May weather forecastGrand Haven, MI
May
Weather in May
May, the last month of the spring in Grand Haven, is a refreshing month, with an average temperature ranging between min 47.8°F (8.8°C) and max 59°F (15°C).Temperature
The arrival of May brings a change in Grand Haven's weather, with average high-temperatures moving from April's frosty 48.6°F (9.2°C) to a refreshing 59°F (15°C). Grand Haven usually reports an average low-temperature of 47.8°F (8.8°C) during the month of May.Humidity
In May, the average relative humidity is 79%.Rainfall
In Grand Haven, in May, during 15.7 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 139.5 rainfall days, and 22.8" (579mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 41min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:46 pm. On the last day of May, sunrise is at 6:08 am and sunset at 9:17 pm EDT.
Sunshine
The average sunshine in May is 9h.UV index
In Grand Haven, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grand Haven, MI
- Average high temperature in May: 59°F
The warmest month (with the highest average high temperature) is August (75.2°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in May
Grand Haven, 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
Grand Haven, MI
- Average wind speed in May: 9.7mph
The windiest months (with the highest average wind speed) are January and November (12.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in May
Grand Haven, MI
- Average humidity in May: 79%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in May
Grand Haven, MI
- Average rainfall in May: 2.44"
The wettest month (with the highest rainfall) is October (2.56").
The driest month (with the least rainfall) is November (1.22").
Average rainfall days in May
Grand Haven, MI
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in May
Grand Haven, MI
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Grand Haven, MI
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (15.2 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 Haven, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in May
Grand Haven, MI
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is March (16.2 days).
The month with the least sunshine days is January (9.2 days).
Average UV index in May
Grand Haven, MI
- Average UV index in May: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Grand Haven, MI
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in May
Grand Haven, MI
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
