September weather forecast
Waco, KY

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Weather in September

September, the first month of the autumn in Waco, is also a moderately hot month, with an average temperature fluctuating between 58.6°F (14.8°C) and 78.3°F (25.7°C).

Temperature

September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a warm 84°F (28.9°C) in August to a still moderately hot 78.3°F (25.7°C). Waco observes an average low-temperature of 58.6°F (14.8°C) during September nights.

Humidity

The months with the lowest humidity are August through November, with an average relative humidity of 76%.

Rainfall

In September, the rain falls for 13.3 days. Throughout September, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 152.9 rainfall days, and 20.35" (517mm) of precipitation is accumulated.

Snowfall

In Waco, snow does not fall in May through October.

Daylight

In Waco, Kentucky, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 7:07 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:20 pm EDT.

Sunshine

The average sunshine in September is 8.2h.

UV index

The average daily maximum UV index in September in Waco is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

In September, the average high-temperature and low-temperature are 78.3°F (25.7°C) and 58.6°F (14.8°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 93.2°F (34°C).

What is the least humid month?

The months with the lowest humidity are August through November, with an average relative humidity of 76%.

What is the average humidity in September?

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

How much does it rain in September?

In Waco, in September, during 13.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow in Waco?

In Waco, snow does not fall in May through October.

How many hours of daylight does Waco have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 7:07 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:20 pm EDT.

How many hours of sunshine does Waco have in September?

In September, the average sunshine duration is 8.2h.

What is the UV index intensity in September?

In Waco, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from 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
Waco, KY

Average temperature in September - Waco, KY
  • Average high temperature in September: 78.3°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in September
Waco, KY

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Waco, KY

Average wind speed in September - Waco, KY
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Waco, KY

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

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are August, September, October and November (76%).

Average rainfall in September
Waco, KY

Average rainfall in September - Waco, KY
  • Average rainfall in September: 1.42"

The wettest months (with the highest rainfall) are June and July (2.17").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in September
Waco, KY

Average rainfall days in September - Waco, KY
  • Average rainfall days in September: 13.3 days

The months with the highest number of rainy days are May and July (16.7 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in September
Waco, KY

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

The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Waco, KY

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

The month with the highest number of snowfall days is January (7.5 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
Waco, KY

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

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 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
Waco, KY

Average sunshine days in September - Waco, KY
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (11.6 days).

Average UV index in September
Waco, KY

Average UV index in September - Waco, KY
  • Average UV index in September: 4

The months with the highest UV index are May, 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
Waco, KY

Average cloud cover in September - Waco, 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 29).

Average visibility in September
Waco, KY

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

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

Waco, Kentucky, USA

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