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 beginning of September brings a minor change in the average high-temperature, shifting from a warm 77°F (25°C) in August to a pleasant 70.3°F (21.3°C). September generally records an average low-temperature of 50.2°F (10.1°C).Humidity
The average relative humidity in September is 81%.Rainfall
In September, the rain falls for 13.4 days. Throughout September, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 156.3 rainfall days, and 29.25" (743mm) of precipitation is accumulated.Snowfall
In Fall Brook, snow does not fall in June through September.Daylight
In Fall Brook, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:50 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the UV index of 3 transforms into the following advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September in Fall Brook?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Fall Brook, PA
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in September: 50.2°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in September
Fall Brook, PA
- Average pressure in September: 30.07"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
Fall Brook, PA
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Fall Brook, PA
- Average humidity in September: 81%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Fall Brook, PA
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in September
Fall Brook, PA
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Fall Brook, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Fall Brook, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fall Brook, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Fall Brook, PA
- Average sunshine days in September: 14 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Fall Brook, PA
- Average UV index in September: 3
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 and December (UV index 1).
Average cloud cover in September
Fall Brook, PA
- Average cloud cover in September: 43
The months with the most cloud cover are January and December (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Fall Brook, 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).
Fall Brook, Pennsylvania, USA
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