September weather forecast
Grovertown, IN

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Weather in September

The first month of the autumn, September, is still a warm month in Grovertown, Indiana, with an average temperature varying between 55.2°F (12.9°C) and 73.4°F (23°C).

Temperature

The start of September sees the average high-temperature at a still moderately hot 73.4°F (23°C), showing little difference from August's 78.6°F (25.9°C). The average low-temperature of 55.2°F (12.9°C) is witnessed during September.

Humidity

In September, the average relative humidity in Grovertown is 80%.

Rainfall

In Grovertown, in September, it is raining for 12.1 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 138.6 rainfall days, and 18.43" (468mm) of precipitation is accumulated.

Snowfall

In Grovertown, Indiana, snow does not fall in June through September.

Daylight

The average length of the day in September in Grovertown is 12h and 28min.
On the first day of the month, sunrise is at 6:13 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:29 pm CDT.

Sunshine

In Grovertown, the average sunshine in September is 7.9h.

UV index

In September, the average daily maximum UV index in Grovertown, Indiana, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What are September temperatures in Grovertown?

In September, the average high-temperature and low-temperature in Grovertown, Indiana, are 73.4°F (23°C) and 55.2°F (12.9°C) respectively.

What is the average humidity in September in Grovertown?

In September, the average relative humidity in Grovertown, Indiana, is 80%.

How many days does it rain in September in Grovertown?

In Grovertown, in September, during 12.1 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

When it does not snow in Grovertown?

In Grovertown, snow does not fall in June through September.

Does it snow in Grovertown in September?

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

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

The average day length in September is 12h and 28min.

When are sunrise and sunset in September in Grovertown?

On the first day of September in Grovertown, Indiana, sunrise is at 6:13 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:29 pm CDT.

How many hours of sunshine does Grovertown have in September?

In September, the average sunshine duration in Grovertown is 7.9h.

What is the UV index reading in September in Grovertown?

The average daily maximum UV index in September in Grovertown, Indiana, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Grovertown, IN

Average temperature in September - Grovertown, IN
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 55.2°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in September
Grovertown, IN

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Grovertown, IN

Average wind speed in September - Grovertown, IN
  • Average wind speed in September: 7.1mph

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

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Average humidity in September
Grovertown, IN

Average humidity in September - Grovertown, IN
  • Average humidity in September: 80%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in September
Grovertown, IN

Average rainfall in September - Grovertown, IN
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is June (2.68").
The driest months (with the least rainfall) are January, February and December (0.91").

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Average rainfall days in September
Grovertown, IN

Average rainfall days in September - Grovertown, IN
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (4.9 days).

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Average snowfall in September
Grovertown, IN

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

The month with the highest snowfall is January (2.91").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Grovertown, IN

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

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Grovertown, IN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in September
Grovertown, IN

Average sunshine days in September - Grovertown, IN
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is February (11.3 days).

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Average UV index in September
Grovertown, IN

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Grovertown, IN

Average cloud cover in September - Grovertown, IN
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 35).

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Average visibility in September
Grovertown, IN

Average visibility in September - Grovertown, IN
  • Average visibility in September: 5mi

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

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Grovertown, Indiana, USA

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