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 81.1°F (27.3°C) to a still moderately hot 74.8°F (23.8°C). In September, the average low-temperature is a cool 54.7°F (12.6°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Petersburg, in September, it is raining for 15.3 days, with typically 2.28" (58mm) of accumulated precipitation. In Petersburg, during the entire year, the rain falls for 178 days and collects up to 32.95" (837mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:05 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Petersburg, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Petersburg in September?
What is the average humidity in September?
How much does it rain in Petersburg in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Petersburg have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Petersburg, OH
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Petersburg, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Petersburg, OH
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Petersburg, OH
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Petersburg, OH
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in September
Petersburg, OH
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Petersburg, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Petersburg, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Petersburg, 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 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Petersburg, OH
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is November (13.8 days).
The month with the least sunshine days is February (7.5 days).
Average UV index in September
Petersburg, 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
Petersburg, OH
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Petersburg, 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).
Petersburg, Ohio, USA
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