in May
Whitefish Bay, WI
- Average humidity in May: 79%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Whitefish Bay, WI
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in May
Whitefish Bay, WI
- Average rainfall days in May: 15.2 days
The months with the highest number of rainy days are May, June and July (15.2 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in May
Whitefish Bay, WI
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Whitefish Bay, WI
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Whitefish Bay, WI
- Average sea temperature in May: 40.8°F
The best month for swimming (with the highest average sea temperature) is August (71.9°F).
The coldest month (with the lowest average sea temperature) is February (36°F).
Average daylight in May /
Average sunshine in May
Whitefish Bay, WI
- Average daylight in May: 14h and 42min
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 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Whitefish Bay, WI
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in May
Whitefish Bay, WI
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Whitefish Bay, WI
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Whitefish Bay, WI
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
