September weather forecast
Fishers, IN

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Weather in September

September in Fishers, Indiana, sees a sizeable reduction in temperature, fluctuating between 57.6°F (14.2°C) to 75.4°F (24.1°C). With the arrival of September, the city transitions fully into fall, with the weather getting more relaxed and the leaves starting to change their colors. The beautiful autumn season makes the cityscape look like an artist's palette featuring vivid shades of red, orange, and yellow. Outdoor events and festivals are common during this month due to the pleasant weather. One can easily spend the day exploring the charming city without worrying about the summer heat or the winter cold.

Temperature

The arrival of September denotes a barely perceptible change in the average high-temperatures to a still moderately hot 75.4°F (24.1°C) from August's 80.2°F (26.8°C). During September nights, Fishers records an average temperature of 57.6°F (14.2°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

In Fishers, in September, during 12.6 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, there are 141 rainfall days, and 20.98" (533mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 7:12 am and sunset at 8:15 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 is 8.2h.

UV index

In Fishers, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, a regular UV index of 5 translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What is the average September temperature in Fishers?

September temperatures in Fishers vary between a high-temperature of 75.4°F (24.1°C) and a low-temperature of 57.6°F (14.2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 87.8°F (31°C).

What is the average humidity in September in Fishers?

In Fishers, the average relative humidity in September is 77%.

How many days does it rain in September in Fishers?

In Fishers, Indiana, in September, during 12.6 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

When it does not snow in Fishers?

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

Does it snow in Fishers in September?

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

How many hours of daylight does Fishers have in September?

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

When is the sunrise / sunset in September in Fishers?

In September, on the first day of the month, sunrise is at 7:12 am and sunset at 8:15 pm. On the last day of the month, in Fishers, Indiana, sunrise is at 7:40 am and sunset at 7:27 pm EDT.

How long on average sun shines in September in Fishers?

In September, the average sunshine duration is 8.2h.

What is the UV index reading in September in Fishers?

In Fishers, the average daily maximum UV index in September is 5. A UV Index reading 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
Fishers, IN

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

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 57.6°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 (20.7°F).

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Average pressure in September
Fishers, IN

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

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Fishers, IN

Average wind speed in September - Fishers, IN
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in September
Fishers, IN

Average humidity in September - Fishers, IN
  • Average humidity in September: 77%

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

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Average rainfall in September
Fishers, IN

Average rainfall in September - Fishers, IN
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is February (1.18").

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Average rainfall days in September
Fishers, IN

Average rainfall days in September - Fishers, IN
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6 days).

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Average snowfall in September
Fishers, IN

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

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Fishers, IN

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

The month with the highest number of snowfall days is January (8.5 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
Fishers, IN

Average daylight in September / Average sunshine in September - Fishers, 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 months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in September
Fishers, IN

Average sunshine days in September - Fishers, IN
  • Average sunshine days in September: 14.8 days

The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in September
Fishers, IN

Average UV index in September - Fishers, IN
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Fishers, IN

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

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in September
Fishers, IN

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

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

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Fishers, Indiana, USA

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