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 start of September, Jasper measures an average high-temperature of a moderately hot 81.9°F (27.7°C), not significantly differing from August's 86.5°F (30.3°C). An average low-temperature of 61.3°F (16.3°C) is noted during the month of September.Heat index
For most parts of September, the heat index is calculated to be a tropical 87.8°F (31°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In September, the average relative humidity is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.7 days and typically collects 2.76" (70mm) of precipitation.Snowfall
In Jasper, snow does not fall in May through November.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 7:11 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:22 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In Jasper, 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 ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Undertake precautions - Guarding against sun damage is counselled. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow in Jasper?
How many hours of daylight does Jasper have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Jasper have in September?
How high is the UV index in September?
Average temperature in September
Jasper, GA
- Average high temperature in September: 81.9°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (47.1°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Jasper, GA
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Jasper, GA
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are January and February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Jasper, GA
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (74%).
Average rainfall in September
Jasper, GA
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is July (4.8").
The driest month (with the least rainfall) is September (2.76").
Average rainfall days in September
Jasper, GA
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is October (10.3 days).
Average snowfall in September
Jasper, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in September
Jasper, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Jasper, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Jasper, GA
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in September
Jasper, 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
Jasper, GA
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and October (Cloud cover 33).
Average visibility in September
Jasper, GA
- Average visibility in September: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Jasper, Georgia, USA
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