May weather forecastChelsea, MI
May
Weather in May
The last month of the spring, May, is a refreshing month in Chelsea, Michigan, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 67.1°F (19.5°C).Temperature
The shift from April to May sees an increase in the average high-temperature, transitioning from a cool 54.1°F (12.3°C) to a comfortable 67.1°F (19.5°C). During the nights in May, an average low-temperature of 49.5°F (9.7°C) is observed.Humidity
In May, the average relative humidity is 80%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 3.43" (87mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Chelsea. May is the last month it regularly snows in Chelsea. During 0.2 snowfall days, in May, Chelsea aggregates 0.08" (2mm) of snow. Throughout the year, there are 56.8 snowfall days, and 18.58" (472mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 37min.On the first day of May, sunrise is at 6:30 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 9:05 pm EDT.
Sunshine
In Chelsea, the average sunshine in May is 8.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Chelsea, Michigan. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Chelsea, MI
- Average high temperature in May: 67.1°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 (27.9°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in May
Chelsea, MI
- Average pressure in May: 29.98"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Chelsea, MI
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in May
Chelsea, MI
- Average humidity in May: 80%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Chelsea, MI
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (1.46").
Average rainfall days in May
Chelsea, MI
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in May
Chelsea, MI
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Chelsea, MI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Chelsea, MI
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Chelsea, MI
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is March (14.8 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in May
Chelsea, MI
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Chelsea, MI
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Chelsea, MI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, October and November (6mi).
The months with the lowest visibility are January, February, August, September and December (5mi).





