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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 79°F (26.1°C) in August to a pleasant 73°F (22.8°C). The average temperature drops to a fresh 53.6°F (12°C) during the night in the month of September.Humidity
The average relative humidity in September is 80%.Rainfall
The month with the least rainfall in Arnots Addition is September, when the rain falls for 12.7 days and typically collects 2.09" (53mm) of precipitation.Snowfall
June through September are months without snowfall in Arnots Addition, Pennsylvania.Daylight
In Arnots Addition, the average length of the day in September is 12h and 27min.On the first day of September in Arnots Addition, sunrise is at 6:32 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:48 pm EDT.
Sunshine
The average sunshine in September in Arnots Addition is 8.8h.UV index
In Arnots Addition, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Arnots Addition?
What is the average humidity in September in Arnots Addition?
What is the driest month in Arnots Addition?
How much does it rain in Arnots Addition in September?
When it does not snow in Arnots Addition?
Does it snow in Arnots Addition in September?
How many hours of daylight does Arnots Addition have in September?
When are sunrise and sunset in September in Arnots Addition?
How many hours of sunshine does Arnots Addition have in September?
How high is the UV index in September in Arnots Addition?
Average temperature in September
Arnots Addition, PA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Arnots Addition, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Arnots Addition, PA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Arnots Addition, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Arnots Addition, PA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in September
Arnots Addition, PA
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and November (10.8 days).
Average snowfall in September
Arnots Addition, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Arnots Addition, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arnots Addition, PA
- Average daylight in September: 12h and 3min
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 18min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 24min).
Average sunshine days in September
Arnots Addition, PA
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in September
Arnots Addition, PA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Arnots Addition, PA
- Average cloud cover in September: 38
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Arnots Addition, 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).
Arnots Addition, Pennsylvania, USA
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