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 witnesses a gentle descent in average high-temperature, descending from August's moderately hot 79.3°F (26.3°C) to a still warm 73.4°F (23°C). An average low-temperature of 53.4°F (11.9°C) is anticipated throughout the nights in Confluence during September.Humidity
The average relative humidity in September is 79%.Rainfall
In Confluence, during September, the rain falls for 13.8 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 162.5 rainfall days, and 24.76" (629mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Confluence, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:00 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. 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 is the average September temperature?
What is the average humidity in September in Confluence?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Confluence have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Confluence have in September?
What is the UV index reading in September?
Average temperature in September
Confluence, PA
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Confluence, PA
- Average pressure in September: 30.06"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
Confluence, PA
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Confluence, PA
- 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 June, July and August (78%).
Average rainfall in September
Confluence, PA
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is November (1.34").
Average rainfall days in September
Confluence, PA
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in September
Confluence, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Confluence, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Confluence, PA
- 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 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Confluence, PA
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in September
Confluence, PA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Confluence, PA
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Confluence, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Confluence, Pennsylvania, USA
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