September weather forecastGraymoor-Devondale, KY
September
Weather in September
September, the first month of the autumn in Graymoor-Devondale, is still a warm month, with an average temperature varying between 59.9°F (15.5°C) and 79.3°F (26.3°C).Temperature
With the onset of September, the average high-temperature subtly recedes from August's moderately hot 85.6°F (29.8°C) to a still warm 79.3°F (26.3°C). The average nighttime temperature lowers to a refreshing 59.9°F (15.5°C) throughout September.Humidity
The average relative humidity in September is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.77" (45mm) of precipitation.Snowfall
May through October are months without snowfall in Graymoor-Devondale.Daylight
In Graymoor-Devondale, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 7:12 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:26 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Graymoor-Devondale, 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
Graymoor-Devondale, 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
Graymoor-Devondale, 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
Graymoor-Devondale, 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
Graymoor-Devondale, KY
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
Graymoor-Devondale, KY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in September
Graymoor-Devondale, KY
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Graymoor-Devondale, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 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
Graymoor-Devondale, 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
Graymoor-Devondale, KY
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in September
Graymoor-Devondale, 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
Graymoor-Devondale, KY
- Average cloud cover in September: 31
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
Graymoor-Devondale, KY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and May (5mi).
