September weather forecastRadcliff, KY
September
Weather in September
September witnesses a shift in Radcliff's climatic patterns, marking the onset of fall. This month sees a noticeable drop in temperatures from August, turning the weather noticeably cooler. The change is also visible in the decreasing daylight hours and an increase in cloud cover. As September unfolds, Radcliff discards its summer palette, and hues of fall fill its landscapes. The arrival of fall is a gentle reminder of the imminent winter and the cyclic nature of climatic patterns.Temperature
Radcliff's progression into September involves a minor drop in the average high-temperature, slightly receding from a tropical 86°F (30°C) in August to a warm 79.7°F (26.5°C). In September, the nighttime temperature lowers to an average of 59.9°F (15.5°C).Humidity
August through October, with an average relative humidity of 74%, are the least humid months.Rainfall
The month with the least rainfall in Radcliff, Kentucky, is September, when the rain falls for 14.1 days and typically collects 2.09" (53mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Radcliff, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:12 pm. On the last day of September, sunrise is at 7:39 am and sunset at 7:27 pm EDT.
Sunshine
In Radcliff, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in Radcliff is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Radcliff, KY
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Radcliff, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Radcliff, KY
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Radcliff, KY
- Average humidity in September: 74%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August, September and October (74%).
Average rainfall in September
Radcliff, KY
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in September
Radcliff, KY
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (18.5 days).
The months with the least rainy days are January, February and November (10.6 days).
Average snowfall in September
Radcliff, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Radcliff, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 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
Radcliff, 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 36min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in September
Radcliff, KY
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in September
Radcliff, 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 and December (UV index 2).
Average cloud cover in September
Radcliff, KY
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Radcliff, KY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May, July and December (5mi).
