September weather forecastTopaz, MI
September
Weather in September
September, the first month of the autumn in Topaz, is still a refreshing month, with an average temperature ranging between max 63°F (17.2°C) and min 52.5°F (11.4°C).Temperature
September's arrival subtly correlates with a reduction in the average high-temperature, down from a pleasant 68.5°F (20.3°C) in August to a comfortable 63°F (17.2°C). In Topaz, the nighttime temperature averages to a cool 52.5°F (11.4°C) during September.Humidity
In September, the average relative humidity is 79%.Rainfall
In Topaz, in September, it is raining for 13.3 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 113.5 rainfall days, and 18.86" (479mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Topaz, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 7:18 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 7:39 pm EDT.
Sunshine
In Topaz, the average sunshine in September is 7.7h.UV index
In Topaz, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Topaz, MI
- Average high temperature in September: 63°F
The warmest month (with the highest average high temperature) is August (68.5°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in September: 52.5°F
The month with the highest average low temperature is August (58.6°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in September
Topaz, MI
- Average pressure in September: 30"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
Topaz, MI
- Average wind speed in September: 10.2mph
The windiest month (with the highest average wind speed) is January (13.2mph).
The calmest month (with the lowest average wind speed) is June (7.8mph).
Average humidity in September
Topaz, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Topaz, MI
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in September
Topaz, MI
- Average rainfall days in September: 13.3 days
The months with the highest number of rainy days are May and June (14 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in September
Topaz, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Topaz, MI
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (22.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Topaz, MI
- Average daylight in September: 12h and 30min
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 36min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).
Average sunshine days in September
Topaz, MI
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is January (5.6 days).
Average UV index in September
Topaz, MI
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Topaz, MI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 84).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in September
Topaz, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
