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's arrival subtly correlates with a reduction in the average high-temperature, down from a moderately hot 78.4°F (25.8°C) in August to a pleasant 72.5°F (22.5°C). An average nighttime temperature of 57.2°F (14°C) is witnessed throughout September.Humidity
In Gates Mills, the average relative humidity in September is 78%.Rainfall
In Gates Mills, in September, during 14.5 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, there are 149.3 rainfall days, and 25.87" (657mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:08 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Gates Mills have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Gates Mills have in September?
How high is the UV index in September?
Average temperature in September
Gates Mills, OH
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Gates Mills, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Gates Mills, OH
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in September
Gates Mills, OH
- Average humidity in September: 78%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in September
Gates Mills, OH
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is November (1.69").
Average rainfall days in September
Gates Mills, OH
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Gates Mills, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gates Mills, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gates Mills, OH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
Gates Mills, OH
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is November (14.6 days).
The month with the least sunshine days is February (11.5 days).
Average UV index in September
Gates Mills, OH
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Gates Mills, OH
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Gates Mills, OH
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Gates Mills, Ohio, USA
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