September weather forecastBlytheburn, PA
September
Weather in September
September, the first month of the autumn in Blytheburn, is still a pleasant month, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 71.4°F (21.9°C).Temperature
Blytheburn's weather subtly changes with the onset of September, barely falling from a warm 78.3°F (25.7°C) in August to a pleasant 71.4°F (21.9°C). Throughout September, the average low-temperature dips to a fresh 51.6°F (10.9°C).Humidity
The average relative humidity in September is 80%.Rainfall
January and September are months with the least rain when the rain falls for 13.2 days and typically aggregates up to 2.09" (53mm) of rain.Snowfall
In Blytheburn, 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 6:46 pm EDT.
Sunshine
In Blytheburn, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Blytheburn is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Blytheburn, PA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
Blytheburn, 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
Blytheburn, PA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Blytheburn, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall in September
Blytheburn, PA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and September (2.09").
Average rainfall days in September
Blytheburn, PA
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Blytheburn, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Blytheburn, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Blytheburn, PA
- Average daylight in September: 12h and 30min
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 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in September
Blytheburn, PA
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in September
Blytheburn, PA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Blytheburn, PA
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Blytheburn, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
