September weather forecastClifton, KY
September
Weather in September
September, the first month of the autumn in Clifton, is also a moderately hot month, with an average temperature fluctuating between 58.6°F (14.8°C) and 77.9°F (25.5°C).Temperature
September heralds a minor drop in average high-temperature, sliding from August's moderately hot 83.8°F (28.8°C) to a still warm 77.9°F (25.5°C). During September, Clifton sees a mean low-temperature of 58.6°F (14.8°C).Humidity
August through October, with an average relative humidity of 74%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 12.1 days and typically collects 1.54" (39mm) of precipitation.Snowfall
In Clifton, snow does not fall in May through October.Daylight
In Clifton, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:07 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:21 pm EDT.
Sunshine
In Clifton, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clifton, KY
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in September
Clifton, KY
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Clifton, KY
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Clifton, KY
- Average humidity in September: 74%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (74%).
Average rainfall in September
Clifton, KY
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Clifton, KY
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Clifton, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Clifton, KY
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (5.5 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
Clifton, KY
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Clifton, KY
- Average sunshine days in September: 16.2 days
The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in September
Clifton, 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
Clifton, KY
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Clifton, KY
- 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).
