September weather forecastKeene, KY
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Keene, Kentucky, with an average temperature fluctuating between 78.1°F (25.6°C) and 59.2°F (15.1°C).Temperature
The average high-temperature shows a slight dip in September, from August's moderately hot 84.2°F (29°C) to a still warm 78.1°F (25.6°C). The average temperature during September nights dips to a moderate 59.2°F (15.1°C).Humidity
In September, the average relative humidity is 76%.Rainfall
The months with the least rainfall are September and October Rain falls for 12.6 days and accumulates 2.05" (52mm) of rain.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 7:09 am and sunset at 8:07 pm. On the last day of September, in Keene, sunrise is at 7:33 am and sunset at 7:22 pm EDT.
Sunshine
In Keene, the average sunshine in September is 8.1h.UV index
In Keene, Kentucky, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Keene, KY
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Keene, KY
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Keene, KY
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Keene, KY
- Average humidity in September: 76%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Keene, KY
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (3.23").
The driest months (with the least rainfall) are September and October (2.05").
Average rainfall days in September
Keene, KY
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Keene, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Keene, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.4 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
Keene, KY
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
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: 4h and 0min).
Average sunshine days in September
Keene, KY
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in September
Keene, 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
Keene, 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 29).
Average visibility in September
Keene, KY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).
