September weather forecastDanville, KY
September
Weather in September
The arrival of September signifies the gradual decline in the average temperature in Danville, Kentucky. With a reduction of 6°F (-14.4°C) from August, September paves the way for fall. The dropping temperature post-mid-September creates an environment perfect for mountain hiking and picnics. September also experiences shorter daylight hours compared to August, fostering beautiful sunset views. The noticeable change in the weather begins to colour the trees, creating an aesthetically pleasing view for both locals and tourists.Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from 84.6°F (29.2°C) in August to a still warm 78.1°F (25.6°C). September brings Danville a consistent average low-temperature of 59.2°F (15.1°C).Humidity
The months with the lowest humidity are August through October, with an average relative humidity of 76%.Rainfall
September is the month with the least rainfall in Danville. Rain falls for 14 days and accumulates 2.48" (63mm) of precipitation.Snowfall
In Danville, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 7:09 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
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 unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Danville, KY
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in September: 59.2°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 (26.6°F).
Average pressure in September
Danville, KY
- 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 (29.96"Hg).
Average wind speed in September
Danville, KY
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Danville, KY
- Average humidity in September: 76%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are August, September and October (76%).
Average rainfall in September
Danville, KY
- Average rainfall in September: 2.48"
The wettest months (with the highest rainfall) are February, April and December (3.66").
The driest month (with the least rainfall) is September (2.48").
Average rainfall days in September
Danville, KY
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (11.2 days).
Average snowfall in September
Danville, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Danville, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 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
Danville, KY
- Average daylight in September: 12h and 24min
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 36min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Danville, KY
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is October (16.4 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in September
Danville, 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, November and December (UV index 2).
Average cloud cover in September
Danville, KY
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Danville, KY
- Average visibility in September: 6mi
The months with the highest visibility are April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July and December (5mi).
