September weather forecastHarbert, MI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Harbert, Michigan, with an average temperature ranging between max 72.3°F (22.4°C) and min 58.1°F (14.5°C).Temperature
With the onset of September, Harbert's average high-temperature clocks in at an agreeable 72.3°F (22.4°C), showing a minor fluctuation from the previous month. Nighttime temperature in Harbert dips to a mean of 58.1°F (14.5°C) during September.Humidity
In Harbert, the average relative humidity in September is 78%.Rainfall
In Harbert, Michigan, in September, it is raining for 12.9 days, with typically 2.4" (61mm) of accumulated precipitation. Throughout the year, in Harbert, there are 151.9 rainfall days, and 28.39" (721mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Harbert.Daylight
In Harbert, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:13 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 7:29 pm EDT.
Sunshine
The average sunshine in September in Harbert, Michigan, is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harbert, MI
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Harbert, MI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Harbert, MI
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Harbert, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Harbert, MI
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in September
Harbert, MI
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Harbert, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Harbert, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Harbert, MI
- Average daylight in September: 12h and 30min
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 18min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Harbert, MI
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is January (9.2 days).
Average UV index in September
Harbert, 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
Harbert, MI
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Harbert, MI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





