September weather forecastOrchard Hills, PA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Orchard Hills, Pennsylvania, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 74.7°F (23.7°C).Temperature
The onset of September is marked by a minor decrease in temperature, transitioning from 81°F (27.2°C) in August to a still warm 74.7°F (23.7°C). During September, Orchard Hills observes a consistent average nighttime temperature of 54.3°F (12.4°C).Humidity
The average relative humidity in September is 79%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 147.1 rainfall days, and 18.54" (471mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Orchard Hills, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:01 pm EDT.
Sunshine
In Orchard Hills, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Take precautions - Protection against sun damage is advised. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Orchard Hills, PA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Orchard Hills, 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
Orchard Hills, PA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Orchard Hills, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Orchard Hills, PA
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in September
Orchard Hills, PA
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (17.6 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall in September
Orchard Hills, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Orchard Hills, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Orchard Hills, 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 30min
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
Orchard Hills, PA
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is May (10 days).
Average UV index in September
Orchard Hills, 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
Orchard Hills, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Orchard Hills, PA
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
