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
As Williams Bay transitions into May, the average high-temperature is observed to rise from a fresh 54.1°F (12.3°C) in April to an enjoyable 66.7°F (19.3°C). During May, Williams Bay experiences an average low-temperature of 48.9°F (9.4°C) at night.Humidity
The average relative humidity in May in Williams Bay, Wisconsin, is 79%.Rainfall
In Williams Bay, during May, the rain falls for 16.4 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 132.3 rainfall days, and 18.7" (475mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in May is 14h and 38min.On the first day of May in Williams Bay, sunrise is at 5:47 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:24 pm CDT.
Sunshine
The average sunshine in May is 8.6h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the temperature in May in Williams Bay?
What is the average humidity in May in Williams Bay?
How many days does it rain in May in Williams Bay?
When it does not snow in Williams Bay?
Does it snow in Williams Bay in May?
How many hours of daylight does Williams Bay have in May?
When are sunrise and sunset in May in Williams Bay?
How long on average sun shines in May in Williams Bay?
What are the months with the highest UV index in Williams Bay?
What is the UV index intensity in May in Williams Bay?
Average temperature in May
Williams Bay, WI
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in May: 48.9°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 (12.9°F).
Average pressure in May
Williams Bay, WI
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Williams Bay, WI
- Average wind speed in May: 8.4mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Williams Bay, WI
- Average humidity in May: 79%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in May
Williams Bay, WI
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is July (2.56").
The driest months (with the least rainfall) are January and December (0.79").
Average rainfall days in May
Williams Bay, WI
- Average rainfall days in May: 16.4 days
The month with the highest number of rainy days is July (17.4 days).
The months with the least rainy days are January and February (3.8 days).
Average snowfall in May
Williams Bay, WI
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Williams Bay, WI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Williams Bay, 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 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Williams Bay, WI
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in May
Williams Bay, 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
Williams Bay, WI
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July, August and September (Cloud cover 35).
Average visibility in May
Williams Bay, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Williams Bay, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location
