May weather forecastSmyrna, MI
May
Weather in May
May, the last month of the spring in Smyrna, is a refreshing month, with an average temperature ranging between max 66.4°F (19.1°C) and min 48.6°F (9.2°C).Temperature
As Smyrna enters May, the average high-temperature increases from the a fresh 53.4°F (11.9°C) of April to an enjoyable 66.4°F (19.1°C). During May, Smyrna sees a mean low-temperature of 48.6°F (9.2°C).Humidity
The average relative humidity in May is 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.7 days and typically aggregates up to 1.65" (42mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In May, the average length of the day is 14h and 41min.On the first day of May, sunrise is at 6:33 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 9:13 pm EDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 during May leads to these advisories:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Smyrna, MI
- Average high temperature in May: 66.4°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 (27.1°F).
- Average low temperature in May: 48.6°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in May
Smyrna, MI
- 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 (29.92"Hg).
Average wind speed in May
Smyrna, MI
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in May
Smyrna, MI
- Average humidity in May: 78%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Smyrna, MI
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is May (1.65").
The driest month (with the least rainfall) is November (0.71").
Average rainfall days in May
Smyrna, MI
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in May
Smyrna, MI
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Smyrna, MI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Smyrna, MI
- 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 36min
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 30min).
Average sunshine days in May
Smyrna, MI
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is September (17.7 days).
The months with the least sunshine days are January, February and May (12.8 days).
Average UV index in May
Smyrna, MI
- 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
Smyrna, MI
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Smyrna, MI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





