September weather forecastDuquesne Heights, PA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Duquesne Heights, Pennsylvania, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 75.7°F (24.3°C).Temperature
With the commencement of September, Duquesne Heights records a moderate temperature decline, with the average high easing from August's 82.2°F (27.9°C) to a still moderately hot 75.7°F (24.3°C). The low-temperature average for Duquesne Heights during September stands at a refreshing 55.9°F (13.3°C).Humidity
In Duquesne Heights, Pennsylvania, the average relative humidity in September 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. In Duquesne Heights, during the entire year, the rain falls for 163.6 days and collects up to 26.93" (684mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Duquesne Heights, the average length of the day in September is 12h and 27min.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.
Sunshine
In Duquesne Heights, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Duquesne Heights 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: In September, a regular UV index of 4 translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in September /
Average sunshine in September
Duquesne Heights, PA
- Average daylight in September: 12h and 24min
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 12min
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).
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).
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).
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).
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).
