September weather forecast
Constance, KY

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Constance, Kentucky, with an average temperature ranging between min 59°F (15°C) and max 77.9°F (25.5°C).

Temperature

In September, the average high-temperature marginally drops from a warm 83.8°F (28.8°C) in August to a still moderately hot 77.9°F (25.5°C). Constance, during the month of September, experiences an average low-temperature of 59°F (15°C).

Humidity

August through October, with an average relative humidity of 74%, are the least humid months.

Rainfall

September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

In Constance, snow does not fall in May through September.

Daylight

In Constance, the average length of the day in September is 12h and 26min.
On the first day of September in Constance, sunrise is at 7:07 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:22 pm EDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in September in Constance is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

September temperatures vary between a high-temperature of 77.9°F (25.5°C) and a low-temperature of 59°F (15°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 91.4°F (33°C).

What is the least humid month?

August through October, with an average relative humidity of 74%, are the least humid months.

What is the average humidity in September in Constance?

In September, the average relative humidity is 74%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 1.34" (34mm) of precipitation.

How much does it rain in September?

In Constance, during September, the rain falls for 12.4 days and regularly aggregates up to 1.34" (34mm) of precipitation.

When it does not snow?

In Constance, snow does not fall in May through September.

Does it snow in September?

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

What is the average length of the day in September?

In September, the average day length is 12h and 26min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:07 am and sunset at 8:08 pm. On the last day of the month, in Constance, sunrise is at 7:34 am and sunset at 7:22 pm EDT.

How long on average sun shines in September?

In Constance, Kentucky, the average sunshine duration in September is 8.3h.

What is the UV index intensity in September in Constance?

In Constance, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Constance, KY

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

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in September
Constance, KY

Average pressure in September - Constance, 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
Constance, KY

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

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in September
Constance, KY

Average humidity in September - Constance, KY
  • Average humidity in September: 74%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are August, September and October (74%).

Average rainfall in September
Constance, KY

Average rainfall in September - Constance, KY
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days in September
Constance, KY

Average rainfall days in September - Constance, KY
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in September
Constance, KY

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

The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Constance, KY

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

The month with the highest number of snowfall days is January (8.5 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
Constance, KY

Average daylight in September / Average sunshine in September - Constance, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
Constance, KY

Average sunshine days in September - Constance, KY
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and June (12 days).

Average UV index in September
Constance, KY

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

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
Constance, KY

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

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Constance, KY

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

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

Constance, Kentucky, USA

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