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 correlates with a minor temperature reduction, down from August's warm 79.2°F (26.2°C) to a pleasant 72.7°F (22.6°C). In Commodore, an average low-temperature of 52.9°F (11.6°C) is recorded during September nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Commodore, in September, it is raining for 15.2 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 183.5 rainfall days, and 33.46" (850mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September, sunrise is at 6:43 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:59 pm EDT.
Sunshine
In Commodore, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
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 Commodore have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Commodore have in September?
How high is the UV index in September in Commodore?
Average temperature in September
Commodore, PA
- Average high temperature in September: 72.7°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 (31.3°F).
- Average low temperature in September: 52.9°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 (19°F).
Average pressure in September
Commodore, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Commodore, PA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Commodore, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall in September
Commodore, PA
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in September
Commodore, PA
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Commodore, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Commodore, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Commodore, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Commodore, PA
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (13.3 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in September
Commodore, 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
Commodore, PA
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Commodore, PA
- 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).
Commodore, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location