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
As Heise Run enters September, the average high-temperature subtly lowers from the a moderately hot 77°F (25°C) of August to a pleasant 70°F (21.1°C). During the month of September, the temperature falls to an average of 49.8°F (9.9°C).Humidity
In September, the average relative humidity is 81%.Rainfall
In Heise Run, in September, during 13.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Heise Run, during the entire year, the rain falls for 175.2 days and collects up to 30.39" (772mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:52 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In Heise Run, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Act with care - The need to guard against sun damage is communicated. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September in Heise Run?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Heise Run have in September?
How high is the UV index in September?
Average temperature in September
Heise Run, PA
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Heise Run, PA
- Average pressure in September: 30.07"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Heise Run, PA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Heise Run, PA
- Average humidity in September: 81%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (78%).
Average rainfall in September
Heise Run, PA
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in September
Heise Run, PA
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in September
Heise Run, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (9.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Heise Run, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Heise Run, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Heise Run, PA
- Average sunshine days in September: 14 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (7.4 days).
Average UV index in September
Heise Run, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Heise Run, PA
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in September
Heise Run, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Heise Run, Pennsylvania, USA
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