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
In September, the average high-temperature marginally decreases from a tropical 86.5°F (30.3°C) in August to a moderately hot 81.1°F (27.3°C). Suwanee's average low-temperature for the month of September records at a comfortable 61.5°F (16.4°C).Heat index
In September, the average heat index is computed to be a hot 86°F (30°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. 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 vital to babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In September, the average relative humidity is 73%.Rainfall
The month with the least rainfall in Suwanee is September, when the rain falls for 10.7 days and typically collects 1.26" (32mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Suwanee, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:24 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:36 pm CDT.
Sunshine
In Suwanee, the average sunshine in September is 9.1h.UV index
In Suwanee, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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 Suwanee?
What is the average length of the day in September in Suwanee?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Suwanee, KY
- Average high temperature in September: 81.1°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 (41.5°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in September
Suwanee, KY
- 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 (29.95"Hg).
Average wind speed in September
Suwanee, KY
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are January, February and April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in September
Suwanee, KY
- Average humidity in September: 73%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Suwanee, KY
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is April (3.03").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in September
Suwanee, KY
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Suwanee, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Suwanee, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Suwanee, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Suwanee, KY
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in September
Suwanee, KY
- 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, February and December (UV index 2).
Average cloud cover in September
Suwanee, KY
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June, August and September (Cloud cover 29).
Average visibility in September
Suwanee, KY
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Suwanee, Kentucky, USA
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