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
September sees a slight reduction in average high-temperature, with a shift from a moderately hot 75.4°F (24.1°C) in August to a pleasant 68.9°F (20.5°C). An average nighttime temperature of 54.9°F (12.7°C) is observed during September.Humidity
In Deckerville, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. In Deckerville, during the entire year, the rain falls for 146.5 days and collects up to 22.44" (570mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Deckerville, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:55 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:13 pm EDT.
Sunshine
The average sunshine in September in Deckerville is 8.2h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the average September temperature in Deckerville?
What is the average humidity in September in Deckerville?
How many days does it rain in September in Deckerville?
When it does not snow in Deckerville?
Does it snow in Deckerville in September?
How many hours of daylight does Deckerville have in September?
When are sunrise and sunset in September in Deckerville?
How long on average sun shines in September in Deckerville?
What is the UV index reading in September in Deckerville?
Average temperature in September
Deckerville, MI
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Deckerville, 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
Deckerville, MI
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Deckerville, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in September
Deckerville, MI
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are February and December (1.26").
Average rainfall days in September
Deckerville, MI
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is October (16.9 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in September
Deckerville, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Deckerville, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Deckerville, 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: 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: 2h and 42min).
Average sunshine days in September
Deckerville, MI
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in September
Deckerville, 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
Deckerville, MI
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Deckerville, 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).
Deckerville, Michigan, USA
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