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
September commences with an average high-temperature of a still moderately hot 80.8°F (27.1°C), showing little deviation from August's 85.8°F (29.9°C). An average low-temperature of 60.4°F (15.8°C) is expected in Helen during September.Heat index
In September, the average heat index is computed to be 84.2°F (29°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
The average relative humidity in September is 75%.Rainfall
In Helen, in September, it is raining for 14.5 days, with typically 2.56" (65mm) of accumulated precipitation. In Helen, during the entire year, the rain falls for 182.3 days and collects up to 42.2" (1072mm) of precipitation.Snowfall
In Helen, snow does not fall in May through October.Daylight
In September, the average length of the day in Helen is 12h and 23min.On the first day of the month, sunrise is at 7:08 am and sunset at 8:00 pm. On the last day of September, in Helen, sunrise is at 7:29 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine in Helen is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 during September translates into the following guidance:
Put precautions into practice - Guidance to elude sunburn is provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Helen?
What is the average humidity in September in Helen?
How much does it rain in Helen in September?
When it does not snow in Helen?
What is the average length of the day in September in Helen?
When is the sunrise / sunset in September in Helen?
How long on average sun shines in September in Helen?
What is the UV index intensity in September in Helen?
Average temperature in September
Helen, GA
- Average high temperature in September: 80.8°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (47.1°F).
- Average low temperature in September: 60.4°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
Helen, GA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Helen, GA
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is January (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Helen, GA
- Average humidity in September: 75%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are January, July, October and November (74%).
Average rainfall in September
Helen, GA
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is December (4.33").
The driest month (with the least rainfall) is October (2.48").
Average rainfall days in September
Helen, GA
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (20.8 days).
The months with the least rainy days are October and November (10.1 days).
Average snowfall in September
Helen, GA
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Helen, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 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
Helen, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Helen, GA
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (6.7 days).
Average UV index in September
Helen, 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
Helen, GA
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Helen, GA
- Average visibility in September: 5mi
The months with the highest visibility are June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, September and December (5mi).
Helen, Georgia, USA
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