September weather forecast and climate
Betty, KY

The first month of the autumn, September, is also a moderately hot month in Betty, Kentucky, with average temperature fluctuating between 56.8°F (13.8°C) and 79.3°F (26.3°C).

Temperature

In Betty, the average high-temperature slightly decreases, from 85.6°F (29.8°C) in August, to a still warm 79.3°F (26.3°C). In Betty, in September, the average low-temperature is 56.8°F (13.8°C).

Humidity

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

Rainfall

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

Snowfall

In Betty snow does not fall in May through September.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In Betty, the average sunshine is 8.3h.

UV index

In September, the average daily maximum UV index in Betty is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Betty?

In September, the average high-temperature is 79.3°F (26.3°C), and the average low-temperature is 56.8°F (13.8°C).

What is the average humidity in September in Betty?

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

How many days does it rain in September in Betty?

In Betty, during September, the rain falls for 13.5 days and regularly aggregates up to 1.85" (47mm) of precipitation.

What is the driest month in Betty?

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

Does it snow in Betty in September?

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

When it does not snow in Betty?

In Betty snow does not fall in May through September.

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

In Betty, the average length of the day in September is 12.4h.

How many hours of sunshine does Betty have in September?

In September, the average sunshine in Betty is 8.3h.

How high is the UV index in September in Betty?

In Betty, Kentucky, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV rays.
Average temperature in September - Betty, KY
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in September: 56.8°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in September - Betty, KY
  • Average pressure in September: 30.05"

Months with the highest atmospheric pressure are January and November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

Average wind speed in September - Betty, KY
  • Average wind speed in September: 4.3mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in September - Betty, KY
  • Average humidity in September: 76%

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

Average rainfall in September - Betty, KY
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September - Betty, KY
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (11.4 days).

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

The month with the highest snowfall is January (3.62").
Months with the least snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is January (11.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 14.7h).
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 August (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.2h).

Average sunshine days in September - Betty, KY
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is October (16.1 days).
The month with the least sunshine days is February (8.3 days).

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

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

Average cloud cover in September - Betty, KY
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September - Betty, KY
  • Average visibility in September: 5mi

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