September weather forecast
Downey Corner, IN

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Downey Corner, Indiana, with an average temperature varying between 58.5°F (14.7°C) and 77.9°F (25.5°C).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 84.2°F (29°C) to a still warm 77.9°F (25.5°C). An average low-temperature of 58.5°F (14.7°C) is observed during September nights in Downey Corner.

Humidity

The average relative humidity in September is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.73" (44mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 7:09 am and sunset at 8:10 pm. On the last day of September, in Downey Corner, sunrise is at 7:35 am and sunset at 7:23 pm EDT.

Sunshine

In Downey Corner, the average sunshine in September is 8.2h.

UV index

In Downey Corner, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What are the temperatures in Downey Corner in September?

In September, in Downey Corner, the average high-temperature is 77.9°F (25.5°C), and the average low-temperature is 58.5°F (14.7°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 93.2°F (34°C).

What is the average humidity in September in Downey Corner?

In September, the average relative humidity in Downey Corner, Indiana, is 75%.

What is the driest month in Downey Corner?

The month with the least rainfall in Downey Corner is September, when the rain falls for 13.4 days and typically collects 1.73" (44mm) of precipitation.

How many days does it rain in September in Downey Corner?

In September, in Downey Corner, Indiana, the rain falls for 13.4 days. Throughout September, 1.73" (44mm) of precipitation is accumulated.

When it does not snow in Downey Corner?

May through October are months without snowfall.

How many hours of daylight does Downey Corner have in September?

The average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Downey Corner?

On the first day of September, sunrise is at 7:09 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:23 pm EDT.

How long on average sun shines in September in Downey Corner?

In Downey Corner, Indiana, the average sunshine duration in September is 8.2h.

How high is the UV index in September in Downey Corner?

In September, the average daily maximum UV index in Downey Corner is 5. A UV Index estimate 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
Downey Corner, IN

Average temperature in September - Downey Corner, IN
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

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Average pressure in September
Downey Corner, IN

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

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Downey Corner, IN

Average wind speed in September - Downey Corner, IN
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in September
Downey Corner, IN

Average humidity in September - Downey Corner, IN
  • Average humidity in September: 75%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Downey Corner, IN

Average rainfall in September - Downey Corner, IN
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in September
Downey Corner, IN

Average rainfall days in September - Downey Corner, IN
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (9.7 days).

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Average snowfall in September
Downey Corner, IN

Average snowfall in September - Downey Corner, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Downey Corner, IN

Average snowfall days in September - Downey Corner, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.8 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
Downey Corner, IN

Average daylight in September / Average sunshine in September - Downey Corner, 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 30min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in September
Downey Corner, IN

Average sunshine days in September - Downey Corner, IN
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is May (10.4 days).

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Average UV index in September
Downey Corner, IN

Average UV index in September - Downey Corner, IN
  • Average UV index in September: 5

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, November and December (UV index 2).

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Average cloud cover in September
Downey Corner, IN

Average cloud cover in September - Downey Corner, IN
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Downey Corner, IN

Average visibility in September - Downey Corner, IN
  • Average visibility in September: 6mi

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

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Downey Corner, Indiana, USA

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