September weather forecastFarmington Hills, MI
September
Weather in September
With the arrival of September, Farmington Hills begins to cool down. The landscape mirrors the change, as autumn leaves start to color the city in shades of red, orange, and yellow. It's a transition month; the heat of summer subsides gradually, introducing the initial touch of fall. Slightly cooler than August, rain is lesser this month, amounting to only 1.06" (27mm) on average. It's a lovely period for walks in the park as the scenic beauty transitions dramatically in preparation for the forthcoming fall season.Temperature
September's onset introduces a mild reduction in the average high-temperature, from a warm 79°F (26.1°C) in August to an agreeable 72.1°F (22.3°C). Farmington Hills cools down to an average low-temperature of 55.8°F (13.2°C) throughout the month of September.Humidity
In September, the average relative humidity in Farmington Hills is 76%.Rainfall
In September, the rain falls for 11.6 days. Throughout September, 1.06" (27mm) of precipitation is accumulated. Throughout the year, in Farmington Hills, there are 122 rainfall days, and 12.48" (317mm) of precipitation is accumulated.Snowfall
In Farmington Hills, snow does not fall in June through September.Daylight
The average length of the day in September in Farmington Hills is 12h and 28min.On the first day of the month, sunrise is at 6:59 am and sunset at 8:07 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:16 pm EDT.
Sunshine
The average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Farmington Hills, MI
- Average high temperature in September: 72.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in September
Farmington Hills, MI
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Farmington Hills, MI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Farmington Hills, MI
- Average humidity in September: 76%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Farmington Hills, MI
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is May (1.61").
The driest months (with the least rainfall) are February and December (0.63").
Average rainfall days in September
Farmington Hills, MI
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
Farmington Hills, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Farmington Hills, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Farmington Hills, 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 6min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Farmington Hills, MI
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in September
Farmington Hills, MI
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Farmington Hills, MI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Farmington Hills, 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).
