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
Callery in September undergoes a slight reduction in the average high-temperature, shifting from August's 80.8°F (27.1°C) to a still moderately hot 74.3°F (23.5°C). Callery throughout September, experiences an average nighttime temperature of 54.7°F (12.6°C).Humidity
The average relative humidity in September is 79%.Rainfall
In September, the rain falls for 15.4 days. Throughout September, 2.72" (69mm) of precipitation is accumulated. In Callery, during the entire year, the rain falls for 184.5 days and collects up to 36.54" (928mm) of precipitation.Snowfall
In Callery, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:51 pm. On the last day of September, in Callery, sunrise is at 7:16 am and sunset at 7:03 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Callery, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Callery in September?
What is the average humidity in September in Callery?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Callery have in September?
What time are sunrise and sunset in September in Callery?
How many hours of sunshine does Callery have in September?
How high is the UV index in September?
Average temperature in September
Callery, PA
- Average high temperature in September: 74.3°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 (31.8°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Callery, PA
- Average pressure in September: 30.05"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
Callery, PA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Callery, PA
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Callery, PA
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in September
Callery, PA
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in September
Callery, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Callery, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Callery, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Callery, PA
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in September
Callery, PA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Callery, PA
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Callery, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Callery, Pennsylvania, USA
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