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
In Porters Sideling, the average high-temperature in September gently drops from a moderately hot 81.1°F (27.3°C) in August to a still warm 75°F (23.9°C). An average low-temperature of 56.8°F (13.8°C) is noted during the nights in September.Humidity
The average relative humidity in September is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 2.2" (56mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:36 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm EDT.
Sunshine
In Porters Sideling, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Porters Sideling in September?
What is the average humidity in September in Porters Sideling?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in Porters Sideling in September?
What is the average length of the day in September in Porters Sideling?
When are sunrise and sunset in September in Porters Sideling?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Porters Sideling, PA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in September
Porters Sideling, 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 (29.94"Hg).
Average wind speed in September
Porters Sideling, PA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Porters Sideling, PA
- Average humidity in September: 79%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are March, April and November (76%).
Average rainfall in September
Porters Sideling, PA
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in September
Porters Sideling, PA
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Porters Sideling, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Porters Sideling, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Porters Sideling, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Porters Sideling, PA
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in September
Porters Sideling, PA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Porters Sideling, PA
- Average cloud cover in September: 37
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Porters Sideling, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Porters Sideling, Pennsylvania, USA
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