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 is characterized by a slight reduction in average high-temperature, easing from a moderately hot 85.5°F (29.7°C) in August to a still warm 79.7°F (26.5°C). During the month of September, the nighttime temperature in Big Clifty falls to an average of 60.3°F (15.7°C).Humidity
The average relative humidity in September is 75%.Rainfall
The month with the least rainfall in Big Clifty is September, when the rain falls for 12.5 days and typically collects 1.69" (43mm) of precipitation.Snowfall
May through October are months without snowfall in Big Clifty, Kentucky.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:13 pm. On the last day of September, in Big Clifty, Kentucky, sunrise is at 6:39 am and sunset at 6:28 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Big Clifty, Kentucky, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Big Clifty in September?
What is the average humidity in September in Big Clifty?
What is the driest month in Big Clifty?
How many days does it rain in September in Big Clifty?
When it does not snow in Big Clifty?
What is the average length of the day in September in Big Clifty?
What time are sunrise and sunset in September in Big Clifty?
How many hours of sunshine does Big Clifty have in September?
What is the UV index intensity in September in Big Clifty?
Average temperature in September
Big Clifty, KY
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in September
Big Clifty, 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 (29.96"Hg).
Average wind speed in September
Big Clifty, KY
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in September
Big Clifty, KY
- Average humidity in September: 75%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Big Clifty, KY
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Big Clifty, KY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in September
Big Clifty, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Big Clifty, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 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
Big Clifty, KY
- Average daylight in September: 12h and 2min
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 3min
The months with the most sunshine are June and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Big Clifty, KY
- Average sunshine days in September: 15.2 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in September
Big Clifty, 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
Big Clifty, 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 30).
Average visibility in September
Big Clifty, KY
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and May (5mi).
Big Clifty, Kentucky, USA
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