September weather forecast
Carefree, IN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Carefree, Indiana, with an average temperature ranging between min 59.9°F (15.5°C) and max 79.3°F (26.3°C).

Temperature

September sees a slight reduction in average high-temperature, with a shift from 85.6°F (29.8°C) in August to a still moderately hot 79.3°F (26.3°C). Throughout September, Carefree witnesses a nighttime temperature average of 59.9°F (15.5°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.61" (41mm) of precipitation.

Snowfall

January through April, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 26.8 snowfall days, and 7.91" (201mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 7:15 am and sunset at 8:14 pm. On the last day of September, sunrise is at 7:40 am and sunset at 7:29 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

Carefree in September has an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 59.9°F (15.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 96.8°F (36°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

What is the driest month in Carefree?

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.61" (41mm) of precipitation.

How much does it rain in September?

In September, the rain falls for 12.5 days. Throughout September, 1.61" (41mm) of precipitation is accumulated.

When does it start to snow?

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September?

In Carefree, 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 7:15 am and sunset at 8:14 pm. On the last day of the month, in Carefree, sunrise is at 7:40 am and sunset at 7:29 pm EDT.

How long on average sun shines in September in Carefree?

In September, the average sunshine duration is 8.4h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. 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
Carefree, IN

Average temperature in September - Carefree, IN
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in September
Carefree, IN

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Carefree, IN

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

The windiest months (with the highest average wind speed) are January and February (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September
Carefree, IN

Average humidity in September - Carefree, IN
  • Average humidity in September: 75%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Carefree, IN

Average rainfall in September - Carefree, IN
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in September
Carefree, IN

Average rainfall days in September - Carefree, IN
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (9.8 days).

Average snowfall in September
Carefree, IN

Average snowfall in September - Carefree, IN
  • Average snowfall in September: 0.04"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in September
Carefree, IN

Average snowfall days in September - Carefree, IN
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Carefree, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in September
Carefree, IN

Average sunshine days in September - Carefree, IN
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in September
Carefree, IN

Average UV index in September - Carefree, IN
  • Average UV index in September: 5

The months with the highest UV index are May, 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
Carefree, IN

Average cloud cover in September - Carefree, 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 29).

Average visibility in September
Carefree, IN

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

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

Carefree, Indiana, USA

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