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
River Rouge, Michigan, observes a small decrease in the average high-temperature with the arrival of September, falling from August's moderately hot 78.4°F (25.8°C) to an agreeable 72°F (22.2°C). In September, River Rouge experiences a temperature dip to an average of 57.9°F (14.4°C) at night.Humidity
The average relative humidity in September is 75%.Rainfall
In September, the rain falls for 11 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in River Rouge, there are 128.5 rainfall days, and 11.89" (302mm) of precipitation is accumulated.Snowfall
In River Rouge, snow does not fall in June through October.Ocean temperature
In September, the average ocean temperature is 70.5°F (21.4°C).Note: In water with a temperature of 70.5°F (21.4°C), most individuals do not find swimming enjoyable. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), breathing control becomes more difficult.
Daylight
In River Rouge, the average length of the day in September is 12h and 28min.On the first day of September in River Rouge, sunrise is at 6:58 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:15 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In River Rouge, Michigan, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. When the Sun is at its strongest around midday, find shade and limit exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Warning! The Sun's UV rays intensify with reflections from sand and water.
Frequently asked questions
What are September temperatures in River Rouge?
What is the average humidity in September in River Rouge?
How much does it rain in River Rouge in September?
When it does not snow in River Rouge?
What is the ocean temperature in September in River Rouge?
How many hours of daylight does River Rouge have in September?
What time are sunrise and sunset in September in River Rouge?
How long on average sun shines in September in River Rouge?
What is the UV index intensity in September in River Rouge?
Average temperature in September
River Rouge, MI
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in September
River Rouge, MI
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
River Rouge, MI
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
River Rouge, MI
- Average humidity in September: 75%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
River Rouge, MI
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February and December (0.55").
Average rainfall days in September
River Rouge, MI
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
River Rouge, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
River Rouge, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
River Rouge, MI
- Average sea temperature in September: 70.6°F
The best month for swimming (with the highest average sea temperature) is August (75.4°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).
Average daylight in September /
Average sunshine in September
River Rouge, MI
- Average daylight in September: 12h and 3min
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 September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
River Rouge, MI
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in September
River Rouge, MI
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
River Rouge, MI
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
River Rouge, MI
- Average visibility in September: 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).
River Rouge, Michigan, USA
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