September weather forecast
Warrendale, PA

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Weather in September

September, the first month of the autumn in Warrendale, is also a moderately hot month, with an average temperature ranging between min 55.8°F (13.2°C) and max 75.2°F (24°C).

Temperature

September ushers in a minor alteration in Warrendale's climate, with the average high-temperature moving from August's 81.9°F (27.7°C) to a still warm 75.2°F (24°C). During September, the nighttime temperature averages of 55.8°F (13.2°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

In Warrendale, in September, it is raining for 7.7 days, with typically 0.51" (13mm) of accumulated precipitation. In Warrendale, Pennsylvania, during the entire year, the rain falls for 104.1 days and collects up to 8.23" (209mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Warrendale, Pennsylvania, is 12h and 27min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:52 pm. On the last day of September, in Warrendale, sunrise is at 7:16 am and sunset at 7:03 pm EDT.

Sunshine

The average sunshine in September in Warrendale is 8.3h.

UV index

The average daily maximum UV index in September in Warrendale is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What is the temperature in September in Warrendale?

The average high-temperature, in September, in Warrendale, is 75.2°F (24°C), while the average low-temperature is 55.8°F (13.2°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in August is computed to be 87.8°F (31°C).

What is the average humidity in September in Warrendale?

The average relative humidity in September in Warrendale, Pennsylvania, is 77%.

How many days does it rain in September in Warrendale?

In Warrendale, during September, the rain falls for 7.7 days and regularly aggregates up to 0.51" (13mm) of precipitation.

When it does not snow in Warrendale?

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

Does it snow in Warrendale in September?

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

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

The average day length in September is 12h and 27min.

When are sunrise and sunset in September in Warrendale?

In September, on the first day of the month, sunrise is at 6:48 am and sunset at 7:52 pm. On the last day of the month, in Warrendale, sunrise is at 7:16 am and sunset at 7:03 pm EDT.

How many hours of sunshine does Warrendale have in September?

The average sunshine duration in September in Warrendale is 8.3h.

What is the UV index reading in September in Warrendale?

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

Average temperature in September
Warrendale, PA

Average temperature in September - Warrendale, PA
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in September
Warrendale, PA

Average pressure in September - Warrendale, 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 (29.94"Hg).

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Average wind speed in September
Warrendale, PA

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

The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in September
Warrendale, PA

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

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (75%).

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Average rainfall in September
Warrendale, PA

Average rainfall in September - Warrendale, PA
  • Average rainfall in September: 0.51"

The wettest months (with the highest rainfall) are June and July (0.91").
The driest months (with the least rainfall) are January and November (0.47").

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Average rainfall days in September
Warrendale, PA

Average rainfall days in September - Warrendale, PA
  • Average rainfall days in September: 7.7 days

The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in September
Warrendale, PA

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

The month with the highest snowfall is February (1.18").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Warrendale, PA

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

The month with the highest number of snowfall days is February (9 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
Warrendale, PA

Average daylight in September / Average sunshine in September - Warrendale, 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 2min

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).

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Average sunshine days in September
Warrendale, PA

Average sunshine days in September - Warrendale, PA
  • Average sunshine days in September: 19.6 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is May (14.7 days).

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Average UV index in September
Warrendale, PA

Average UV index in September - Warrendale, 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).

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Average cloud cover in September
Warrendale, PA

Average cloud cover in September - Warrendale, PA
  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in September
Warrendale, PA

Average visibility in September - Warrendale, 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).

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Warrendale, Pennsylvania, USA

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