September weather forecast
Boone Grove, IN

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Weather in September

September, the first month of the autumn in Boone Grove, is still a warm month, with an average temperature ranging between max 74.1°F (23.4°C) and min 57°F (13.9°C).

Temperature

Upon the onset of September, Boone Grove witnesses an average high-temperature of a still warm 74.1°F (23.4°C), showing a close resemblance to the prior month. Boone Grove records a mean low-temperature of 57°F (13.9°C) in September.

Humidity

The average relative humidity in September is 78%.

Rainfall

In Boone Grove, during September, the rain falls for 12.8 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Boone Grove, during the entire year, the rain falls for 151.5 days and collects up to 21.18" (538mm) of precipitation.

Snowfall

In Boone Grove, Indiana, snow does not fall in June through October.

Daylight

In September, the average length of the day in Boone Grove is 12h and 28min.
On the first day of the month, sunrise is at 6:15 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:31 pm CDT.

Sunshine

In September, the average sunshine in Boone Grove is 8.5h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Boone Grove in September?

The average high-temperature and low-temperature in Boone Grove, Indiana, during September are 74.1°F (23.4°C) and 57°F (13.9°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in July is appraised at 86°F (30°C).

What is the average humidity in September in Boone Grove?

In Boone Grove, the average relative humidity in September is 78%.

How much does it rain in Boone Grove in September?

In Boone Grove, during September, the rain falls for 12.8 days and regularly aggregates up to 1.34" (34mm) of precipitation.

When it does not snow in Boone Grove?

In Boone Grove, snow does not fall in June through October.

What is the average length of the day in September in Boone Grove?

In September, the average day length in Boone Grove, Indiana, is 12h and 28min.

When are sunrise and sunset in September in Boone Grove?

In September, on the first day of the month, sunrise is at 6:15 am and sunset at 7:20 pm. On the last day of the month, in Boone Grove, sunrise is at 6:45 am and sunset at 6:31 pm CDT.

How long on average sun shines in September in Boone Grove?

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

How high is the UV index in September in Boone Grove?

In September, the average daily maximum UV index in Boone Grove, Indiana, 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
Boone Grove, IN

Average temperature in September - Boone Grove, IN
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in September: 57°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in September
Boone Grove, IN

Average pressure in September - Boone Grove, 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).

Average wind speed in September
Boone Grove, IN

Average wind speed in September - Boone Grove, IN
  • Average wind speed in September: 7.2mph

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).

Average humidity in September
Boone Grove, IN

Average humidity in September - Boone Grove, IN
  • Average humidity in September: 78%

The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Boone Grove, IN

Average rainfall in September - Boone Grove, IN
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is February (1.02").

Average rainfall days in September
Boone Grove, IN

Average rainfall days in September - Boone Grove, IN
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in September
Boone Grove, IN

Average snowfall in September - Boone Grove, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.03").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Boone Grove, IN

Average snowfall days in September - Boone Grove, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Boone Grove, IN

Average daylight in September / Average sunshine in September - Boone Grove, 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: 8h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in September
Boone Grove, IN

Average sunshine days in September - Boone Grove, IN
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (10 days).

Average UV index in September
Boone Grove, IN

Average UV index in September - Boone Grove, 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).

Average cloud cover in September
Boone Grove, IN

Average cloud cover in September - Boone Grove, IN
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Boone Grove, IN

Average visibility in September - Boone Grove, IN
  • Average visibility in September: 6mi

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

Boone Grove, Indiana, USA

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