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 commencement of September indicates a gentle shift in the average high-temperature, receding from August's moderately hot 74.7°F (23.7°C) to an enjoyable 66.9°F (19.4°C). An average nighttime temperature of 48.6°F (9.2°C) is recorded in Sleepy Hollow, Michigan, during September.Humidity
In Sleepy Hollow, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 14.2 days. Throughout September, 1.69" (43mm) of precipitation is accumulated. In Sleepy Hollow, during the entire year, the rain falls for 128.5 days and collects up to 24.76" (629mm) of precipitation.Snowfall
In Sleepy Hollow, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of September in Sleepy Hollow, sunrise is at 7:18 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 7:38 pm EDT.
Sunshine
The average sunshine in September in Sleepy Hollow is 7.9h.UV index
In September, the average daily maximum UV index in Sleepy Hollow is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Adopt protective measures - It is advised to guard against sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Sleepy Hollow in September?
What is the average humidity in September in Sleepy Hollow?
How many days does it rain in September in Sleepy Hollow?
When it does not snow in Sleepy Hollow?
Does it snow in Sleepy Hollow in September?
How many hours of daylight does Sleepy Hollow have in September?
What time are sunrise and sunset in September in Sleepy Hollow?
How many hours of sunshine does Sleepy Hollow have in September?
How high is the UV index in September in Sleepy Hollow?
Average temperature in September
Sleepy Hollow, MI
- Average high temperature in September: 66.9°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (18.5°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in September
Sleepy Hollow, MI
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Sleepy Hollow, MI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is November (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Sleepy Hollow, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Sleepy Hollow, MI
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in September
Sleepy Hollow, MI
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in September
Sleepy Hollow, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sleepy Hollow, MI
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (26.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Sleepy Hollow, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in September
Sleepy Hollow, MI
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (5 days).
Average UV index in September
Sleepy Hollow, 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, March, November and December (UV index 1).
Average cloud cover in September
Sleepy Hollow, MI
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Sleepy Hollow, MI
- Average visibility in September: 5mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Sleepy Hollow, Michigan, USA
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