September weather forecast
Bluffs, IN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Bluffs, Indiana, with an average temperature fluctuating between 57.9°F (14.4°C) and 75.9°F (24.4°C).

Temperature

September's arrival subtly correlates with a reduction in the average high-temperature, down from 81.7°F (27.6°C) in August to a still moderately hot 75.9°F (24.4°C). During September, Bluffs observes a consistent average nighttime temperature of 57.9°F (14.4°C).

Humidity

The average relative humidity in September in Bluffs is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 2.2" (56mm) of precipitation.

Snowfall

In Bluffs, snow does not fall in May through September.

Daylight

In September, the average length of the day in Bluffs is 12h and 26min.
On the first day of the month, sunrise is at 7:13 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:40 am and sunset at 7:28 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In Bluffs, Indiana, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What are the temperatures in Bluffs in September?

An average high-temperature, in September, in Bluffs, is 75.9°F (24.4°C) and the average low-temperature is 57.9°F (14.4°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Bluffs?

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

What is the driest month in Bluffs?

The month with the least rainfall in Bluffs is September, when the rain falls for 13.5 days and typically collects 2.2" (56mm) of precipitation.

How much does it rain in Bluffs in September?

In Bluffs, during September, the rain falls for 13.5 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in Bluffs?

In Bluffs, snow does not fall in May through September.

Does it snow in Bluffs in September?

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

How many hours of daylight does Bluffs have in September?

In Bluffs, the average day length in September is 12h and 26min.

What time are sunrise and sunset in September in Bluffs?

In September, on the first day of the month, sunrise is at 7:13 am and sunset at 8:15 pm. On the last day of the month, in Bluffs, Indiana, sunrise is at 7:40 am and sunset at 7:28 pm EDT.

How many hours of sunshine does Bluffs have in September?

In September, the average sunshine duration is 8.4h.

What is the UV index intensity in September in Bluffs?

In Bluffs, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
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
Bluffs, IN

Average temperature in September - Bluffs, IN
  • Average high temperature in September: 75.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in September: 57.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in September
Bluffs, IN

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Bluffs, IN

Average wind speed in September - Bluffs, IN
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in September
Bluffs, IN

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Bluffs, IN

Average rainfall in September - Bluffs, IN
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.2").

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Average rainfall days in September
Bluffs, IN

Average rainfall days in September - Bluffs, IN
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in September
Bluffs, IN

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

The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Bluffs, IN

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

The month with the highest number of snowfall days is January (9.6 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
Bluffs, IN

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in September
Bluffs, IN

Average sunshine days in September - Bluffs, IN
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is May (8.4 days).

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Average UV index in September
Bluffs, IN

Average UV index in September - Bluffs, 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
Bluffs, IN

Average cloud cover in September - Bluffs, IN
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Bluffs, IN

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

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

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Bluffs, Indiana, USA

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