September weather forecast
Rossville, IN

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Weather in September

The first month of the autumn, September, is still a warm month in Rossville, Indiana, with an average temperature fluctuating between 75°F (23.9°C) and 56.8°F (13.8°C).

Temperature

Rossville in September witnesses an average high-temperature of a still warm 75°F (23.9°C), indicating a slight variation from August's 79.9°F (26.6°C). The average nighttime temperature lowers to a mild 56.8°F (13.8°C) throughout September.

Humidity

The average relative humidity in September is 78%.

Rainfall

In Rossville, Indiana, in September, during 10.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, there are 138.9 rainfall days, and 19.06" (484mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Rossville.

Daylight

In Rossville, Indiana, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 7:14 am and sunset at 8:17 pm. On the last day of September, sunrise is at 7:42 am and sunset at 7:29 pm EDT.

Sunshine

The average sunshine in September in Rossville is 8.2h.

UV index

In September, the average daily maximum UV index in Rossville is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What is the average September temperature in Rossville?

The average high-temperature and low-temperature in Rossville, Indiana, during September are 75°F (23.9°C) and 56.8°F (13.8°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in July is calculated to be 87.8°F (31°C).

What is the average humidity in September in Rossville?

In September, the average relative humidity is 78%.

How many days does it rain in September in Rossville?

In Rossville, in September, during 10.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

When it does not snow in Rossville?

In Rossville, Indiana, snow does not fall in May through September.

Does it snow in Rossville in September?

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

What is the average length of the day in September in Rossville?

In September, the average day length in Rossville, Indiana, is 12h and 27min.

What time are sunrise and sunset in September in Rossville?

On the first day of September, sunrise is at 7:14 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:29 pm EDT.

How many hours of sunshine does Rossville have in September?

In Rossville, the average sunshine duration in September is 8.2h.

How high is the UV index in September in Rossville?

In Rossville, Indiana, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Rossville, IN

Average temperature in September - Rossville, IN
  • Average high temperature in September: 75°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in September: 56.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure in September
Rossville, IN

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Rossville, IN

Average wind speed in September - Rossville, IN
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in September
Rossville, IN

Average humidity in September - Rossville, IN
  • Average humidity in September: 78%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Rossville, IN

Average rainfall in September - Rossville, IN
  • Average rainfall in September: 1.22"

The wettest months (with the highest rainfall) are April and May (2.28").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days in September
Rossville, IN

Average rainfall days in September - Rossville, IN
  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in September
Rossville, IN

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

The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Rossville, IN

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

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Rossville, IN

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in September
Rossville, IN

Average sunshine days in September - Rossville, IN
  • Average sunshine days in September: 16 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index in September
Rossville, IN

Average UV index in September - Rossville, IN
  • Average UV index in September: 4

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, October, November and December (UV index 2).

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Average cloud cover in September
Rossville, IN

Average cloud cover in September - Rossville, IN
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 33).

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Average visibility in September
Rossville, IN

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

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

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Rossville, Indiana, USA

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