September weather forecastArchbald, PA
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Archbald, Pennsylvania, with an average temperature varying between 51.1°F (10.6°C) and 71.1°F (21.7°C).Temperature
In the transition to September, Archbald observes a minor drop in the average high-temperature, shifting from a moderately hot 78.1°F (25.6°C) in August to a pleasant 71.1°F (21.7°C). Nighttime temperatures consistently average a cool 51.1°F (10.6°C) during September.Humidity
In Archbald, the average relative humidity in September is 80%.Rainfall
The months with the least rainfall are January and September Rain falls for 11.3 days and accumulates 1.73" (44mm) of rain.Snowfall
June through September are months without snowfall.Daylight
In Archbald, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 in September translates into these instructions:
Take necessary precautions - Defending against sun damage is advocated. To guard against the harmful effects of the Sun, minimize exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Archbald, PA
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Archbald, PA
- Average pressure in September: 30.06"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
Archbald, PA
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Archbald, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (85%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in September
Archbald, PA
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is May (2.56").
The driest months (with the least rainfall) are January and September (1.73").
Average rainfall days in September
Archbald, PA
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Archbald, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.67").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Archbald, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Archbald, 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 12min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in September
Archbald, PA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (10 days).
Average UV index in September
Archbald, 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
Archbald, PA
- Average cloud cover in September: 44
The months with the most cloud cover are February and December (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Archbald, 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).





