September weather forecast
Darlington, IN

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Weather in September

The first month of the autumn, September, is still a warm month in Darlington, Indiana, with an average temperature varying between 57.4°F (14.1°C) and 75.4°F (24.1°C).

Temperature

The average high-temperature for September is a still warm 75.4°F (24.1°C), closely aligning with the temperature of the preceding month. September nights in Darlington are marked by an average low-temperature of 57.4°F (14.1°C).

Humidity

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

Rainfall

In September, the rain falls for 11.5 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, in Darlington, Indiana, there are 144.1 rainfall days, and 22.17" (563mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Darlington.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 7:15 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 7:30 pm EDT.

Sunshine

The average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index in Darlington, Indiana, is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 in September translates into these instructions:
Heed the precautions - Suggestions to avoid sunburn are made. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What is the temperature in September in Darlington?

Darlington in September has an average high-temperature of 75.4°F (24.1°C) and an average low-temperature of 57.4°F (14.1°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 87.8°F (31°C).

What is the average humidity in September in Darlington?

The average relative humidity in September in Darlington, Indiana, is 78%.

How much does it rain in Darlington in September?

In Darlington, Indiana, during September, the rain falls for 11.5 days and regularly aggregates up to 1.34" (34mm) of precipitation.

When it does not snow in Darlington?

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

Does it snow in Darlington in September?

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

How many hours of daylight does Darlington have in September?

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

When is the sunrise / sunset in September in Darlington?

In September, on the first day of the month, sunrise is at 7:15 am and sunset at 8:18 pm. On the last day of the month, in Darlington, sunrise is at 7:43 am and sunset at 7:30 pm EDT.

How long on average sun shines in September in Darlington?

In September, the average sunshine duration in Darlington is 8.2h.

What is the UV index intensity in September in Darlington?

In September, the average daily maximum UV index in Darlington is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe 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
Darlington, IN

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

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in September
Darlington, IN

Average pressure in September - Darlington, 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
Darlington, IN

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

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

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Average humidity in September
Darlington, IN

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Darlington, IN

Average rainfall in September - Darlington, IN
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is February (1.26").

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Average rainfall days in September
Darlington, IN

Average rainfall days in September - Darlington, IN
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (19.1 days).
The months with the least rainy days are January and February (6.8 days).

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Average snowfall in September
Darlington, IN

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

The month with the highest snowfall is February (2.36").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Darlington, IN

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

The month with the highest number of snowfall days is January (8.6 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
Darlington, IN

Average daylight in September / Average sunshine in September - Darlington, 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 24min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in September
Darlington, IN

Average sunshine days in September - Darlington, IN
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (10.1 days).

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Average UV index in September
Darlington, IN

Average UV index in September - Darlington, 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, October, November and December (UV index 2).

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Average cloud cover in September
Darlington, IN

Average cloud cover in September - Darlington, IN
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in September
Darlington, IN

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

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