Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Alger observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 77°F (25°C) to an agreeable 70.3°F (21.3°C). In September, the average low-temperature records at a cool 51.6°F (10.9°C) during the nights.Humidity
In Alger, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.3 days and typically collects 1.06" (27mm) of precipitation.Snowfall
June through September are months without snowfall in Alger.Daylight
In September, the average length of the day is 12h and 30min.On the first day of the month, sunrise is at 7:00 am and sunset at 8:12 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:18 pm EDT.
Sunshine
In Alger, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 3 during September leads to these instructions:
Take precautions - Protection against sunburn is recommended. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What is the average September temperature in Alger?
What is the average humidity in September in Alger?
What is the driest month in Alger?
How many days does it rain in September in Alger?
When it does not snow in Alger?
Does it snow in Alger in September?
How many hours of daylight does Alger have in September?
When are sunrise and sunset in September in Alger?
How many hours of sunshine does Alger have in September?
How high is the UV index in September in Alger?
Average temperature in September
Alger, MI
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in September
Alger, MI
- Average pressure in September: 30.02"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
Alger, MI
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in September
Alger, MI
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (73%).
Average rainfall in September
Alger, MI
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in September
Alger, MI
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is October (15.4 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Alger, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Alger, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alger, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in September
Alger, MI
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in September
Alger, MI
- Average UV index in September: 3
The months with the highest UV index are June, 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
Alger, MI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Alger, MI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, March, September and December (5mi).
Alger, Michigan, USA
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