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
A minor adjustment in Demorest's average high-temperature is noted with the start of September, touching a moderately hot 82.9°F (28.3°C) from August's 88.2°F (31.2°C). Throughout September, Demorest records an average temperature of 61.5°F (16.4°C) at night.Heat index
Throughout September, the heat index is appraised at a tropical 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
In September, the average relative humidity is 74%.Rainfall
September is the month with the least rainfall in Demorest. Rain falls for 10.9 days and accumulates 1.93" (49mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Demorest, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 7:07 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:19 pm EDT.
Sunshine
The average sunshine in September in Demorest is 8.4h.UV index
In Demorest, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 5 during September, leads to the following 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. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Demorest during September?
What is the average humidity in September in Demorest?
What is the driest month in Demorest?
How much does it rain in Demorest in September?
When it does not snow in Demorest?
What is the average length of the day in September in Demorest?
What time are sunrise and sunset in September in Demorest?
How long on average sun shines in September in Demorest?
What is the UV index reading in September in Demorest?
Average temperature in September
Demorest, GA
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure in September
Demorest, GA
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Demorest, GA
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and February (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Demorest, GA
- Average humidity in September: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Demorest, GA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is December (4.33").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Demorest, GA
- Average rainfall days in September: 10.9 days
The months with the highest number of rainy days are May and July (15.1 days).
The month with the least rainy days is October (8.8 days).
Average snowfall in September
Demorest, GA
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.27").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Demorest, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is 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
Demorest, 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 July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Demorest, GA
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in September
Demorest, 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
Demorest, GA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in September
Demorest, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, June, July, August, September, October and November (6mi).
The months with the lowest visibility are April, May and December (5mi).
Demorest, Georgia, USA
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