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 commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 78.3°F (25.7°C) in August to an agreeable 71.4°F (21.9°C). September nights in Fern Brook cool down to an average low-temperature of 51.8°F (11°C).Humidity
The average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.73" (44mm) of precipitation.Snowfall
June through September are months without snowfall in Fern Brook.Daylight
In Fern Brook, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:36 pm. On the last day of September, in Fern Brook, sunrise is at 7:00 am and sunset at 6:46 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
The average daily maximum UV index in September in Fern Brook is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 3 in September translates into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Fern Brook?
What is the average humidity in September in Fern Brook?
What is the driest month in Fern Brook?
How many days does it rain in September in Fern Brook?
When it does not snow in Fern Brook?
Does it snow in Fern Brook in September?
What is the average length of the day in September in Fern Brook?
What time are sunrise and sunset in September in Fern Brook?
How long on average sun shines in September in Fern Brook?
What is the UV index reading in September in Fern Brook?
Average temperature in September
Fern Brook, PA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 51.8°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 (18.3°F).
Average pressure in September
Fern 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
Fern Brook, PA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Fern Brook, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in September
Fern Brook, PA
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Fern Brook, PA
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Fern Brook, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Fern Brook, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fern Brook, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Fern Brook, PA
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in September
Fern 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 month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Fern Brook, PA
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Fern Brook, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Fern Brook, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location