Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from a warm 81.7°F (27.6°C) in August to a still moderately hot 75.4°F (24.1°C). An average low-temperature of 55°F (12.8°C) is recorded during the nights in September in East McKeesport.Humidity
In September, the average relative humidity is 77%.Rainfall
In East McKeesport, in September, it is raining for 12.2 days, with typically 1.5" (38mm) of accumulated precipitation. In East McKeesport, during the entire year, the rain falls for 151 days and collects up to 20.39" (518mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In East McKeesport, Pennsylvania, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:47 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:02 pm EDT.
Sunshine
The average sunshine in September in East McKeesport, Pennsylvania, is 8.6h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What are the temperatures in East McKeesport in September?
What is the average humidity in September in East McKeesport?
How much does it rain in East McKeesport in September?
When it does not snow in East McKeesport?
Does it snow in East McKeesport in September?
How many hours of daylight does East McKeesport have in September?
When are sunrise and sunset in September in East McKeesport?
How long on average sun shines in September in East McKeesport?
What is the UV index intensity in September in East McKeesport?
Average temperature in September
East McKeesport, 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).
Average pressure in September
East McKeesport, 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
East McKeesport, 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).
Average humidity in September
East McKeesport, 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%).
Average rainfall in September
East McKeesport, 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").
Average rainfall days in September
East McKeesport, 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).
Average snowfall in September
East McKeesport, 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").
Average snowfall days in September
East McKeesport, 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).
Average daylight in September /
Average sunshine in September
East McKeesport, 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 4min
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).
Average sunshine days in September
East McKeesport, 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).
Average UV index in September
East McKeesport, 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).
Average cloud cover in September
East McKeesport, 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).
Average visibility in September
East McKeesport, 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).
East McKeesport, Pennsylvania, USA
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