Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Harvey's progression into September involves a minor drop in the average high-temperature, slightly receding from an agreeable 72.1°F (22.3°C) in August to a refreshing 65.3°F (18.5°C). During the nights in September, Harvey observes an average low-temperature of 50°F (10°C).Humidity
In Harvey, the average relative humidity in September is 79%.Rainfall
In Harvey, during September, the rain falls for 13.6 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 117.1 rainfall days, and 23.35" (593mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Harvey.Ocean temperature
In September, the average ocean temperature is 62.2°F (16.8°C).Note: Most people do not find pleasure in swimming when the water temperature is 62.2°F (16.8°C). Breathing becomes increasingly difficult to manage as the water temperature drops from 69.8°F (21°C) to 59°F (15°C).
Daylight
In September, the average length of the day in Harvey is 12h and 32min.On the first day of September, sunrise is at 7:10 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 7:30 pm EDT.
Sunshine
In September, the average sunshine is 7.2h.UV index
The average daily maximum UV index in September in Harvey is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What are September temperatures in Harvey?
What is the average humidity in September in Harvey?
How many days does it rain in September in Harvey?
When it does not snow in Harvey?
Does it snow in Harvey in September?
How cold is the water in September in Harvey?
What is the average length of the day in September in Harvey?
When are sunrise and sunset in September in Harvey?
How long on average sun shines in September in Harvey?
What is the UV index intensity in September in Harvey?
Average temperature in September
Harvey, MI
- Average high temperature in September: 65.3°F
The warmest month (with the highest average high temperature) is July (73.2°F).
The month with the lowest average high temperature is January (21.4°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is August (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in September
Harvey, MI
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Harvey, MI
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7.5mph).
Average humidity in September
Harvey, MI
- Average humidity in September: 79%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Harvey, MI
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in September
Harvey, MI
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Harvey, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (9.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Harvey, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Harvey, MI
- Average sea temperature in September: 62.1°F
The best month for swimming (with the highest average sea temperature) is August (64.3°F).
The coldest months (with the lowest average sea temperature) are February and March (33.7°F).
Average daylight in September /
Average sunshine in September
Harvey, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in September
Harvey, MI
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is July (15.8 days).
The month with the least sunshine days is January (7.3 days).
Average UV index in September
Harvey, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Harvey, MI
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Harvey, MI
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (4mi).
Harvey, Michigan, USA
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