September weather forecastDouglas, KY

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Douglas, Kentucky, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 56.8°F (13.8°C).

Temperature

September sees a slight reduction in average high-temperature, with a shift from a warm 85.3°F (29.6°C) in August to a still moderately hot 79.3°F (26.3°C). In Douglas, September nights witness a remarkable decline from the day's zenith to a moderate 56.8°F (13.8°C).

Humidity

In September, the average relative humidity is 76%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 1.73" (44mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 7:01 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.

Sunshine

In Douglas, Kentucky, the average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily UV index of 4 turns into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Douglas, records 79.3°F (26.3°C), while the low-temperature is 56.8°F (13.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 95°F (35°C).

In Douglas, the average relative humidity in September is 76%.

The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 1.73" (44mm) of precipitation.

In Douglas, in September, it is raining for 13.3 days, with typically 1.73" (44mm) of accumulated precipitation.

May through September are months without snowfall.

In Douglas, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length is 12h and 25min.

On the first day of September, sunrise is at 7:01 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.

In Douglas, the average sunshine duration in September is 8.2h.

In Douglas, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Douglas, KY

  • Average high temperature in September: 79.3°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 (41.2°F).

  • Average low temperature in September: 56.8°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°F).

Average pressure in September
Douglas, KY

  • Average pressure in September: 30.06"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
Douglas, KY

  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in September
Douglas, KY

  • Average humidity in September: 76%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are July, August and November (74%).

Average rainfall in September
Douglas, KY

  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is February (3.62").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in September
Douglas, KY

  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is November (11.3 days).

Average snowfall in September
Douglas, KY

  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Douglas, KY

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Douglas, 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 12min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
Douglas, KY

  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (8.3 days).

Average UV index in September
Douglas, KY

  • Average UV index in September: 4

The months with the highest UV index are June 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
Douglas, KY

  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Douglas, 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).