September weather forecast
North Vernon, IN

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Weather in September

The first month of the autumn, September, is still a warm month in North Vernon, Indiana, with an average temperature fluctuating between 77.5°F (25.3°C) and 58.3°F (14.6°C).

Temperature

With the onset of September, North Vernon experiences a modest temperature adjustment, with the average high-temperature gently receding from 83.5°F (28.6°C) in August to a still moderately hot 77.5°F (25.3°C). Throughout September, the nighttime temperature in North Vernon averages to a mild 58.3°F (14.6°C).

Humidity

In September, the average relative humidity is 76%.

Rainfall

The month with the least rainfall in North Vernon is September, when the rain falls for 12.3 days and typically collects 1.61" (41mm) of precipitation.

Snowfall

In North Vernon, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 7:12 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 North Vernon, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September in North Vernon is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in North Vernon?

North Vernon in September has an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 58.3°F (14.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is calculated to be 91.4°F (33°C).

What is the average humidity in September in North Vernon?

In September, the average relative humidity in North Vernon, Indiana, is 76%.

What is the driest month in North Vernon?

September is the month with the least rainfall in North Vernon. Rain falls for 12.3 days and accumulates 1.61" (41mm) of precipitation.

How much does it rain in North Vernon in September?

In North Vernon, in September, it is raining for 12.3 days, with typically 1.61" (41mm) of accumulated precipitation.

When it does not snow in North Vernon?

May through September are months without snowfall in North Vernon, Indiana.

Does it snow in North Vernon in September?

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

How many hours of daylight does North Vernon have in September?

In September, the average day length is 12h and 26min.

What time are sunrise and sunset in September in North Vernon?

On the first day of September, sunrise is at 7:12 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.

How many hours of sunshine does North Vernon have in September?

In September, the average sunshine duration in North Vernon is 8.3h.

How high is the UV index in September in North Vernon?

The average daily maximum UV index in September in North Vernon is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
North Vernon, IN

Average temperature in September - North Vernon, IN
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in September
North Vernon, IN

Average pressure in September - North Vernon, IN
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
North Vernon, IN

Average wind speed in September - North Vernon, IN
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are January, February and April (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in September
North Vernon, IN

Average humidity in September - North Vernon, IN
  • Average humidity in September: 76%

The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
North Vernon, IN

Average rainfall in September - North Vernon, IN
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in September
North Vernon, IN

Average rainfall days in September - North Vernon, IN
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (9 days).

Average snowfall in September
North Vernon, IN

Average snowfall in September - North Vernon, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
North Vernon, IN

Average snowfall days in September - North Vernon, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.3 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
North Vernon, IN

Average daylight in September / Average sunshine in September - North Vernon, IN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
North Vernon, IN

Average sunshine days in September - North Vernon, IN
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (9.9 days).

Average UV index in September
North Vernon, IN

Average UV index in September - North Vernon, 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
North Vernon, IN

Average cloud cover in September - North Vernon, IN
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
North Vernon, IN

Average visibility in September - North Vernon, IN
  • Average visibility in September: 5mi

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

North Vernon, Indiana, USA

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