September weather forecastVulcan, MI
September
Weather in September
September, the first month of the autumn in Vulcan, is still a refreshing month, with an average temperature fluctuating between 67.6°F (19.8°C) and 48.6°F (9.2°C).Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a warm 75.7°F (24.3°C) in August to a comfortable 67.6°F (19.8°C). Vulcan's average low-temperature in September is measured at a chilly 48.6°F (9.2°C).Humidity
In Vulcan, Michigan, the average relative humidity in September is 81%.Rainfall
In Vulcan, in September, it is raining for 11.5 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 137.4 rainfall days, and 22.83" (580mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Vulcan.Daylight
In Vulcan, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:13 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:32 pm CDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
In Vulcan, Michigan, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vulcan, MI
- Average high temperature in September: 67.6°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 (21°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure in September
Vulcan, MI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Vulcan, MI
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Vulcan, MI
- Average humidity in September: 81%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Vulcan, MI
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is June (2.6").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Vulcan, MI
- Average rainfall days in September: 11.5 days
The months with the highest number of rainy days are May, June and July (15.3 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Vulcan, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (9.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Vulcan, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Vulcan, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Vulcan, MI
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in September
Vulcan, 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
Vulcan, MI
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Vulcan, MI
- Average visibility in September: 5mi
The months with the highest visibility are May, June, October and November (6mi).
The month with the lowest visibility is February (4mi).
