May weather forecastBranch, WI
May
Weather in May
The last month of the spring, May, is a refreshing month in Branch, Wisconsin, with an average temperature fluctuating between 45.1°F (7.3°C) and 56.5°F (13.6°C).Temperature
May's arrival coincides with a rise in the average high-temperature, moving from April's frosty 46°F (7.8°C) to a moderate 56.5°F (13.6°C). Nightly temperatures drop to an average low of 45.1°F (7.3°C) in May.Humidity
In Branch, the average relative humidity in May is 79%.Rainfall
In May, the rain falls for 11.4 days. Throughout May, 1.22" (31mm) of precipitation is accumulated. In Branch, during the entire year, the rain falls for 108.5 days and collects up to 10.67" (271mm) of precipitation.Snowfall
Months with snowfall in Branch are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Branch aggregates 0.04" (1mm) of snow. In Branch, during the entire year, snow falls for 43 days and aggregates up to 4.72" (120mm) of snow.Daylight
The average length of the day in May in Branch is 14h and 47min.On the first day of the month, sunrise is at 5:40 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:10 am and sunset at 8:27 pm CDT.
Sunshine
The average sunshine in May in Branch is 9.1h.UV index
The average daily maximum UV index in May in Branch is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 in May translates into this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Branch, WI
- Average high temperature in May: 56.5°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 45.1°F
The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in May
Branch, 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
Branch, WI
- Average wind speed in May: 9.9mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).
Average humidity in May
Branch, WI
- Average humidity in May: 79%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are October and November (77%).
Average rainfall in May
Branch, WI
- Average rainfall in May: 1.22"
The wettest month (with the highest rainfall) is July (1.34").
The driest months (with the least rainfall) are February and November (0.47").
Average rainfall days in May
Branch, WI
- Average rainfall days in May: 11.4 days
The months with the highest number of rainy days are June and July (12.1 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in May
Branch, WI
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Branch, WI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Branch, WI
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Branch, WI
- Average sunshine days in May: 17.8 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in May
Branch, 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, February and December (UV index 1).
Average cloud cover in May
Branch, WI
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in May
Branch, 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).





