September weather forecast
Jeffersonville, IN

englishespañol中文
Share

Weather in September

September in Jeffersonville indicates the onset of autumn, featuring moderately warm days and cooler nights. Comparatively, the month is significantly cooler than August, paving the way for pleasant fall weather. Amid the remarkable changes, September records an average minimum temperature of around 60.1°F (15.6°C). October's arrival carries a further drop in temperatures. Nevertheless, September manages to strike a perfect blend between summer's residual warmth and approaching autumn's chill.

Temperature

A moderate decline in average high-temperatures is noted in September, moving from 85.8°F (29.9°C) in August to a still warm 79.5°F (26.4°C). Jeffersonville's temperature tends to fall to an average low of 60.1°F (15.6°C) during the nights of September.

Humidity

The average relative humidity in September is 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 15.1 days and accumulates 2.17" (55mm) of precipitation.

Snowfall

May through October are months without snowfall in Jeffersonville.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 7:13 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:26 pm EDT.

Sunshine

In September, the average sunshine in Jeffersonville is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against skin and eye damage is obliged. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

What is the average September temperature?

During September, Jeffersonville experiences an average high-temperature of 79.5°F (26.4°C) and a low-temperature of 60.1°F (15.6°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 96.8°F (36°C).

What is the average humidity in September?

In Jeffersonville, the average relative humidity in September is 74%.

What is the driest month in Jeffersonville?

The month with the least rainfall is September, when the rain falls for 15.1 days and typically collects 2.17" (55mm) of precipitation.

How many days does it rain in September?

In Jeffersonville, in September, during 15.1 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Jeffersonville have in September?

In Jeffersonville, the average day length in September is 12h and 25min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:13 am and sunset at 8:12 pm. On the last day of the month, in Jeffersonville, sunrise is at 7:38 am and sunset at 7:26 pm EDT.

How many hours of sunshine does Jeffersonville have in September?

In Jeffersonville, the average sunshine duration in September is 8.5h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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
Jeffersonville, IN

Average temperature in September - Jeffersonville, IN
  • Average high temperature in September: 79.5°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 (38.8°F).

  • Average low temperature in September: 60.1°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 (25.9°F).

Average pressure in September
Jeffersonville, IN

Average pressure in September - Jeffersonville, IN
  • 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
Jeffersonville, IN

Average wind speed in September - Jeffersonville, IN
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Jeffersonville, IN

Average humidity in September - Jeffersonville, IN
  • Average humidity in September: 74%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and October (73%).

Average rainfall in September
Jeffersonville, IN

Average rainfall in September - Jeffersonville, IN
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in September
Jeffersonville, IN

Average rainfall days in September - Jeffersonville, IN
  • Average rainfall days in September: 15.1 days

The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is November (11.9 days).

Average snowfall in September
Jeffersonville, IN

Average snowfall in September - Jeffersonville, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Jeffersonville, IN

Average snowfall days in September - Jeffersonville, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.3 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
Jeffersonville, IN

Average daylight in September / Average sunshine in September - Jeffersonville, IN
  • 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 months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).

Average sunshine days in September
Jeffersonville, IN

Average sunshine days in September - Jeffersonville, IN
  • Average sunshine days in September: 13 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is May (8.4 days).

Average UV index in September
Jeffersonville, IN

Average UV index in September - Jeffersonville, IN
  • 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
Jeffersonville, IN

Average cloud cover in September - Jeffersonville, IN
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Jeffersonville, IN

Average visibility in September - Jeffersonville, IN
  • Average visibility in September: 6mi

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

Jeffersonville, Indiana, USA

Weather forecast for your location

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