May weather forecastGrand Blanc, MI
May
Weather in May
May, the last month of the spring in Grand Blanc, is a refreshing month, with an average temperature fluctuating between 47.7°F (8.7°C) and 66.2°F (19°C).Temperature
May brings a temperature increase, with average high-temperatures moving from April's fresh 53.2°F (11.8°C) to an enjoyable 66.2°F (19°C). May nights in Grand Blanc are marked by an average temperature drop to a frosty 47.7°F (8.7°C).Humidity
In May, the average relative humidity is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.03" (77mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Grand Blanc. May is the last month it regularly snows in Grand Blanc. During 0.3 snowfall days, in May, Grand Blanc aggregates 0.04" (1mm) of snow. Throughout the year, there are 71.3 snowfall days, and 21.89" (556mm) of snow is accumulated.Daylight
In May, the average length of the day in Grand Blanc, Michigan, is 14h and 40min.On the first day of the month, sunrise is at 6:27 am and sunset at 8:35 pm. On the last day of May, in Grand Blanc, sunrise is at 5:58 am and sunset at 9:06 pm EDT.
Sunshine
The average sunshine in May in Grand Blanc is 8.3h.UV index
The months with the highest UV index in Grand Blanc are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 5 in May transforms into the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grand Blanc, MI
- Average high temperature in May: 66.2°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in May: 47.7°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 (16.2°F).
Average pressure in May
Grand Blanc, MI
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Grand Blanc, MI
- Average wind speed in May: 8.3mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in May
Grand Blanc, MI
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Grand Blanc, MI
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is May (3.03").
The driest months (with the least rainfall) are September and December (1.57").
Average rainfall days in May
Grand Blanc, MI
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in May
Grand Blanc, MI
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (6.14").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Grand Blanc, MI
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grand Blanc, 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 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 48min).
Average sunshine days in May
Grand Blanc, MI
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is January (8.4 days).
Average UV index in May
Grand Blanc, 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 and December (UV index 1).
Average cloud cover in May
Grand Blanc, MI
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Grand Blanc, MI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).
