Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival signals an increase in average high-temperatures, moving from April's cool 51.3°F (10.7°C) to an enjoyable 62.6°F (17°C). Grand River records an average nighttime low-temperature of 50°F (10°C) throughout May.Humidity
In Grand River, the average relative humidity in May is 79%.Rainfall
In May, the rain falls for 17.6 days. Throughout May, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 178.9 rainfall days, and 32.2" (818mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day in Grand River is 14h and 34min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:23 pm. On the last day of May, sunrise is at 5:52 am and sunset at 8:52 pm EDT.
Sunshine
The average sunshine in May is 9.2h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Grand River?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
How high is the UV index in May in Grand River?
Average temperature in May
Grand River, OH
- Average high temperature in May: 62.6°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in May: 50°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in May
Grand River, OH
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Grand River, OH
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in May
Grand River, OH
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in May
Grand River, OH
- Average rainfall in May: 2.87"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in May
Grand River, OH
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is October (18 days).
The month with the least rainy days is January (9 days).
Average snowfall in May
Grand River, OH
- Average snowfall in May: 0"
The month with the highest snowfall is February (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Grand River, OH
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Grand River, OH
- Average daylight in May: 14h and 4min
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 12min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in May
Grand River, OH
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is May (11.4 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in May
Grand River, OH
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Grand River, OH
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in May
Grand River, OH
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Grand River, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location