September weather forecast
Mooresville, IN

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Weather in September

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

Temperature

As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from 81.7°F (27.6°C) to a still warm 75.9°F (24.4°C). During the month of September, Mooresville anticipates a mean low-temperature of 57.9°F (14.4°C).

Humidity

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

Rainfall

September is the month with the least rainfall in Mooresville. Rain falls for 13.5 days and accumulates 2.2" (56mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in Mooresville, Indiana, is 12h and 26min.
On the first day of the month, sunrise is at 7:14 am and sunset at 8:16 pm. On the last day of September, in Mooresville, sunrise is at 7:41 am and sunset at 7:29 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September in Mooresville, Indiana, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 4 in September translates into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Around midday, solar radiation is most harmful; hence, exposure should be limited. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the average September temperature in Mooresville?

The average high-temperature, in September, in Mooresville, is 75.9°F (24.4°C), while the average low-temperature is 57.9°F (14.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in September in Mooresville?

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

What is the driest month in Mooresville?

September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 2.2" (56mm) of precipitation.

How much does it rain in Mooresville in September?

In Mooresville, Indiana, in September, during 13.5 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

When it does not snow in Mooresville?

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

Does it snow in Mooresville in September?

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

How many hours of daylight does Mooresville have in September?

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

What time are sunrise and sunset in September in Mooresville?

On the first day of September, sunrise is at 7:14 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:29 pm EDT.

How many hours of sunshine does Mooresville have in September?

In September, the average sunshine duration in Mooresville is 8.4h.

How high is the UV index in September in Mooresville?

In Mooresville, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk 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
Mooresville, IN

Average temperature in September - Mooresville, 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
Mooresville, IN

Average pressure in September - Mooresville, 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
Mooresville, IN

Average wind speed in September - Mooresville, 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
Mooresville, IN

Average humidity in September - Mooresville, 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
Mooresville, IN

Average rainfall in September - Mooresville, 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
Mooresville, IN

Average rainfall days in September - Mooresville, 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
Mooresville, IN

Average snowfall in September - Mooresville, 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
Mooresville, IN

Average snowfall days in September - Mooresville, 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
Mooresville, IN

Average daylight in September / Average sunshine in September - Mooresville, 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
Mooresville, IN

Average sunshine days in September - Mooresville, 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
Mooresville, IN

Average UV index in September - Mooresville, 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
Mooresville, IN

Average cloud cover in September - Mooresville, 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
Mooresville, IN

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

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