May weather forecastHarvey, MI
May
Weather in May
The last month of the spring, May, is a moderate month in Harvey, Michigan, with an average temperature fluctuating between 40.8°F (4.9°C) and 58.3°F (14.6°C).Temperature
A noticeable upsurge in temperatures is seen as April gives way to May, with average highs moving from a chilly 43.2°F (6.2°C) to a mild 58.3°F (14.6°C). In May, Harvey encounters an average low-temperature of 40.8°F (4.9°C) during the night.Humidity
With an average relative humidity of 72%, May is the least humid month.Rainfall
In Harvey, during May, the rain falls for 14.3 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Harvey, during the entire year, the rain falls for 117.1 days and collects up to 23.35" (593mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Harvey. During 1.8 snowfall days, in May, Harvey aggregates 0.43" (11mm) of snow. Throughout the year, there are 113.9 snowfall days, and 48.7" (1237mm) of snow is accumulated.Ocean temperature
In Harvey, Michigan, the average seawater temperature in May is 37.8°F (3.2°C).Note: With respect to swimming, this presents an immediate life risk. Instant loss of breath control impedes logical thought. The use of a specialized swimsuit is vital to curb thermal loss.
Daylight
The average length of the day in May in Harvey is 15h and 2min.On the first day of the month, sunrise is at 6:33 am and sunset at 8:59 pm. On the last day of May, sunrise is at 6:00 am and sunset at 9:34 pm EDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
The average daily maximum UV index in May in Harvey is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: An average UV index of 4 in May transforms into this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Harvey, MI
- Average high temperature in May: 58.3°F
The warmest month (with the highest average high temperature) is July (73.2°F).
The month with the lowest average high temperature is January (21.4°F).
- Average low temperature in May: 40.8°F
The month with the highest average low temperature is August (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in May
Harvey, MI
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Harvey, MI
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7.5mph).
Average humidity in May
Harvey, MI
- Average humidity in May: 72%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (72%).
Average rainfall in May
Harvey, MI
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in May
Harvey, MI
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in May
Harvey, MI
- Average snowfall in May: 0.43"
The month with the highest snowfall is December (9.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Harvey, MI
- Average snowfall days in May: 1.8 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Harvey, MI
- Average sea temperature in May: 37.8°F
The best month for swimming (with the highest average sea temperature) is August (64.3°F).
The coldest months (with the lowest average sea temperature) are February and March (33.7°F).
Average daylight in May /
Average sunshine in May
Harvey, MI
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in May
Harvey, MI
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is July (15.8 days).
The month with the least sunshine days is January (7.3 days).
Average UV index in May
Harvey, MI
- 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, March, November and December (UV index 1).
Average cloud cover in May
Harvey, MI
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in May
Harvey, MI
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (4mi).





