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 start of September involves a subtle temperature drop, shifting from a moderately hot 77.9°F (25.5°C) in August to a pleasant 71.4°F (21.9°C). In September, Sweet Valley encounters an average low-temperature of 51.8°F (11°C) during the night.Humidity
In Sweet Valley, the average relative humidity in September is 80%.Rainfall
In Sweet Valley, in September, it is raining for 13.8 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 166.2 rainfall days, and 30.83" (783mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Sweet Valley.Daylight
In Sweet Valley, Pennsylvania, the average length of the day in September is 12h and 28min.On the first day of September in Sweet Valley, Pennsylvania, sunrise is at 6:31 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:47 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Sweet Valley, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are the temperatures in Sweet Valley in September?
What is the average humidity in September in Sweet Valley?
How much does it rain in Sweet Valley in September?
When it does not snow in Sweet Valley?
Does it snow in Sweet Valley in September?
How many hours of daylight does Sweet Valley have in September?
When is the sunrise / sunset in September in Sweet Valley?
How many hours of sunshine does Sweet Valley have in September?
How high is the UV index in September in Sweet Valley?
Average temperature in September
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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 18min).
- 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
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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
Sweet Valley, 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).
Sweet Valley, Pennsylvania, USA
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