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 arrival coincides with a marginal rise in the average high-temperature, moving from April's cold 41.7°F (5.4°C) to a cool 50°F (10°C). Sister Bay's nocturnal average in May closely mirrors its daytime temperatures, settling at a cold 42.6°F (5.9°C).Humidity
The average relative humidity in May in Sister Bay is 80%.Rainfall
In Sister Bay, during May, the rain falls for 15.1 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, in Sister Bay, Wisconsin, there are 141.7 rainfall days, and 26.93" (684mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Sister Bay. May is the last month it regularly snows in Sister Bay. During 0.5 snowfall days, in May, Sister Bay aggregates 0.08" (2mm) of snow. In Sister Bay, during the entire year, snow falls for 62.3 days and aggregates up to 15.83" (402mm) of snow.Daylight
The average length of the day in May in Sister Bay, Wisconsin, is 14h and 53min.On the first day of May, sunrise is at 5:35 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:04 am and sunset at 8:28 pm CDT.
Sunshine
In Sister Bay, the average sunshine in May is 9.3h.UV index
The average daily maximum UV index in May in Sister Bay is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 4 in May leads to these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Sister Bay?
What is the average humidity in May in Sister Bay?
How many days does it rain in May in Sister Bay?
What is the last month it snows in Sister Bay?
How many hours of daylight does Sister Bay have in May?
What time are sunrise and sunset in May in Sister Bay?
How long on average sun shines in May in Sister Bay?
How high is the UV index in May in Sister Bay?
Average temperature in May
Sister Bay, WI
- Average high temperature in May: 50°F
The warmest month (with the highest average high temperature) is August (69.6°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 42.6°F
The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in May
Sister Bay, WI
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Sister Bay, WI
- Average wind speed in May: 11mph
The windiest month (with the highest average wind speed) is December (15.5mph).
The calmest months (with the lowest average wind speed) are June and July (9.6mph).
Average humidity in May
Sister Bay, WI
- Average humidity in May: 80%
The months with the highest relative humidity are January and June (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Sister Bay, WI
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are January and February (1.38").
Average rainfall days in May
Sister Bay, WI
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in May
Sister Bay, WI
- Average snowfall in May: 0.08"
The month with the highest snowfall is February (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Sister Bay, WI
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sister Bay, WI
- 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in May
Sister Bay, WI
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in May
Sister Bay, WI
- Average UV index in May: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in May
Sister Bay, WI
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in May
Sister Bay, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Sister Bay, Wisconsin, USA
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