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
A modest decline in the average high-temperature is seen during September, decreasing from a moderately hot 82°F (27.8°C) in August to a still warm 76.1°F (24.5°C). In West Finley, the average temperature during the nights of September marks a significant drop from the daily high, settling at a cool 54.5°F (12.5°C).Humidity
In West Finley, the average relative humidity in September is 79%.Rainfall
In West Finley, Pennsylvania, in September, it is raining for 14.5 days, with typically 2.48" (63mm) of accumulated precipitation. In West Finley, Pennsylvania, during the entire year, the rain falls for 184.2 days and collects up to 35.75" (908mm) of precipitation.Snowfall
June through September are months without snowfall in West Finley, Pennsylvania.Daylight
The average length of the day in September in West Finley is 12h and 26min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:52 pm. On the last day of September, in West Finley, sunrise is at 7:17 am and sunset at 7:05 pm EDT.
Sunshine
In West Finley, Pennsylvania, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September in West Finley is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the average September temperature in West Finley?
What is the average humidity in September in West Finley?
How much does it rain in West Finley in September?
When it does not snow in West Finley?
Does it snow in West Finley in September?
How many hours of daylight does West Finley have in September?
When is the sunrise / sunset in September in West Finley?
How many hours of sunshine does West Finley have in September?
How high is the UV index in September in West Finley?
Average temperature in September
West Finley, PA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
West Finley, PA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
West Finley, PA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
West Finley, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
West Finley, PA
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in September
West Finley, PA
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is January (10.7 days).
Average snowfall in September
West Finley, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Finley, 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
West Finley, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
West Finley, PA
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is January (7.5 days).
Average UV index in September
West Finley, PA
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
West Finley, PA
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
West Finley, 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).
West Finley, Pennsylvania, USA
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