September weather forecast
Northern, KY

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Weather in September

The first month of the autumn, September, is still a warm month in Northern, Kentucky, with an average temperature fluctuating between 56.8°F (13.8°C) and 79.3°F (26.3°C).

Temperature

The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 85.6°F (29.8°C) in August to a still warm 79.3°F (26.3°C). Northern undergoes a major shift from daytime highs, averaging a moderate 56.8°F (13.8°C) during the night in September.

Humidity

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

Rainfall

The month with the least rainfall in Northern is September, when the rain falls for 13.5 days and typically collects 1.85" (47mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September in Northern is 12h and 25min.
On the first day of September, sunrise is at 7:02 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:15 pm EDT.

Sunshine

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

UV index

The average daily maximum UV index in September in Northern is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Northern?

In September, in Northern, the average high-temperature is 79.3°F (26.3°C), and the average low-temperature is 56.8°F (13.8°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 96.8°F (36°C).

What is the average humidity in September in Northern?

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

What is the driest month in Northern?

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

How many days does it rain in September in Northern?

In September, in Northern, the rain falls for 13.5 days. Throughout September, 1.85" (47mm) of precipitation is accumulated.

When it does not snow in Northern?

May through September are months without snowfall in Northern, Kentucky.

Does it snow in Northern in September?

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

How many hours of daylight does Northern have in September?

The average day length in September in Northern, Kentucky, is 12h and 25min.

What time are sunrise and sunset in September in Northern?

In September, on the first day of the month, sunrise is at 7:02 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:15 pm EDT.

How many hours of sunshine does Northern have in September?

The average sunshine duration in September in Northern, Kentucky, is 8.3h.

What is the UV index intensity in September in Northern?

In September, the average daily maximum UV index in Northern, Kentucky, is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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
Northern, KY

Average temperature in September - Northern, 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
Northern, KY

Average pressure in September - Northern, KY
  • Average pressure in September: 30.05"Hg

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

Average wind speed in September
Northern, KY

Average wind speed in September - Northern, 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
Northern, KY

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

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

Average rainfall in September
Northern, KY

Average rainfall in September - Northern, 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
Northern, KY

Average rainfall days in September - Northern, 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
Northern, KY

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

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

Average snowfall days in September
Northern, KY

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

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

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

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

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Northern, KY

Average sunshine days in September - Northern, 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
Northern, KY

Average UV index in September - Northern, 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
Northern, KY

Average cloud cover in September - Northern, 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
Northern, KY

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

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

Northern, Kentucky, USA

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