September weather forecastBethany, KY
September
Weather in September
The first month of the autumn, September, is still a warm month in Bethany, Kentucky, with temperature in the range of an average low of 57.4°F (14.1°C) and an average high of 79.5°F (26.4°C).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a warm 85.6°F (29.8°C) in August to a still moderately hot 79.5°F (26.4°C). Despite a significant disparity with daytime temperatures, an average low-temperature of 57.4°F (14.1°C) is recorded during September.Humidity
In Bethany, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall in Bethany. Rain falls for 13.1 days and accumulates 1.93" (49mm) of precipitation.Snowfall
In Bethany, snow does not fall in May through September.Daylight
The average length of the day in September in Bethany is 12h and 25min.On the first day of September, sunrise is at 7:04 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:18 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during September translates into the following guidance:
Put precautions into practice - Protective measures against sun-induced damage are advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bethany, KY
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Bethany, KY
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Bethany, KY
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Bethany, KY
- Average humidity in September: 76%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and November (74%).
Average rainfall in September
Bethany, KY
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Bethany, KY
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (11.5 days).
Average snowfall in September
Bethany, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Bethany, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 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
Bethany, 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 18min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Bethany, KY
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is February (9 days).
Average UV index in September
Bethany, KY
- Average UV index in September: 4
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
Bethany, KY
- Average cloud cover in September: 35
The months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Bethany, KY
- Average visibility in September: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
