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
The arrival of September suggests a slight decrease in the average high-temperature, moving from a moderately hot 77.9°F (25.5°C) in August to a pleasant 71.4°F (21.9°C). During September, Stull's temperature falls to a steady low-temperature average of 51.8°F (11°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Stull, in September, during 13.8 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, in Stull, there are 166.2 rainfall days, and 30.83" (783mm) of precipitation is accumulated.Snowfall
In Stull, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:47 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 3 during September leads to these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
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 Stull have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Stull have in September?
What is the UV index intensity in September?
Average temperature in September
Stull, PA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Stull, 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
Stull, PA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Stull, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in September
Stull, PA
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in September
Stull, PA
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Stull, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stull, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stull, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in September
Stull, PA
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Stull, 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
Stull, PA
- Average cloud cover in September: 42
The months with the most cloud cover are February and December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Stull, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Stull, Pennsylvania, USA
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