September weather forecast
Boswell, IN

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Weather in September

September, the first month of the autumn in Boswell, is still a warm month, with temperature in the range of an average low of 57°F (13.9°C) and an average high of 75.4°F (24.1°C).

Temperature

The transition into September is marked with an average high-temperature of a still warm 75.4°F (24.1°C), showing an insignificant shift from August's 79.9°F (26.6°C). In September, Boswell experiences a temperature dip to an average of 57°F (13.9°C) at night.

Humidity

The average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 11 days. Throughout September, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 141.9 rainfall days, and 18.07" (459mm) of precipitation is accumulated.

Snowfall

In Boswell, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 7:17 am and sunset at 8:21 pm. On the last day of September, sunrise is at 7:45 am and sunset at 7:32 pm EDT.

Sunshine

In Boswell, the average sunshine in September is 8.1h.

UV index

The average daily maximum UV index in September in Boswell is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions - Protection against sun damage is advised. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the average September temperature in Boswell?

In Boswell, in September, the average high-temperature is 75.4°F (24.1°C), and the average low-temperature is 57°F (13.9°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 87.8°F (31°C).

What is the average humidity in September in Boswell?

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

How many days does it rain in September in Boswell?

In Boswell, in September, during 11 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When it does not snow in Boswell?

May through October are months without snowfall.

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

The average day length in September in Boswell is 12h and 27min.

When is the sunrise / sunset in September in Boswell?

In September, on the first day of the month, sunrise is at 7:17 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 7:32 pm EDT.

How many hours of sunshine does Boswell have in September?

In Boswell, the average sunshine duration in September is 8.1h.

What is the UV index intensity in September in Boswell?

The average daily maximum UV index in September in Boswell, Indiana, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Boswell, IN

Average temperature in September - Boswell, IN
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in September: 57°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

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Average pressure in September
Boswell, IN

Average pressure in September - Boswell, 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
Boswell, IN

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

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 (6.3mph).

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Average humidity in September
Boswell, IN

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

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Boswell, IN

Average rainfall in September - Boswell, IN
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is February (0.79").

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Average rainfall days in September
Boswell, IN

Average rainfall days in September - Boswell, IN
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in September
Boswell, IN

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

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Boswell, IN

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

The month with the highest number of snowfall days is January (11 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
Boswell, IN

Average daylight in September / Average sunshine in September - Boswell, 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 months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in September
Boswell, IN

Average sunshine days in September - Boswell, IN
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in September
Boswell, IN

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

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

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Average cloud cover in September
Boswell, IN

Average cloud cover in September - Boswell, IN
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in September
Boswell, IN

Average visibility in September - Boswell, 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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Boswell, Indiana, USA

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