September weather forecast and climate
Frankfort, KY

The Capitol Building in Frankfort, Kentucky, during autumn
The Capitol Building in Frankfort, Kentucky, during autumn

Weather in September

The first month of the autumn, September, is also a moderately hot month in Frankfort, Kentucky, with average temperature varying between 78.8°F (26°C) and 59.7°F (15.4°C).

Temperature

In September, the average high-temperature marginally drops, from a warm 84.7°F (29.3°C) in August, to a still moderately hot 78.8°F (26°C). In Frankfort, in September, the average low-temperature is 59.7°F (15.4°C).

Humidity

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

Rainfall

The month with the least rainfall is September when the rain falls for 12 days and typically collects 1.54" (39mm) of precipitation.

Snowfall

In Frankfort snow does not fall in May through September.

Daylight

The average length of the day in September is 12.4h.

Sunshine

The average sunshine in Frankfort, Kentucky, is 8.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Frankfort?

In September, in Frankfort, Kentucky, the average high-temperature is 78.8°F (26°C), and the average low-temperature is 59.7°F (15.4°C).

What is the average humidity in September in Frankfort?

In Frankfort, the average relative humidity in September is 75%.

How many days does it rain in September in Frankfort?

In September, in Frankfort, the rain falls for 12 days. Throughout September, 1.54" (39mm) of precipitation is accumulated.

What is the driest month in Frankfort?

The month with the least rainfall in Frankfort is September when the rain falls for 12 days and typically collects 1.54" (39mm) of precipitation.

Does it snow in Frankfort in September?

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

When it does not snow in Frankfort?

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

What is the average length of the day in September in Frankfort?

The average length of the day in September in Frankfort is 12.4h.

How long on average sun shines in September in Frankfort?

The average sunshine in September in Frankfort is 8.3h.

What is the UV index reading in September in Frankfort?

The average daily maximum UV index in September in Frankfort, Kentucky, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in September
Frankfort, KY

Average temperature in September - Frankfort, KY
  • Average high temperature in September: 78.8°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in September
Frankfort, KY

Average pressure in September - Frankfort, KY
  • Average pressure in September: 30.03"

Months with the highest atmospheric pressure are January and November (30.15").
The month with the lowest atmospheric pressure is June (29.95").

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Average wind speed in September
Frankfort, KY

Average wind speed in September - Frankfort, KY
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in September
Frankfort, KY

Average humidity in September - Frankfort, KY
  • Average humidity in September: 75%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).

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Average rainfall in September
Frankfort, KY

Average rainfall in September - Frankfort, KY
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in September
Frankfort, KY

Average rainfall days in September - Frankfort, KY
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in September
Frankfort, KY

Average snowfall in September - Frankfort, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.61").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Frankfort, KY

Average snowfall days in September - Frankfort, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.6 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Frankfort, KY

Average daylight in September / Average sunshine in September - Frankfort, KY
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 8.3h

The month with the most sunshine is June (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 4.1h).

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Average sunshine days in September
Frankfort, KY

Average sunshine days in September - Frankfort, KY
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in September
Frankfort, KY

Average UV index in September - Frankfort, KY
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Frankfort, KY

Average cloud cover in September - Frankfort, KY
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Frankfort, KY

Average visibility in September - Frankfort, KY
  • Average visibility in September: 6mi

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

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