Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September in Jeffersontown involves a subtle temperature drop, shifting from a warm 85.6°F (29.8°C) in August to a still moderately hot 79.3°F (26.3°C). The average nighttime temperature in Jeffersontown lowers to a refreshing 59.9°F (15.5°C) throughout September.Humidity
In Jeffersontown, the average relative humidity in September is 74%.Rainfall
September is the month with the least rainfall in Jeffersontown. Rain falls for 11.3 days and accumulates 0.87" (22mm) of precipitation.Snowfall
In Jeffersontown, snow does not fall in May through October.Daylight
In Jeffersontown, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:11 pm. On the last day of September, in Jeffersontown, sunrise is at 7:37 am and sunset at 7:26 pm EDT.
Sunshine
In September, the average sunshine in Jeffersontown is 8.5h.UV index
In Jeffersontown, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What are September temperatures in Jeffersontown?
What is the average humidity in September in Jeffersontown?
What is the driest month in Jeffersontown?
How many days does it rain in September in Jeffersontown?
When it does not snow in Jeffersontown?
How many hours of daylight does Jeffersontown have in September?
When are sunrise and sunset in September in Jeffersontown?
How many hours of sunshine does Jeffersontown have in September?
What is the UV index intensity in September in Jeffersontown?
Average temperature in September
Jeffersontown, KY
- Average high temperature in September: 79.3°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 (39°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Jeffersontown, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Jeffersontown, KY
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Jeffersontown, KY
- Average humidity in September: 74%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Jeffersontown, KY
- Average rainfall in September: 0.87"
The wettest months (with the highest rainfall) are April and May (2.05").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in September
Jeffersontown, KY
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in September
Jeffersontown, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Jeffersontown, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.9 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
Jeffersontown, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in September
Jeffersontown, KY
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Jeffersontown, 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
Jeffersontown, KY
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Jeffersontown, KY
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).
Jeffersontown, Kentucky, USA
Weather forecast for your location
2. Allow the app to use your location
