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
September is marked by a subtle drop in average high-temperatures, transitioning from a moderately hot 81.1°F (27.3°C) in August to a still warm 75°F (23.9°C). An average low-temperature of 57.7°F (14.3°C) is observed during September nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Caln Meeting House, Pennsylvania, during September, the rain falls for 12.5 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, there are 145.6 rainfall days, and 26.81" (681mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Caln Meeting House.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:31 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:46 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index in Caln Meeting House is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Take precautions - Protection against sun damage is advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What is the temperature in September in Caln Meeting House?
What is the average humidity in September in Caln Meeting House?
How many days does it rain in September in Caln Meeting House?
When it does not snow in Caln Meeting House?
Does it snow in Caln Meeting House in September?
How many hours of daylight does Caln Meeting House have in September?
When are sunrise and sunset in September in Caln Meeting House?
How long on average sun shines in September in Caln Meeting House?
How high is the UV index in September in Caln Meeting House?
Average temperature in September
Caln Meeting House, PA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in September
Caln Meeting House, 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
Caln Meeting House, PA
- Average wind speed in September: 5.6mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Caln Meeting House, PA
- Average humidity in September: 79%
The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Caln Meeting House, PA
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in September
Caln Meeting House, PA
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Caln Meeting House, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Caln Meeting House, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Caln Meeting House, 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 4min
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
Caln Meeting House, PA
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Caln Meeting House, 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, March, November and December (UV index 2).
Average cloud cover in September
Caln Meeting House, PA
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Caln Meeting House, 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).
Caln Meeting House, Pennsylvania, USA
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