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
In September, the average high-temperature marginally drops from a pleasant 72.1°F (22.3°C) in August to a comfortable 66.4°F (19.1°C). September nights are marked by an average temperature drop to a mild 55.8°F (13.2°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In September, the rain falls for 13.4 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 135.6 rainfall days, and 24.25" (616mm) of precipitation is accumulated.Snowfall
In Lake Ann, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 7:06 am and sunset at 8:19 pm. On the last day of September, in Lake Ann, sunrise is at 7:41 am and sunset at 7:25 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September in Lake Ann is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Lake Ann in September?
What is the average humidity in September in Lake Ann?
How many days does it rain in September in Lake Ann?
When it does not snow in Lake Ann?
Does it snow in Lake Ann in September?
What is the average length of the day in September in Lake Ann?
When are sunrise and sunset in September in Lake Ann?
How long on average sun shines in September in Lake Ann?
What is the UV index intensity in September in Lake Ann?
Average temperature in September
Lake Ann, MI
- Average high temperature in September: 66.4°F
The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (19.6°F).
Average pressure in September
Lake Ann, 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
Lake Ann, MI
- Average wind speed in September: 10.3mph
The windiest months (with the highest average wind speed) are January and December (13.5mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in September
Lake Ann, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
Lake Ann, MI
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is October (2.87").
The driest months (with the least rainfall) are February and March (1.54").
Average rainfall days in September
Lake Ann, MI
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is October (17 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Lake Ann, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lake Ann, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lake Ann, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
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 24min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in September
Lake Ann, MI
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is May (14.5 days).
The month with the least sunshine days is January (5.6 days).
Average UV index in September
Lake Ann, 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
Lake Ann, MI
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Lake Ann, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Lake Ann, Michigan, USA
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