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 average high-temperature slightly decreases in September, shifting from a moderately hot 80.2°F (26.8°C) in August to a still warm 73.8°F (23.2°C). During September, the nighttime temperature averages of 53.6°F (12°C).Humidity
The average relative humidity in September is 79%.Rainfall
In September, the rain falls for 12.6 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. In Port Trevorton, during the entire year, the rain falls for 165.3 days and collects up to 30.55" (776mm) of precipitation.Snowfall
June through September are months without snowfall in Port Trevorton.Daylight
The average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:35 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:50 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Port Trevorton, Pennsylvania, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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 Port Trevorton?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Port Trevorton have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Port Trevorton have in September?
What is the UV index reading in September?
Average temperature in September
Port Trevorton, PA
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Port Trevorton, PA
- Average pressure in September: 30.07"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Port Trevorton, PA
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Port Trevorton, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Port Trevorton, PA
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are February and November (2.09").
Average rainfall days in September
Port Trevorton, PA
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Port Trevorton, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.67").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Port Trevorton, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Port Trevorton, PA
- Average daylight in September: 12h and 3min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Port Trevorton, PA
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in September
Port Trevorton, PA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Port Trevorton, PA
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Port Trevorton, PA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, July and November (6mi).
The months with the lowest visibility are January, February, May, August, September, October and December (5mi).
Port Trevorton, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location