July weather forecastPort Huron, MI
July
Weather in July
July sees Port Huron at the pinnacle of summer, with temperatures spiking to a sweltering 78.4°F (25.8°C). It is the hottest period of the year, characterized by long, sunny days. Even though the heat is intense, the city's proximity to Lake Huron mitigates the harshness of summer, offering respite with cooling lake breezes. As the city moves into August, temperatures start to gradually decline while maintaining the typical summer climate.Temperature
With average high and low temperatures of 78.4°F (25.8°C) and 61.3°F (16.3°C) respectively, July is Port Huron's warmest month.Humidity
In July, the average relative humidity is 79%.Rainfall
In July, in Port Huron, the rain falls for 14.9 days. Throughout July, 2.09" (53mm) of precipitation is accumulated. In Port Huron, during the entire year, the rain falls for 140.4 days and collects up to 19.41" (493mm) of precipitation.Snowfall
In Port Huron, snow does not fall in June through September.Ocean temperature
In Port Huron, the average seawater temperature in July is 72.1°F (22.3°C).Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 72.1°F (22.3°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)
Daylight
The average length of the day in July is 14h and 59min.On the first day of the month, sunrise is at 5:54 am and sunset at 9:12 pm. On the last day of July, sunrise is at 6:20 am and sunset at 8:51 pm EDT.
Sunshine
With an average of 10.3h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 6 during July translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Port Huron, MI
- Average high temperature in July: 78.4°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in July: 61.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in July
Port Huron, MI
- Average pressure in July: 29.96"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 July
Port Huron, MI
- Average wind speed in July: 6.8mph
The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in July
Port Huron, MI
- Average humidity in July: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in July
Port Huron, MI
- Average rainfall in July: 2.09"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in July
Port Huron, MI
- Average rainfall days in July: 14.9 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in July
Port Huron, MI
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Port Huron, MI
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in July
Port Huron, MI
- Average sea temperature in July: 72.1°F
The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (32.4°F).
Average daylight in July /
Average sunshine in July
Port Huron, MI
- Average daylight in July: 15h and 0min
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 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 54min).
Average sunshine days in July
Port Huron, MI
- Average sunshine days in July: 13.9 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in July
Port Huron, 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
Port Huron, 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
Port Huron, MI
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
