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
Saint Petersburg experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a warm 79.5°F (26.4°C) in August to an agreeable 73.2°F (22.9°C). An average low-temperature of 53.1°F (11.7°C) marks the nights throughout September.Humidity
In Saint Petersburg, the average relative humidity in September is 80%.Rainfall
In Saint Petersburg, during September, the rain falls for 15.8 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 176.8 rainfall days, and 34.57" (878mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Saint Petersburg, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:45 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:01 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In Saint Petersburg, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Saint Petersburg have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Saint Petersburg have in September?
What is the UV index reading in September?
Average temperature in September
Saint Petersburg, PA
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in September
Saint Petersburg, PA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Saint Petersburg, PA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Saint Petersburg, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Saint Petersburg, PA
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in September
Saint Petersburg, PA
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in September
Saint Petersburg, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint Petersburg, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Petersburg, PA
- 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 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
Saint Petersburg, PA
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is November (14 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in September
Saint Petersburg, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Saint Petersburg, PA
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Saint Petersburg, PA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Saint Petersburg, Pennsylvania, USA
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