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 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
September's arrival subtly correlates with a reduction in the average high-temperature, down from a warm 76.3°F (24.6°C) in August to a pleasant 69.8°F (21°C). Brown City experiences a mean temperature of 53.1°F (11.7°C) during September nights.Humidity
In September, the average relative humidity is 81%.Rainfall
In September, the rain falls for 12.7 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Brown City, there are 140.3 rainfall days, and 21.42" (544mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:57 am and sunset at 8:06 pm. On the last day of September, in Brown City, sunrise is at 7:29 am and sunset at 7:14 pm EDT.
Sunshine
The average sunshine in September is 7.9h.UV index
The average daily maximum UV index in September in Brown City, Michigan, is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Brown City?
What is the average humidity in September in Brown City?
How many days does it rain in September in Brown City?
When it does not snow in Brown City?
Does it snow in Brown City in September?
How many hours of daylight does Brown City have in September?
When is the sunrise / sunset in September in Brown City?
How long on average sun shines in September in Brown City?
How high is the UV index in September in Brown City?
Average temperature in September
Brown City, MI
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in September
Brown City, MI
- Average pressure in September: 30.03"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 September
Brown City, MI
- Average wind speed in September: 7.5mph
The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Brown City, MI
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Brown City, MI
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in September
Brown City, MI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Brown City, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Brown City, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brown City, MI
- Average daylight in September: 12h and 3min
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 0min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Brown City, MI
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Brown City, MI
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Brown City, MI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Brown City, MI
- Average visibility in September: 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).
Brown City, Michigan, USA
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