September weather forecast
McCordsville, IN

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Weather in September

The first month of the autumn, September, is still a warm month in McCordsville, Indiana, with temperature in the range of an average low of 57.6°F (14.2°C) and an average high of 75.4°F (24.1°C).

Temperature

September's onset records an average high-temperature of a still warm 75.4°F (24.1°C), a near match to August's 80.2°F (26.8°C). McCordsville usually reports an average low-temperature of 57.6°F (14.2°C) during the month of September.

Humidity

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

Rainfall

In McCordsville, Indiana, in September, it is raining for 12.6 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 141 rainfall days, and 20.98" (533mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in McCordsville.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 7:12 am and sunset at 8:14 pm. On the last day of September, in McCordsville, Indiana, sunrise is at 7:39 am and sunset at 7:27 pm EDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In McCordsville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in McCordsville?

The high-temperature, in September, in McCordsville, is 75.4°F (24.1°C), while the low-temperature averages to 57.6°F (14.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in September in McCordsville?

The average relative humidity in September in McCordsville is 77%.

How much does it rain in McCordsville in September?

In September, in McCordsville, Indiana, the rain falls for 12.6 days. Throughout September, 1.54" (39mm) of precipitation is accumulated.

When it does not snow in McCordsville?

In McCordsville, Indiana, snow does not fall in May through September.

Does it snow in McCordsville in September?

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

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

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

When are sunrise and sunset in September in McCordsville?

In September, on the first day of the month, sunrise is at 7:12 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:27 pm EDT.

How long on average sun shines in September in McCordsville?

In September, the average sunshine duration is 8.2h.

What is the UV index intensity in September in McCordsville?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes 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
McCordsville, IN

Average temperature in September - McCordsville, 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).

Average pressure in September
McCordsville, IN

Average pressure in September - McCordsville, 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).

Average wind speed in September
McCordsville, IN

Average wind speed in September - McCordsville, 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).

Average humidity in September
McCordsville, IN

Average humidity in September - McCordsville, 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%).

Average rainfall in September
McCordsville, IN

Average rainfall in September - McCordsville, 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").

Average rainfall days in September
McCordsville, IN

Average rainfall days in September - McCordsville, 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).

Average snowfall in September
McCordsville, IN

Average snowfall in September - McCordsville, 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").

Average snowfall days in September
McCordsville, IN

Average snowfall days in September - McCordsville, 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).

Average daylight in September /
Average sunshine in September
McCordsville, IN

Average daylight in September / Average sunshine in September - McCordsville, 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).

Average sunshine days in September
McCordsville, IN

Average sunshine days in September - McCordsville, 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).

Average UV index in September
McCordsville, IN

Average UV index in September - McCordsville, 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).

Average cloud cover in September
McCordsville, IN

Average cloud cover in September - McCordsville, 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).

Average visibility in September
McCordsville, IN

Average visibility in September - McCordsville, 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).

McCordsville, Indiana, USA

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