Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a minor shift in the average high-temperature, adjusting from a warm 82.2°F (27.9°C) in August to a still moderately hot 76.6°F (24.8°C). Despite a significant daily temperature range, Holmes Mill's temperature falls to a steady low-temperature average of 55°F (12.8°C) in September.Humidity
In Holmes Mill, the average relative humidity in September is 78%.Rainfall
September and November are months with the least rain when the rain falls for 16.7 days and typically aggregates up to 2.87" (73mm) of rain.Snowfall
June through September are months without snowfall.Daylight
In Holmes Mill, Kentucky, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 7:03 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:27 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the UV index of 4 transforms into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Holmes Mill, KY
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Holmes Mill, KY
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Holmes Mill, KY
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Holmes Mill, KY
- Average humidity in September: 78%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is November (77%).
Average rainfall in September
Holmes Mill, KY
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is July (4.65").
The driest months (with the least rainfall) are September and November (2.87").
Average rainfall days in September
Holmes Mill, KY
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is May (22.1 days).
The month with the least rainy days is November (11.9 days).
Average snowfall in September
Holmes Mill, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Holmes Mill, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Holmes Mill, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Holmes Mill, KY
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (7.3 days).
Average UV index in September
Holmes Mill, KY
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Holmes Mill, KY
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Holmes Mill, KY
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Holmes Mill, Kentucky, USA
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