September weather forecast
Duquesne Heights, PA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Duquesne Heights, Pennsylvania, with an average temperature varying between 55.9°F (13.3°C) and 75.7°F (24.3°C).

Temperature

In Duquesne Heights, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's 82.2°F (27.9°C) to a still warm 75.7°F (24.3°C). Duquesne Heights observes an average nighttime temperature of 55.9°F (13.3°C) during September.

Humidity

The average relative humidity in September in Duquesne Heights is 76%.

Rainfall

In Duquesne Heights, during September, the rain falls for 12.9 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 163.6 rainfall days, and 26.93" (684mm) of precipitation is accumulated.

Snowfall

In Duquesne Heights, snow does not fall in May through September.

Daylight

In Duquesne Heights, the average length of the day in September is 12h and 27min.
On the first day of September in Duquesne Heights, sunrise is at 6:48 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:03 pm EDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In September, the average daily maximum UV index in Duquesne Heights is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Put precautions into practice - Guidance to elude sunburn is provided. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What are the temperatures in Duquesne Heights in September?

Duquesne Heights in September has an average high-temperature of 75.7°F (24.3°C) and an average low-temperature of 55.9°F (13.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in August is estimated at 87.8°F (31°C).

What is the average humidity in September in Duquesne Heights?

The average relative humidity in September is 76%.

How much does it rain in Duquesne Heights in September?

In September, the rain falls for 12.9 days. Throughout September, 2.13" (54mm) of precipitation is accumulated.

When it does not snow in Duquesne Heights?

In Duquesne Heights, snow does not fall in May through September.

Does it snow in Duquesne Heights in September?

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

What is the average length of the day in September in Duquesne Heights?

In Duquesne Heights, the average day length in September is 12h and 27min.

When is the sunrise / sunset in September in Duquesne Heights?

On the first day of September, sunrise is at 6:48 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:03 pm EDT.

How long on average sun shines in September in Duquesne Heights?

The average sunshine duration in September is 8.2h.

What is the UV index intensity in September in Duquesne Heights?

In Duquesne Heights, Pennsylvania, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
Duquesne Heights, PA

Average temperature in September - Duquesne Heights, PA
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in September: 55.9°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in September
Duquesne Heights, PA

Average pressure in September - Duquesne Heights, 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).

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Average wind speed in September
Duquesne Heights, PA

Average wind speed in September - Duquesne Heights, 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
Duquesne Heights, PA

Average humidity in September - Duquesne Heights, PA
  • Average humidity in September: 76%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (73%).

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Average rainfall in September
Duquesne Heights, PA

Average rainfall in September - Duquesne Heights, PA
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.54").

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Average rainfall days in September
Duquesne Heights, PA

Average rainfall days in September - Duquesne Heights, PA
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in September
Duquesne Heights, PA

Average snowfall in September - Duquesne Heights, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Duquesne Heights, PA

Average snowfall days in September - Duquesne Heights, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Duquesne Heights, PA

Average daylight in September / Average sunshine in September - Duquesne Heights, PA
  • Average daylight in September: 12h and 2min

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 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in September
Duquesne Heights, PA

Average sunshine days in September - Duquesne Heights, PA
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.6 days).

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Average UV index in September
Duquesne Heights, PA

Average UV index in September - Duquesne Heights, PA
  • Average UV index in September: 4

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

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Average cloud cover in September
Duquesne Heights, PA

Average cloud cover in September - Duquesne Heights, PA
  • Average cloud cover in September: 40

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
Duquesne Heights, PA

Average visibility in September - Duquesne Heights, PA
  • Average visibility in September: 5mi

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

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Duquesne Heights, Pennsylvania, USA

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