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
Rockhill Station observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 82.4°F (28°C) to a still moderately hot 75.6°F (24.2°C). Throughout September, an average low-temperature of 56.5°F (13.6°C) is expected.Humidity
The average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.89" (48mm) of precipitation.Snowfall
In Rockhill Station, snow does not fall in June through September.Daylight
In Rockhill Station, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:29 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Rockhill Station, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Rockhill Station?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Rockhill Station have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Rockhill Station have in September?
How high is the UV index in September?
Average temperature in September
Rockhill Station, PA
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Rockhill Station, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Rockhill Station, PA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Rockhill Station, PA
- Average humidity in September: 78%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in September
Rockhill Station, PA
- Average rainfall in September: 1.89"
The wettest months (with the highest rainfall) are May and July (3.07").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Rockhill Station, PA
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Rockhill Station, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rockhill Station, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Rockhill Station, 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 18min).
- Average sunshine in September: 8h and 4min
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 30min).
Average sunshine days in September
Rockhill Station, PA
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Rockhill Station, 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
Rockhill Station, PA
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Rockhill Station, PA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, May, September, October and December (5mi).
Rockhill Station, Pennsylvania, USA
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