September weather forecastManchester, KY
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Manchester, Kentucky, with an average temperature fluctuating between 79°F (26.1°C) and 57.2°F (14°C).Temperature
September indicates a minor shift in the average high-temperature, from August's moderately hot 85.1°F (29.5°C) to a still warm 79°F (26.1°C). Manchester experiences a substantial decline from the daytime high temperatures in September, settling on an average low of 57.2°F (14°C).Humidity
The months with the lowest humidity in Manchester are April, June, August through November, with an average relative humidity of 76%.Rainfall
September is the month with the least rainfall. Rain falls for 13.1 days and accumulates 1.81" (46mm) of precipitation.Snowfall
May through September are months without snowfall in Manchester.Daylight
In Manchester, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 7:06 am and sunset at 8:03 pm. On the last day of September, in Manchester, sunrise is at 7:30 am and sunset at 7:19 pm EDT.
Sunshine
The average sunshine in September in Manchester is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Manchester, KY
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in September
Manchester, KY
- Average pressure in September: 30.04"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
Manchester, KY
- Average wind speed in September: 4.4mph
The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Manchester, 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 April, June, August, September, October and November (76%).
Average rainfall in September
Manchester, KY
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is February (3.31").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Manchester, KY
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (11 days).
Average snowfall in September
Manchester, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Manchester, 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
Manchester, 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 42min).
- Average sunshine in September: 8h and 18min
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 12min).
Average sunshine days in September
Manchester, KY
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in September
Manchester, 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
Manchester, KY
- Average cloud cover in September: 34
The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Manchester, KY
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
