July weather forecastSouth Lyon, MI
July
Weather in July
July, like June, in South Lyon, Michigan, is another warm summer month, with an average temperature fluctuating between 79.7°F (26.5°C) and 62.4°F (16.9°C).Temperature
Temperature readings reach their annual highs in July, averaging 79.7°F (26.5°C) and a minimum average of 62.4°F (16.9°C).Humidity
In South Lyon, the average relative humidity in July is 78%.Rainfall
In South Lyon, in July, it is raining for 14.3 days, with typically 1.34" (34mm) of accumulated precipitation. In South Lyon, during the entire year, the rain falls for 121.2 days and collects up to 11.77" (299mm) of precipitation.Snowfall
In South Lyon, snow does not fall in June through September.Daylight
In South Lyon, the average length of the day in July is 14h and 56min.On the first day of July, sunrise is at 6:01 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:55 pm EDT.
Sunshine
With an average of 10.3h of sunshine, July has the most sunshine of the year in South Lyon, Michigan.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index in South Lyon. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In July, the UV index of 6 transforms into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
South Lyon, MI
- Average high temperature in July: 79.7°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 (28°F).
- Average low temperature in July: 62.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in July
South Lyon, MI
- Average pressure in July: 29.96"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
South Lyon, MI
- Average wind speed in July: 6.5mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in July
South Lyon, MI
- Average humidity in July: 78%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in July
South Lyon, MI
- Average rainfall in July: 1.34"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in July
South Lyon, MI
- Average rainfall days in July: 14.3 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in July
South Lyon, MI
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
South Lyon, MI
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
South Lyon, MI
- Average daylight in July: 14h and 54min
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 6min).
- Average sunshine in July: 10h and 18min
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 48min).
Average sunshine days in July
South Lyon, MI
- Average sunshine days in July: 12.9 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in July
South Lyon, MI
- Average UV index in July: 6
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 July
South Lyon, MI
- Average cloud cover in July: 30
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in July
South Lyon, MI
- Average visibility in July: 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).





