September weather forecastAbbottstown, PA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Abbottstown, Pennsylvania, with an average temperature ranging between min 56.3°F (13.5°C) and max 75°F (23.9°C).Temperature
Abbottstown's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's 81.3°F (27.4°C) to a still moderately hot 75°F (23.9°C). Abbottstown encounters an average low-temperature of 56.3°F (13.5°C) during September nights.Humidity
In September, the average relative humidity is 79%.Rainfall
In Abbottstown, during September, the rain falls for 11.4 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Abbottstown, during the entire year, the rain falls for 132.7 days and collects up to 16.81" (427mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Abbottstown, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:51 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Abbottstown, 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 (35.6°F).
- Average low temperature in September: 56.3°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 (22.6°F).
Average pressure in September
Abbottstown, 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 (29.95"Hg).
Average wind speed in September
Abbottstown, PA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Abbottstown, PA
- Average humidity in September: 79%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Abbottstown, PA
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Abbottstown, PA
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Abbottstown, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Abbottstown, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Abbottstown, PA
- Average daylight in September: 12h and 24min
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 54min
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 36min).
Average sunshine days in September
Abbottstown, PA
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in September
Abbottstown, 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
Abbottstown, PA
- Average cloud cover in September: 38
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Abbottstown, 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).
