September weather forecastFox Chapel, PA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Fox Chapel, Pennsylvania, with an average temperature fluctuating between 75.6°F (24.2°C) and 55.6°F (13.1°C).Temperature
A subtle shift in Fox Chapel's weather is observed as August turns into September, with the average high temperature reducing from 81.9°F (27.7°C) to a still moderately hot 75.6°F (24.2°C). An average nighttime temperature of 55.6°F (13.1°C) is witnessed throughout September.Humidity
In September, the average relative humidity is 77%.Rainfall
In September, the rain falls for 14.3 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. In Fox Chapel, during the entire year, the rain falls for 182.2 days and collects up to 34.84" (885mm) of precipitation.Snowfall
June through September are months without snowfall in Fox Chapel, Pennsylvania.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:51 pm. On the last day of September, in Fox Chapel, sunrise is at 7:15 am and sunset at 7:02 pm EDT.
Sunshine
In Fox Chapel, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fox Chapel, PA
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Fox Chapel, PA
- Average pressure in September: 30.05"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
Fox Chapel, PA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Fox Chapel, PA
- Average humidity in September: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in September
Fox Chapel, PA
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in September
Fox Chapel, PA
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is May (21 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in September
Fox Chapel, 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
Fox Chapel, 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
Fox Chapel, PA
- Average daylight in September: 12h and 24min
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 24min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Fox Chapel, PA
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in September
Fox Chapel, PA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Fox Chapel, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Fox Chapel, PA
- Average visibility in September: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
