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
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a warm 82.4°F (28°C) to a still moderately hot 76.5°F (24.7°C). September nights observe an average temperature dip to a fresh 55°F (12.8°C).Humidity
In Graysville, the average relative humidity in September is 79%.Rainfall
In Graysville, in September, during 14.9 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Graysville, there are 184.1 rainfall days, and 33.58" (853mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:53 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:08 pm EDT.
Sunshine
In Graysville, the average sunshine in September is 8.3h.UV index
In Graysville, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 during September leads to these advisories:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Graysville?
What is the average humidity in September in Graysville?
How many days does it rain in September in Graysville?
When it does not snow in Graysville?
How many hours of daylight does Graysville have in September?
What time are sunrise and sunset in September in Graysville?
How many hours of sunshine does Graysville have in September?
How high is the UV index in September in Graysville?
Average temperature in September
Graysville, OH
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Graysville, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Graysville, OH
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Graysville, OH
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Graysville, OH
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in September
Graysville, OH
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in September
Graysville, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Graysville, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Graysville, OH
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Graysville, OH
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is November (15.9 days).
The month with the least sunshine days is January (7.7 days).
Average UV index in September
Graysville, OH
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Graysville, OH
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Graysville, OH
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Graysville, Ohio, USA
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