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 begins with an average high-temperature of a moderately hot 84.2°F (29°C), reflecting close similarity to the preceding month. Collinsville observes an average low-temperature of 65.3°F (18.5°C) during September nights.Heat index
In September, the average heat index is calculated to be a hot 91.4°F (33°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.One should consider that heat index numbers are for shaded settings and light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In Collinsville, the average relative humidity in September is 71%.Rainfall
In September, in Collinsville, the rain falls for 13.6 days. Throughout September, 2.48" (63mm) of precipitation is accumulated. In Collinsville, during the entire year, the rain falls for 182.9 days and collects up to 40.39" (1026mm) of precipitation.Snowfall
In Collinsville, Georgia, snow does not fall in April through October.Daylight
The average length of the day in September in Collinsville is 12h and 22min.On the first day of September in Collinsville, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:21 pm EDT.
Sunshine
The average sunshine in September in Collinsville, Georgia, is 8.6h.UV index
In Collinsville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during September translates into the following guidance:
Adopt protective measures - It is advised to guard against sun damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Collinsville during September?
What is the average humidity in September in Collinsville?
How many days does it rain in September in Collinsville?
When it does not snow in Collinsville?
What is the average length of the day in September in Collinsville?
When is the sunrise / sunset in September in Collinsville?
How many hours of sunshine does Collinsville have in September?
What is the UV index intensity in September in Collinsville?
Average temperature in September
Collinsville, GA
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Collinsville, 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
Collinsville, GA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Collinsville, GA
- Average humidity in September: 71%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Collinsville, GA
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is October (2.2").
Average rainfall days in September
Collinsville, GA
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (22.6 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Collinsville, GA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Collinsville, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.9 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
Collinsville, 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: 10h and 0min).
- Average sunshine in September: 8h and 4min
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
Collinsville, GA
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in September
Collinsville, 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
Collinsville, GA
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Collinsville, GA
- 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).
Collinsville, Georgia, USA
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