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
Transition into September subtly marks a drop in the average high-temperature, moderately moving from 81.1°F (27.3°C) in August to a still moderately hot 75°F (23.9°C). Seven Valleys's nighttime temperature in September drops to an average of 56.8°F (13.8°C).Humidity
The average relative humidity in September is 79%.Rainfall
In September, the rain falls for 9.4 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. In Seven Valleys, during the entire year, the rain falls for 124 days and collects up to 11.85" (301mm) of precipitation.Snowfall
In Seven Valleys, snow does not fall in June through October.Daylight
The average length of the day in September in Seven Valleys is 12h and 26min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:37 pm. On the last day of September, in Seven Valleys, sunrise is at 7:03 am and sunset at 6:50 pm EDT.
Sunshine
The average sunshine in September in Seven Valleys is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 4 transforms into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the average September temperature in Seven Valleys?
What is the average humidity in September in Seven Valleys?
How much does it rain in Seven Valleys in September?
When it does not snow in Seven Valleys?
How many hours of daylight does Seven Valleys have in September?
When is the sunrise / sunset in September in Seven Valleys?
How long on average sun shines in September in Seven Valleys?
What is the UV index reading in September in Seven Valleys?
Average temperature in September
Seven Valleys, PA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in September
Seven Valleys, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Seven Valleys, PA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Seven Valleys, PA
- Average humidity in September: 79%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Seven Valleys, PA
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (1.38").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Seven Valleys, PA
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Seven Valleys, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Seven Valleys, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Seven Valleys, 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 July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Seven Valleys, PA
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in September
Seven Valleys, PA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Seven Valleys, PA
- Average cloud cover in September: 37
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Seven Valleys, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Seven Valleys, Pennsylvania, USA
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