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
September's arrival subtly correlates with a reduction in the average high-temperature, down from 81.9°F (27.7°C) in August to a still moderately hot 75.4°F (24.1°C). Charleroi experiences an average nighttime temperature of 55°F (12.8°C) in the month of September.Humidity
In Charleroi, the average relative humidity in September is 78%.Rainfall
In Charleroi, in September, it is raining for 14.3 days, with typically 2.4" (61mm) of accumulated precipitation. Throughout the year, there are 191.3 rainfall days, and 35.24" (895mm) of precipitation is accumulated.Snowfall
In Charleroi, snow does not fall in June through September.Daylight
In Charleroi, the average length of the day in September is 12h and 26min.On the first day of September in Charleroi, sunrise is at 6:47 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:03 pm EDT.
Sunshine
In Charleroi, Pennsylvania, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What is the average September temperature in Charleroi?
What is the average humidity in September in Charleroi?
How many days does it rain in September in Charleroi?
When it does not snow in Charleroi?
Does it snow in Charleroi in September?
How many hours of daylight does Charleroi have in September?
What time are sunrise and sunset in September in Charleroi?
How many hours of sunshine does Charleroi have in September?
What is the UV index reading in September in Charleroi?
Average temperature in September
Charleroi, PA
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Charleroi, PA
- 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
Charleroi, PA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Charleroi, PA
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Charleroi, PA
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Charleroi, PA
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is May (21.8 days).
The months with the least rainy days are January and February (11.7 days).
Average snowfall in September
Charleroi, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Charleroi, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Charleroi, PA
- Average daylight in September: 12h and 2min
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 24min).
- Average sunshine in September: 8h and 4min
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 0min).
Average sunshine days in September
Charleroi, PA
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in September
Charleroi, PA
- Average UV index in September: 4
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Charleroi, PA
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Charleroi, PA
- Average visibility in September: 5mi
The months with the highest visibility are April, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
Charleroi, Pennsylvania, USA
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