May weather forecastGalloway, WI
May
Weather in May
May, the last month of the spring in Galloway, is a refreshing month, with an average temperature varying between 46.6°F (8.1°C) and 64°F (17.8°C).Temperature
May's arrival brings a change in high-temperatures, moving from a cool 50.2°F (10.1°C) in April to a refreshing 64°F (17.8°C). Throughout the month of May, the average temperature dips to a frosty 46.6°F (8.1°C) at night.Humidity
In Galloway, the average relative humidity in May is 77%.Rainfall
In Galloway, in May, during 16.1 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 123.2 rainfall days, and 23.54" (598mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Galloway aggregates 0.12" (3mm) of snow. Throughout the year, there are 59.4 snowfall days, and 22.83" (580mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 50min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:14 am and sunset at 8:35 pm CDT.
Sunshine
The average sunshine in May is 8.3h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In May, an average UV index of 4 transforms into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Galloway, WI
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in May: 46.6°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in May
Galloway, 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
Galloway, WI
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).
Average humidity in May
Galloway, WI
- Average humidity in May: 77%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Galloway, WI
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in May
Galloway, WI
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in May
Galloway, WI
- Average snowfall in May: 0.12"
The month with the highest snowfall is December (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Galloway, WI
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Galloway, WI
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in May
Galloway, WI
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is November (17 days).
The months with the least sunshine days are April, May and June (12.7 days).
Average UV index in May
Galloway, WI
- Average UV index in May: 4
The months with the highest UV index are 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
Galloway, WI
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in May
Galloway, 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).





