September weather forecastSandgap, KY
September
Weather in September
September, the first month of the autumn in Sandgap, is still a warm month, with an average temperature varying between 58.3°F (14.6°C) and 78.4°F (25.8°C).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 84.4°F (29.1°C) in August to a still warm 78.4°F (25.8°C). Nighttime temperatures in Sandgap hover around an average low of 58.3°F (14.6°C) in September.Humidity
August through October, with an average relative humidity of 76%, are the least humid months.Rainfall
In Sandgap, Kentucky, in September, during 13.9 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Sandgap, during the entire year, the rain falls for 164.7 days and collects up to 31.54" (801mm) of precipitation.Snowfall
In Sandgap, Kentucky, snow does not fall in May through October.Daylight
In September, the average length of the day in Sandgap is 12h and 25min.On the first day of September in Sandgap, sunrise is at 7:07 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:20 pm EDT.
Sunshine
The average sunshine in September in Sandgap is 8.1h.UV index
In September, the average daily maximum UV index in Sandgap is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake protective steps - Preventing sun damage is advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sandgap, KY
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in September
Sandgap, 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
Sandgap, KY
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are January and February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Sandgap, KY
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August, September and October (76%).
Average rainfall in September
Sandgap, KY
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is February (3.19").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Sandgap, KY
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (17.6 days).
The months with the least rainy days are January and November (10.3 days).
Average snowfall in September
Sandgap, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Sandgap, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 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
Sandgap, 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 6min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Sandgap, KY
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is February (10.5 days).
Average UV index in September
Sandgap, 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, November and December (UV index 2).
Average cloud cover in September
Sandgap, KY
- Average cloud cover in September: 34
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
Sandgap, 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).





