Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The advent of August in Grand Rapids observes an average high-temperature of a still moderately hot 78.6°F (25.9°C), nearly identical to July's 79.7°F (26.5°C). Throughout the nights in August, Grand Rapids experiences an average low-temperature of 60.4°F (15.8°C).Humidity
The average relative humidity in August in Grand Rapids is 78%.Rainfall
In Grand Rapids, in August, during 9.9 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, in Grand Rapids, there are 103.5 rainfall days, and 9.02" (229mm) of precipitation is accumulated.Snowfall
In Grand Rapids, Michigan, snow does not fall in May through October.Daylight
In August, the average length of the day is 13h and 53min.On the first day of August, sunrise is at 6:34 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:18 pm EDT.
Sunshine
The average sunshine in August is 9.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What are the temperatures in Grand Rapids in August?
What is the average humidity in August in Grand Rapids?
How much does it rain in Grand Rapids in August?
When it does not snow in Grand Rapids?
What is the average length of the day in August in Grand Rapids?
When is the sunrise / sunset in August in Grand Rapids?
How long on average sun shines in August in Grand Rapids?
What are the months with the highest UV index in Grand Rapids?
What is the UV index reading in August in Grand Rapids?
Average temperature in August
Grand Rapids, MI
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in August
Grand Rapids, MI
- Average pressure in August: 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 August
Grand Rapids, MI
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in August
Grand Rapids, MI
- Average humidity in August: 78%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in August
Grand Rapids, MI
- Average rainfall in August: 0.87"
The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is March (0.47").
Average rainfall days in August
Grand Rapids, MI
- Average rainfall days in August: 9.9 days
The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in August
Grand Rapids, MI
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Grand Rapids, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Grand Rapids, MI
- Average daylight in August: 13h and 5min
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 August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in August
Grand Rapids, MI
- Average sunshine days in August: 17.3 days
The month with the most sunshine days is September (21 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in August
Grand Rapids, MI
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Grand Rapids, MI
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in August
Grand Rapids, MI
- Average visibility in August: 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).
Grand Rapids, Michigan, USA
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