September weather forecastNorthport, MI
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Northport, Michigan, with an average temperature varying between 64.9°F (18.3°C) and 56.7°F (13.7°C).Temperature
In September, Northport notes an average high-temperature of an enjoyable 64.9°F (18.3°C), hardly different from the preceding month. In Northport, the month of September records an average minimum temperature of 56.7°F (13.7°C), a slight dip from the daily highs.Humidity
September through November, with an average relative humidity of 77%, are the least humid months.Rainfall
In Northport, in September, it is raining for 11 days, with typically 1.14" (29mm) of accumulated precipitation. In Northport, during the entire year, the rain falls for 110.5 days and collects up to 14.8" (376mm) of precipitation.Snowfall
In Northport, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 7:05 am and sunset at 8:19 pm. On the last day of September, sunrise is at 7:40 am and sunset at 7:24 pm EDT.
Sunshine
In Northport, the average sunshine in September is 8h.UV index
In Northport, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Northport, MI
- Average high temperature in September: 64.9°F
The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is August (62.6°F).
The coldest month (with the lowest average low temperature) is February (19.9°F).
Average pressure in September
Northport, 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 (29.92"Hg).
Average wind speed in September
Northport, MI
- Average wind speed in September: 11.1mph
The windiest month (with the highest average wind speed) is November (15.1mph).
The calmest month (with the lowest average wind speed) is June (8.7mph).
Average humidity in September
Northport, MI
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are September, October and November (77%).
Average rainfall in September
Northport, MI
- Average rainfall in September: 1.14"
The wettest months (with the highest rainfall) are May, June and October (1.61").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Northport, MI
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is October (15 days).
The month with the least rainy days is February (3 days).
Average snowfall in September
Northport, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Northport, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Northport, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Northport, MI
- Average sunshine days in September: 17.4 days
The months with the most sunshine days are June and July (17.6 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in September
Northport, 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
Northport, MI
- Average cloud cover in September: 33
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
Northport, MI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).





