September weather forecastSterling Heights, MI
September
Weather in September
September brings the onset of fall to Sterling Heights, Michigan, with a noticeable drop in temperature to 72.5°F (22.5°C). The autumn equinox brings shorter days, but sunshine still dominates a significant part of the day. The rainfall begins to slightly increase, hinting at the coming wetter months. Variable light winds blow, contributing to the fall crispness. The month is characterized by clear, sunny, and pleasantly cooler days.Temperature
Sterling Heights's transition into September involves a gentle shift in temperature, receding from a moderately hot 79.2°F (26.2°C) in August to an agreeable 72.5°F (22.5°C). Sterling Heights's average low-temperature for the month of September records at a refreshing 56.1°F (13.4°C).Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 13.6 days. Throughout September, 1.69" (43mm) of precipitation is accumulated. Throughout the year, there are 149.8 rainfall days, and 23.31" (592mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:57 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sterling Heights, MI
- Average high temperature in September: 72.5°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 (28.4°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
Sterling Heights, MI
- Average pressure in September: 30.03"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
Sterling Heights, MI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Sterling Heights, MI
- Average humidity in September: 75%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in September
Sterling Heights, MI
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in September
Sterling Heights, MI
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Sterling Heights, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sterling Heights, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sterling Heights, MI
- Average daylight in September: 12h and 30min
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 12min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Sterling Heights, MI
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in September
Sterling Heights, MI
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Sterling Heights, MI
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Sterling Heights, 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).
