September weather forecast
Porter, West VA

Weather in September

September, the first month of the autumn in Porter, is still a warm month, with an average temperature ranging between min 56.7°F (13.7°C) and max 77.9°F (25.5°C).

Temperature

In September, the average high-temperature marginally drops from a warm 84.6°F (29.2°C) in August to a still moderately hot 77.9°F (25.5°C). In Porter, in September, the average low-temperature is 56.7°F (13.7°C).

Humidity

In Porter, the average relative humidity in September is 77%.

Rainfall

September is the month with the least rainfall in Porter. Rain falls for 13.9 days and accumulates 1.81" (46mm) of precipitation.

Snowfall

In Porter, snow does not fall in June through September.

Daylight

In September, the average length of the day in Porter is 12h and 25min.
On the first day of the month, sunrise is at 6:54 am and sunset at 7:55 pm. On the last day of September, in Porter, sunrise is at 7:20 am and sunset at 7:09 pm EDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Porter?

In Porter, in September, the average high-temperature is 77.9°F (25.5°C), and the average low-temperature is 56.7°F (13.7°C). in August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is appraised at 93.2°F (34°C).

What is the average humidity in September in Porter?

In September, the average relative humidity in Porter is 77%.

What is the driest month in Porter?

September is the month with the least rainfall in Porter, West Virginia. Rain falls for 13.9 days and accumulates 1.81" (46mm) of precipitation.

How many days does it rain in September in Porter?

In Porter, West Virginia, in September, it is raining for 13.9 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow in Porter?

In Porter, snow does not fall in June through September.

Does it snow in Porter in September?

In Porter, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Porter?

The average day length in September is 12h and 25min.

What time are sunrise and sunset in September in Porter?

In September, on the first day of the month, sunrise is at 6:54 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:09 pm EDT.

How long on average sun shines in September in Porter?

In September, the average sunshine duration in Porter is 8.3h.

What is the UV index intensity in September in Porter?

The average daily maximum UV index in September in Porter is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Porter, West VA

Average temperature in September - Porter, West VA
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure in September
Porter, West VA

Average pressure in September - Porter, West VA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Porter, West VA

Average wind speed in September - Porter, West VA
  • Average wind speed in September: 4.3mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in September
Porter, West VA

Average humidity in September - Porter, West VA
  • Average humidity in September: 77%

The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).

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Average rainfall in September
Porter, West VA

Average rainfall in September - Porter, West VA
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in September
Porter, West VA

Average rainfall days in September - Porter, West VA
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is November (11 days).

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Average snowfall in September
Porter, West VA

Average snowfall in September - Porter, West VA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (5.51").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Porter, West VA

Average snowfall days in September - Porter, West VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Porter, West VA

Average daylight in September / Average sunshine in September - Porter, West VA
  • Average daylight in September: 12h and 25min

The month with the longest days is June (Average daylight: 14h and 49min).
The month with the shortest days is December (Average daylight: 9h and 32min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Porter, West VA

Average sunshine days in September - Porter, West VA
  • Average sunshine days in September: 13.5 days

The months with the most sunshine days are October and November (16.5 days).
The month with the least sunshine days is February (8.4 days).

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Average UV index in September
Porter, West VA

Average UV index in September - Porter, West VA
  • 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 and December (UV index 2).

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Average cloud cover in September
Porter, West VA

Average cloud cover in September - Porter, West VA
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in September
Porter, West VA

Average visibility in September - Porter, West VA
  • Average visibility in September: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

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