September weather forecast
Flagg Spring, KY

Share

Weather in September

The first month of the autumn, September, is still a warm month in Flagg Spring, Kentucky, with an average temperature varying between 77.9°F (25.5°C) and 58.1°F (14.5°C).

Temperature

September heralds a minor drop in average high-temperature, sliding from August's warm 83.3°F (28.5°C) to a still moderately hot 77.9°F (25.5°C). In the month of September, Flagg Spring witnesses a consistent average low-temperature of 58.1°F (14.5°C).

Humidity

The months with the lowest humidity in Flagg Spring are August through October, with an average relative humidity of 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 1.85" (47mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in Flagg Spring, Kentucky, is 12h and 26min.
On the first day of September, sunrise is at 7:06 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:20 pm EDT.

Sunshine

In September, the average sunshine is 8.1h.

UV index

The average daily maximum UV index in September in Flagg Spring, Kentucky, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Flagg Spring?

September temperatures in Flagg Spring, Kentucky, vary between a high-temperature of 77.9°F (25.5°C) and a low-temperature of 58.1°F (14.5°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 89.6°F (32°C).

What is the least humid month in Flagg Spring?

August through October, with an average relative humidity of 75%, are the least humid months in Flagg Spring.

What is the average humidity in September in Flagg Spring?

In Flagg Spring, Kentucky, the average relative humidity in September is 75%.

What is the driest month in Flagg Spring?

September is the month with the least rainfall in Flagg Spring, Kentucky. Rain falls for 13.5 days and accumulates 1.85" (47mm) of precipitation.

How many days does it rain in September in Flagg Spring?

In Flagg Spring, Kentucky, in September, it is raining for 13.5 days, with typically 1.85" (47mm) of accumulated precipitation.

When it does not snow in Flagg Spring?

In Flagg Spring, Kentucky, snow does not fall in May through September.

Does it snow in Flagg Spring in September?

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

What is the average length of the day in September in Flagg Spring?

In September, the average day length in Flagg Spring, Kentucky, is 12h and 26min.

When is the sunrise / sunset in September in Flagg Spring?

On the first day of September in Flagg Spring, sunrise is at 7:06 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:20 pm EDT.

How long on average sun shines in September in Flagg Spring?

In Flagg Spring, Kentucky, the average sunshine duration in September is 8.1h.

How high is the UV index in September in Flagg Spring?

In September, the average daily maximum UV index in Flagg Spring, Kentucky, is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Flagg Spring, KY

Average temperature in September - Flagg Spring, KY
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

Average pressure in September
Flagg Spring, KY

Average pressure in September - Flagg Spring, KY
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Flagg Spring, KY

Average wind speed in September - Flagg Spring, KY
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Flagg Spring, KY

Average humidity in September - Flagg Spring, KY
  • Average humidity in September: 75%

The months with the highest relative humidity are January, February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).

Average rainfall in September
Flagg Spring, KY

Average rainfall in September - Flagg Spring, KY
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Flagg Spring, KY

Average rainfall days in September - Flagg Spring, KY
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is November (10 days).

Average snowfall in September
Flagg Spring, KY

Average snowfall in September - Flagg Spring, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Flagg Spring, KY

Average snowfall days in September - Flagg Spring, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.7 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
Flagg Spring, KY

Average daylight in September / Average sunshine in September - Flagg Spring, KY
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in September
Flagg Spring, KY

Average sunshine days in September - Flagg Spring, KY
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (10.2 days).

Average UV index in September
Flagg Spring, KY

Average UV index in September - Flagg Spring, KY
  • Average UV index in September: 4

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
Flagg Spring, KY

Average cloud cover in September - Flagg Spring, KY
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Flagg Spring, KY

Average visibility in September - Flagg Spring, KY
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).

Flagg Spring, Kentucky, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location