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 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 arrival of September is marked by an average high-temperature of a still tropical 87.6°F (30.9°C), bearing a close resemblance to August. Colerain's nighttime temperature in September drops to an average of 70.7°F (21.5°C).Heat index
During September, the heat index is computed to be a blisteringly hot 104°F (40°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Realize that the values for the heat index are set for shaded places and light winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In September, the average relative humidity is 77%.Rainfall
In Colerain, during September, the rain falls for 15.2 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Colerain, during the entire year, the rain falls for 155.2 days and collects up to 22.76" (578mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:13 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Colerain have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Colerain, GA
- Average high temperature in September: 87.6°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in September
Colerain, GA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Colerain, GA
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is April (5.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Colerain, GA
- Average humidity in September: 77%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are March and April (71%).
Average rainfall in September
Colerain, GA
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is August (3.58").
The driest months (with the least rainfall) are January and November (0.98").
Average rainfall days in September
Colerain, GA
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is November (7.6 days).
Average snowfall days in September
Colerain, GA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January, February and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Colerain, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Colerain, GA
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is March (20.7 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in September
Colerain, GA
- Average UV index in September: 6
The months with the highest UV index are May, June and July (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Colerain, GA
- Average cloud cover in September: 37
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are July and October (Cloud cover 33).
Average visibility in September
Colerain, GA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June and July (6mi).
The months with the lowest visibility are February, May, August, September, October, November and December (5mi).
Colerain, Georgia, USA
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