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
The beginning of September brings a minor change in the average high-temperature, shifting from a hot 87.8°F (31°C) in August to a warm 82°F (27.8°C). Throughout the month of September, Rock Spring observes an average nighttime temperature of 61°F (16.1°C).Heat index
September's heat index is calculated to be a hot 87.8°F (31°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Bear in mind that the heat index values are determined for shaded areas and light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In Rock Spring, the average relative humidity in September is 76%.Rainfall
The months with the least rainfall are June and September Rain falls for 11.2 days and accumulates 2.09" (53mm) of rain.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:25 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Rock Spring, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rock Spring in September?
What is the average humidity in September?
What is the driest month in Rock Spring?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Rock Spring have in September?
How high is the UV index in September?
Average temperature in September
Rock Spring, GA
- Average high temperature in September: 82°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 61°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in September
Rock Spring, GA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Rock Spring, GA
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in September
Rock Spring, GA
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Rock Spring, GA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is February (4.25").
The driest months (with the least rainfall) are June and September (2.09").
Average rainfall days in September
Rock Spring, GA
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Rock Spring, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Rock Spring, GA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rock Spring, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Rock Spring, GA
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is February (11.5 days).
Average UV index in September
Rock Spring, GA
- Average UV index in September: 5
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 and December (UV index 2).
Average cloud cover in September
Rock Spring, GA
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Rock Spring, GA
- Average visibility in September: 6mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
Rock Spring, Georgia, USA
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