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 arrival of September corresponds with a light shift in temperature, down from a moderately hot 84.6°F (29.2°C) in August to a still warm 77.9°F (25.5°C). A considerable shift from the daytime highs is observed during September nights, with an average low of 56.3°F (13.5°C).Humidity
In Chesterhill, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 1.85" (47mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September in Chesterhill is 12h and 26min.On the first day of September, sunrise is at 6:56 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:11 pm EDT.
Sunshine
In Chesterhill, the average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. 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 Chesterhill?
What is the average humidity in September in Chesterhill?
What is the driest month in Chesterhill?
How many days does it rain in September in Chesterhill?
When it does not snow in Chesterhill?
What is the average length of the day in September in Chesterhill?
When is the sunrise / sunset in September in Chesterhill?
How many hours of sunshine does Chesterhill have in September?
What is the UV index intensity in September in Chesterhill?
Average temperature in September
Chesterhill, OH
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Chesterhill, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Chesterhill, OH
- Average wind speed in September: 5mph
The windiest months (with the highest average wind speed) are January and February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in September
Chesterhill, OH
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Chesterhill, OH
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Chesterhill, OH
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (10 days).
Average snowfall in September
Chesterhill, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Chesterhill, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Chesterhill, 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 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Chesterhill, OH
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in September
Chesterhill, OH
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Chesterhill, OH
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Chesterhill, OH
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Chesterhill, Ohio, USA
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