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
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 76.3°F (24.6°C) in August to a pleasant 69.8°F (21°C). Decker encounters an average low-temperature of 53.1°F (11.7°C) during September nights.Humidity
In September, the average relative humidity is 81%.Rainfall
In Decker, in September, it is raining for 12.7 days, with typically 1.3" (33mm) of accumulated precipitation. In Decker, during the entire year, the rain falls for 140.3 days and collects up to 21.42" (544mm) of precipitation.Snowfall
June through September are months without snowfall in Decker.Daylight
In Decker, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:56 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine in Decker is 7.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What is the average September temperature in Decker?
What is the average humidity in September in Decker?
How many days does it rain in September in Decker?
When it does not snow in Decker?
Does it snow in Decker in September?
How many hours of daylight does Decker have in September?
When is the sunrise / sunset in September in Decker?
How long on average sun shines in September in Decker?
How high is the UV index in September in Decker?
Average temperature in September
Decker, MI
- Average high temperature in September: 69.8°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in September
Decker, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Decker, MI
- Average wind speed in September: 7.5mph
The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Decker, MI
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Decker, MI
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in September
Decker, MI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Decker, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Decker, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Decker, 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: 9h and 0min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Decker, MI
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Decker, MI
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Decker, MI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Decker, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Decker, Michigan, USA
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