September weather forecast
Jeffrey, KY

Share

Weather in September

September, the first month of the autumn in Jeffrey, is also a moderately hot month, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 60.3°F (15.7°C).

Temperature

September ushers in a minor alteration in Jeffrey's climate, with the average high-temperature moving from August's warm 85.5°F (29.7°C) to a still moderately hot 79.7°F (26.5°C). In Jeffrey, the average nighttime temperature during September is a moderate 60.3°F (15.7°C).

Humidity

The average relative humidity in September in Jeffrey, Kentucky, is 77%.

Rainfall

The month with the least rainfall is September, when the rain falls for 14.5 days and typically collects 2.4" (61mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Jeffrey is 12h and 24min.
On the first day of September, sunrise is at 6:15 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:27 pm CDT.

Sunshine

The average sunshine in September is 8.3h.

UV index

In Jeffrey, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Take precautions - Protection against sun damage is advised. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In Jeffrey, in September, the average high-temperature is 79.7°F (26.5°C), and the average low-temperature is 60.3°F (15.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is appraised at 96.8°F (36°C).

What is the average humidity in September?

In September, the average relative humidity is 77%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 14.5 days and typically collects 2.4" (61mm) of precipitation.

How much does it rain in Jeffrey in September?

In Jeffrey, in September, it is raining for 14.5 days, with typically 2.4" (61mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

In Jeffrey, Kentucky, the average day length in September is 12h and 24min.

When are sunrise and sunset in September in Jeffrey?

On the first day of September, sunrise is at 6:15 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:27 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.3h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents 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
Jeffrey, KY

Average temperature in September - Jeffrey, KY
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (42.1°F).

  • Average low temperature in September: 60.3°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
Jeffrey, KY

Average pressure in September - Jeffrey, 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
Jeffrey, KY

Average wind speed in September - Jeffrey, KY
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in September
Jeffrey, KY

Average humidity in September - Jeffrey, KY
  • Average humidity in September: 77%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are April, October and November (76%).

Average rainfall in September
Jeffrey, KY

Average rainfall in September - Jeffrey, KY
  • Average rainfall in September: 2.4"

The wettest months (with the highest rainfall) are February and July (4.25").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in September
Jeffrey, KY

Average rainfall days in September - Jeffrey, KY
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (11.2 days).

Average snowfall in September
Jeffrey, KY

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

The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Jeffrey, KY

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

The month with the highest number of snowfall days is January (6.7 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
Jeffrey, KY

Average daylight in September / Average sunshine in September - Jeffrey, 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: 8h and 2min

The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in September
Jeffrey, KY

Average sunshine days in September - Jeffrey, KY
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in September
Jeffrey, KY

Average UV index in September - Jeffrey, 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
Jeffrey, KY

Average cloud cover in September - Jeffrey, KY
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are June and August (Cloud cover 30).

Average visibility in September
Jeffrey, KY

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

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

Jeffrey, Kentucky, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location