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's arrival brings an average high-temperature of a still warm 73.8°F (23.2°C), demonstrating subtle variation from the preceding month. During the nights in September, Athens experiences a consistent average temperature of 55.9°F (13.3°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In Athens, during September, the rain falls for 10.1 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Athens, during the entire year, the rain falls for 129.2 days and collects up to 15.04" (382mm) of precipitation.Snowfall
In Athens, snow does not fall in May through September.Daylight
In Athens, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:11 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:27 pm EDT.
Sunshine
In Athens, the average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Athens have in September?
How high is the UV index in September?
Average temperature in September
Athens, IN
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Athens, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Athens, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Athens, IN
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Athens, IN
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are February and December (0.79").
Average rainfall days in September
Athens, IN
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in September
Athens, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Athens, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8 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
Athens, IN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 0min
The months with the most sunshine are June and July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Athens, IN
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in September
Athens, IN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Athens, IN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Athens, IN
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
Athens, Indiana, USA
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