September weather forecastMiddletown, KY
September
Weather in September
September, the first month of the autumn in Middletown, is still a warm month, with an average temperature fluctuating between 79.3°F (26.3°C) and 59.9°F (15.5°C).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 85.6°F (29.8°C) in August to a still warm 79.3°F (26.3°C). During the month of September, the temperature in Middletown, Kentucky, generally drops to a low average of 59.9°F (15.5°C).Humidity
In September, the average relative humidity is 74%.Rainfall
The month with the least rainfall in Middletown is September, when the rain falls for 11.3 days and typically collects 0.87" (22mm) of precipitation.Snowfall
In Middletown, Kentucky, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:11 pm. On the last day of September, in Middletown, sunrise is at 7:37 am and sunset at 7:26 pm EDT.
Sunshine
The average sunshine in September in Middletown, Kentucky, is 8.5h.UV index
In September, the average daily maximum UV index in Middletown, Kentucky, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun is most powerful around mid-day, so it's a good practice to reduce direct 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
Middletown, KY
- Average high temperature in September: 79.3°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Middletown, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Middletown, KY
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Middletown, KY
- Average humidity in September: 74%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Middletown, KY
- Average rainfall in September: 0.87"
The wettest months (with the highest rainfall) are April and May (2.05").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in September
Middletown, KY
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in September
Middletown, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Middletown, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.9 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
Middletown, 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 30min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in September
Middletown, KY
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Middletown, KY
- Average UV index in September: 5
The months with the highest UV index are 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
Middletown, KY
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Middletown, KY
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).





