May weather forecastDeerfield, WI
May
Weather in May
May, the last month of the spring in Deerfield, is a refreshing month, with temperature in the range of an average high of 66.4°F (19.1°C) and an average low of 48.7°F (9.3°C).Temperature
An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a cool 54°F (12.2°C) to a comfortable 66.4°F (19.1°C). May in Deerfield, Wisconsin, witnesses an average low-temperature hovering around a frosty 48.7°F (9.3°C).Humidity
In Deerfield, the average relative humidity in May is 79%.Rainfall
In May, in Deerfield, the rain falls for 17.4 days. Throughout May, 3.27" (83mm) of precipitation is accumulated. In Deerfield, during the entire year, the rain falls for 134.9 days and collects up to 26.34" (669mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Deerfield. May is the last month it regularly snows in Deerfield. During 0.2 snowfall days, in May, Deerfield aggregates 0.04" (1mm) of snow. In Deerfield, during the entire year, snow falls for 45 days and aggregates up to 18.19" (462mm) of snow.Daylight
In May, the average length of the day is 14h and 41min.On the first day of the month, sunrise is at 5:48 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:19 am and sunset at 8:28 pm CDT.
Sunshine
In Deerfield, the average sunshine in May is 8.4h.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 medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In May, a regular UV index of 5 translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Deerfield, WI
- Average high temperature in May: 66.4°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
Deerfield, 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
Deerfield, WI
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Deerfield, WI
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Deerfield, WI
- Average rainfall in May: 3.27"
The wettest month (with the highest rainfall) is June (3.5").
The driest months (with the least rainfall) are January and February (1.1").
Average rainfall days in May
Deerfield, WI
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (4 days).
Average snowfall in May
Deerfield, WI
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Deerfield, WI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Deerfield, 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 24min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in May
Deerfield, WI
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in May
Deerfield, 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, November and December (UV index 1).
Average cloud cover in May
Deerfield, WI
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in May
Deerfield, 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).
