September weather forecastPorters Falls, WV

September

Weather in September

September, the first month of the autumn in Porters Falls, is still a warm month, with an average temperature fluctuating between 76.6°F (24.8°C) and 55.4°F (13°C).

Temperature

In September, the average high-temperature marginally decreases from 82.8°F (28.2°C) in August to a still moderately hot 76.6°F (24.8°C). Porters Falls witnesses a consistent average low-temperature of 55.4°F (13°C) throughout September.

Humidity

In September, the average relative humidity in Porters Falls is 79%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.6 days and typically collects 1.61" (41mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:52 am and sunset at 7:53 pm. On the last day of September, in Porters Falls, West Virginia, sunrise is at 7:18 am and sunset at 7:06 pm EDT.

Sunshine

In Porters Falls, the average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index in Porters Falls, West Virginia, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during September is 76.6°F (24.8°C) and the low-temperature is 55.4°F (13°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 89.6°F (32°C).

In September, the average relative humidity in Porters Falls, West Virginia, is 79%.

The month with the least rainfall in Porters Falls is September, when the rain falls for 13.6 days and typically collects 1.61" (41mm) of precipitation.

In September, the rain falls for 13.6 days. Throughout September, 1.61" (41mm) of precipitation is accumulated.

In Porters Falls, snow does not fall in May through October.

In Porters Falls, West Virginia, the average day length in September is 12h and 26min.

In September, on the first day of the month, sunrise is at 6:52 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:06 pm EDT.

The average sunshine duration in September in Porters Falls, West Virginia, is 8.4h.

In Porters Falls, West Virginia, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

82.8°F

76.6°F

63.3°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.6mph

4.9mph

6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

15.8

13.6

13.5

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

12.9

14.7

15.9

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Porters Falls, WV

Average high temperature in September: 76.6°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).

Average low temperature in September: 55.4°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

Average pressure in September
Porters Falls, WV

Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Porters Falls, WV

Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Porters Falls, WV

Average humidity in September: 79%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (77%).

Average rainfall in September
Porters Falls, WV

Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in September
Porters Falls, WV

Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (10.2 days).

Average snowfall in September
Porters Falls, WV

Average snowfall in September: 0"

The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Porters Falls, WV

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Porters Falls, WV

Average daylight in September: 12h and 24min

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 24min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).