September weather forecast
Lynn Grove, KY

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Weather in September

September, the first month of the autumn in Lynn Grove, is also a moderately hot month, with an average temperature fluctuating between 81.5°F (27.5°C) and 62.2°F (16.8°C).

Temperature

A moderate decline in average high-temperatures is noted in September, moving from a hot 87.3°F (30.7°C) in August to a moderately hot 81.5°F (27.5°C). In Lynn Grove, the average nighttime temperature during September is a comfortable 62.2°F (16.8°C).

Heat index

In September, the heat index is appraised at a hot 86°F (30°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The average relative humidity in September in Lynn Grove is 73%.

Rainfall

The month with the least rainfall in Lynn Grove is September, when the rain falls for 13.4 days and typically collects 2.05" (52mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Lynn Grove, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:25 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:38 pm CDT.

Sunshine

In September, the average sunshine in Lynn Grove, Kentucky, is 9.3h.

UV index

The average daily maximum UV index in September in Lynn Grove is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Lynn Grove in September?

In September, the average high-temperature and low-temperature in Lynn Grove, Kentucky, are 81.5°F (27.5°C) and 62.2°F (16.8°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is appraised at 86°F (30°C).

What is the average humidity in September in Lynn Grove?

In Lynn Grove, the average relative humidity in September is 73%.

What is the driest month in Lynn Grove?

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 2.05" (52mm) of precipitation.

How many days does it rain in September in Lynn Grove?

In Lynn Grove, Kentucky, in September, during 13.4 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When it does not snow in Lynn Grove?

May through October are months without snowfall in Lynn Grove, Kentucky.

How many hours of daylight does Lynn Grove have in September?

In Lynn Grove, the average day length in September is 12h and 24min.

When is the sunrise / sunset in September in Lynn Grove?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:21 pm. On the last day of the month, in Lynn Grove, Kentucky, sunrise is at 6:48 am and sunset at 6:38 pm CDT.

How long on average sun shines in September in Lynn Grove?

The average sunshine duration in September in Lynn Grove is 9.3h.

What is the UV index reading in September in Lynn Grove?

In Lynn Grove, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Lynn Grove, KY

Average temperature in September - Lynn Grove, KY
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (42.6°F).

  • Average low temperature in September: 62.2°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in September
Lynn Grove, KY

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Lynn Grove, KY

Average wind speed in September - Lynn Grove, KY
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are January, February and April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).

Average humidity in September
Lynn Grove, KY

Average humidity in September - Lynn Grove, KY
  • Average humidity in September: 73%

The months with the highest relative humidity are February, March, May and December (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Lynn Grove, KY

Average rainfall in September - Lynn Grove, KY
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is February (4.41").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in September
Lynn Grove, KY

Average rainfall days in September - Lynn Grove, KY
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (10.4 days).

Average snowfall in September
Lynn Grove, KY

Average snowfall in September - Lynn Grove, KY
  • Average snowfall in September: 0"

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

Average snowfall days in September
Lynn Grove, KY

Average snowfall days in September - Lynn Grove, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.8 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
Lynn Grove, KY

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Lynn Grove, KY

Average sunshine days in September - Lynn Grove, KY
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in September
Lynn Grove, KY

Average UV index in September - Lynn Grove, KY
  • Average UV index in September: 5

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 and December (UV index 2).

Average cloud cover in September
Lynn Grove, KY

Average cloud cover in September - Lynn Grove, KY
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

Average visibility in September
Lynn Grove, KY

Average visibility in September - Lynn Grove, 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).

Lynn Grove, Kentucky, USA

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