September weather forecast
Wilmerding, PA

Weather in September

September, the first month of the autumn in Wilmerding, is also a moderately hot month, with an average temperature ranging between min 55°F (12.8°C) and max 75.4°F (24.1°C).

Temperature

In Wilmerding, the average high-temperature in September marginally drops from 81.7°F (27.6°C) in August to a still warm 75.4°F (24.1°C). In Wilmerding, the average low-temperature is 55°F (12.8°C).

Humidity

The average relative humidity in September in Wilmerding is 77%.

Rainfall

In Wilmerding, in September, during 12.2 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Wilmerding, during the entire year, the rain falls for 151 days and collects up to 20.39" (518mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:03 pm EDT.

Sunshine

The average sunshine in September in Wilmerding is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
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.
[Resources]

FAQ

What is the temperature in September in Wilmerding?

In September, in Wilmerding, Pennsylvania, the average high-temperature is 75.4°F (24.1°C), and the average low-temperature is 55°F (12.8°C). in August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Wilmerding?

The average relative humidity in September is 77%.

How many days does it rain in September in Wilmerding?

In Wilmerding, during September, the rain falls for 12.2 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Wilmerding?

In Wilmerding, Pennsylvania, snow does not fall in June through September.

Does it snow in Wilmerding in September?

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

How many hours of daylight does Wilmerding have in September?

In September, the average day length in Wilmerding, Pennsylvania, is 12h and 27min.

What time are sunrise and sunset in September in Wilmerding?

On the first day of September in Wilmerding, sunrise is at 6:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:03 pm EDT.

How long on average sun shines in September in Wilmerding?

In September, the average sunshine duration in Wilmerding, Pennsylvania, is 8.6h.

What is the UV index intensity in September in Wilmerding?

In Wilmerding, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Wilmerding, PA

Average temperature in September - Wilmerding, PA
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

[Resources]

Average pressure in September
Wilmerding, PA

Average pressure in September - Wilmerding, PA
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

[Resources]

Average wind speed in September
Wilmerding, PA

Average wind speed in September - Wilmerding, PA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

[Resources]

Average humidity in September
Wilmerding, PA

Average humidity in September - Wilmerding, PA
  • Average humidity in September: 77%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).

[Resources]

Average rainfall in September
Wilmerding, PA

Average rainfall in September - Wilmerding, PA
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is November (1.06").

[Resources]

Average rainfall days in September
Wilmerding, PA

Average rainfall days in September - Wilmerding, PA
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (7.7 days).

[Resources]

Average snowfall in September
Wilmerding, PA

Average snowfall in September - Wilmerding, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in September
Wilmerding, PA

Average snowfall days in September - Wilmerding, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Wilmerding, PA

Average daylight in September / Average sunshine in September - Wilmerding, PA
  • Average daylight in September: 12h and 27min

The month with the longest days is June (Average daylight: 15h and 1min).
The month with the shortest days is December (Average daylight: 9h and 21min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

[Resources]

Average sunshine days in September
Wilmerding, PA

Average sunshine days in September - Wilmerding, PA
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (10.1 days).

[Resources]

Average UV index in September
Wilmerding, PA

Average UV index in September - Wilmerding, PA
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in September
Wilmerding, PA

Average cloud cover in September - Wilmerding, PA
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).

[Resources]

Average visibility in September
Wilmerding, PA

Average visibility in September - Wilmerding, PA
  • Average visibility in September: 5mi

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location