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
Smyrna's September weather shows a modest shift in high-temperatures, falling from August's warm 77.9°F (25.5°C) to a pleasant 71.6°F (22°C). In Smyrna, September nights witness a steady temperature drop to a cool 52.5°F (11.4°C).Humidity
In Smyrna, the average relative humidity in September is 78%.Rainfall
In Smyrna, in September, it is raining for 9.7 days, with typically 1.06" (27mm) of accumulated precipitation. In Smyrna, during the entire year, the rain falls for 122.5 days and collects up to 13.19" (335mm) of precipitation.Snowfall
In Smyrna, Michigan, snow does not fall in May through September.Daylight
The average length of the day in September in Smyrna, Michigan, is 12h and 29min.On the first day of the month, sunrise is at 7:06 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:38 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Be vigilant - Preventing sunburn is recommended. The solar radiation around mid-day is intense; avoid the Sun and stay safe. 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 are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Smyrna, MI
- Average high temperature in September: 71.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in September: 52.5°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Smyrna, 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 (29.92"Hg).
Average wind speed in September
Smyrna, MI
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Smyrna, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Smyrna, MI
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is May (1.65").
The driest month (with the least rainfall) is November (0.71").
Average rainfall days in September
Smyrna, MI
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Smyrna, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Smyrna, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Smyrna, 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 6min).
- Average sunshine in September: 8h and 1min
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 30min).
Average sunshine days in September
Smyrna, MI
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is September (17.7 days).
The months with the least sunshine days are January, February and May (12.8 days).
Average UV index in September
Smyrna, 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, November and December (UV index 1).
Average cloud cover in September
Smyrna, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Smyrna, 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).
Smyrna, Michigan, USA
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