September weather forecast
Denver, IN

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Weather in September

September, the first month of the autumn in Denver, is still a warm month, with an average temperature fluctuating between 74.3°F (23.5°C) and 55.9°F (13.3°C).

Temperature

The arrival of September sees an average high-temperature of a still moderately hot 74.3°F (23.5°C), hardly diverging from August's 79.2°F (26.2°C). In Denver, September nights witness a steady temperature drop to a mild 55.9°F (13.3°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Denver, in September, during 12.9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, in Denver, Indiana, there are 157.1 rainfall days, and 23.27" (591mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Denver, the average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 7:11 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:27 pm EDT.

Sunshine

The average sunshine in September in Denver, Indiana, is 8.1h.

UV index

In Denver, Indiana, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What are the temperatures in Denver in September?

In Denver, in September, the average high-temperature is 74.3°F (23.5°C), and the average low-temperature is 55.9°F (13.3°C).

What is the average humidity in September in Denver?

In September, the average relative humidity in Denver is 79%.

How much does it rain in Denver in September?

In Denver, Indiana, in September, it is raining for 12.9 days, with typically 1.38" (35mm) of accumulated precipitation.

When it does not snow in Denver?

June through September are months without snowfall in Denver.

Does it snow in Denver in September?

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

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

In September, the average day length is 12h and 27min.

When are sunrise and sunset in September in Denver?

In September, on the first day of the month, sunrise is at 7:11 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:27 pm EDT.

How long on average sun shines in September in Denver?

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

What is the UV index intensity in September in Denver?

In Denver, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Denver, IN

Average temperature in September - Denver, IN
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 55.9°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure in September
Denver, IN

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

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

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Average wind speed in September
Denver, IN

Average wind speed in September - Denver, IN
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in September
Denver, IN

Average humidity in September - Denver, IN
  • Average humidity in September: 79%

The months with the highest relative humidity are January, February, July, August and December (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Denver, IN

Average rainfall in September - Denver, IN
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.22").

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Average rainfall days in September
Denver, IN

Average rainfall days in September - Denver, IN
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (7 days).

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Average snowfall in September
Denver, IN

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

The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Denver, IN

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

The month with the highest number of snowfall days is January (13.6 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
Denver, IN

Average daylight in September / Average sunshine in September - Denver, 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 18min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in September
Denver, IN

Average sunshine days in September - Denver, IN
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is May (9.6 days).

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Average UV index in September
Denver, IN

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

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
Denver, IN

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

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in September
Denver, IN

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

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

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Denver, Indiana, USA

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