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
With the onset of September, Sinking Spring's average high-temperature slightly adjusts, moderately receding from August's moderately hot 80.6°F (27°C) to a still warm 74.5°F (23.6°C). An average low-temperature of 55.6°F (13.1°C) is common during the nights of September.Humidity
In September, the average relative humidity is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.85" (47mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Sinking Spring, the average length of the day in September is 12h and 27min.On the first day of September in Sinking Spring, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sinking Spring in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Sinking Spring?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Sinking Spring, PA
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in September
Sinking Spring, 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
Sinking Spring, PA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Sinking Spring, PA
- Average humidity in September: 79%
The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Sinking Spring, PA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is August (2.95").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Sinking Spring, PA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Sinking Spring, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sinking Spring, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sinking Spring, PA
- Average daylight in September: 12h and 2min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Sinking Spring, PA
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in September
Sinking Spring, PA
- Average UV index in September: 4
The months with the highest UV index are May, June and 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
Sinking Spring, PA
- Average cloud cover in September: 38
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Sinking Spring, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July, November and December (6mi).
The months with the lowest visibility are February, May, August, September and October (5mi).
Sinking Spring, Pennsylvania, USA
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