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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's 80.8°F (27.1°C) to a still moderately hot 74.5°F (23.6°C). Greensburg, during the month of September, experiences an average low-temperature of 54.3°F (12.4°C).Humidity
In Greensburg, the average relative humidity in September is 78%.Rainfall
In Greensburg, in September, it is raining for 14.6 days, with typically 2.2" (56mm) of accumulated precipitation. In Greensburg, during the entire year, the rain falls for 186 days and collects up to 34.84" (885mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Greensburg, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:46 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:01 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Take precautions - Protection against sun damage is advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Greensburg in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Greensburg have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Greensburg, PA
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Greensburg, PA
- Average pressure in September: 30.06"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
Greensburg, PA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Greensburg, PA
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Greensburg, PA
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in September
Greensburg, PA
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in September
Greensburg, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Greensburg, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Greensburg, 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 24min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Greensburg, PA
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.4 days).
Average UV index in September
Greensburg, PA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Greensburg, PA
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Greensburg, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Greensburg, Pennsylvania, USA
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