September weather forecast
Logan, IN

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Weather in September

September, the first month of the autumn in Logan, is still a warm month, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 58.5°F (14.7°C).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from a moderately hot 84.2°F (29°C) in August to a still warm 78.3°F (25.7°C). In September, Logan reports a consistent average low-temperature of 58.5°F (14.7°C) during the nights.

Humidity

The average relative humidity in September is 76%.

Rainfall

The month with the least rainfall in Logan is September, when the rain falls for 11.2 days and typically collects 0.91" (23mm) of precipitation.

Snowfall

May through October are months without snowfall in Logan.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 7:15 am and sunset at 8:15 pm. On the last day of September, in Logan, sunrise is at 7:41 am and sunset at 7:29 pm EDT.

Sunshine

The average sunshine in September is 8.3h.

UV index

In Logan, Indiana, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Logan in September?

The high-temperature in Logan during September is 78.3°F (25.7°C) and the low-temperature is 58.5°F (14.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 93.2°F (34°C).

What is the average humidity in September in Logan?

The average relative humidity in September is 76%.

What is the driest month in Logan?

September is the month with the least rainfall in Logan. Rain falls for 11.2 days and accumulates 0.91" (23mm) of precipitation.

How much does it rain in Logan in September?

In Logan, Indiana, in September, it is raining for 11.2 days, with typically 0.91" (23mm) of accumulated precipitation.

When it does not snow in Logan?

In Logan, Indiana, snow does not fall in May through October.

How many hours of daylight does Logan have in September?

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

When is the sunrise / sunset in September in Logan?

On the first day of September in Logan, Indiana, sunrise is at 7:15 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:29 pm EDT.

How long on average sun shines in September in Logan?

In September, the average sunshine duration is 8.3h.

What is the UV index reading in September in Logan?

In September, the average daily maximum UV index in Logan, Indiana, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from 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
Logan, IN

Average temperature in September - Logan, IN
  • Average high temperature in September: 78.3°F

The warmest month (with the highest average high temperature) is July (85.1°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 (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in September
Logan, IN

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Logan, IN

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

The windiest months (with the highest average wind speed) are January, February and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

Average humidity in September
Logan, IN

Average humidity in September - Logan, IN
  • Average humidity in September: 76%

The months with the highest relative humidity are February, May and December (81%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September
Logan, IN

Average rainfall in September - Logan, IN
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in September
Logan, IN

Average rainfall days in September - Logan, IN
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in September
Logan, IN

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

The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Logan, IN

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

The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Logan, 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 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in September
Logan, IN

Average sunshine days in September - Logan, IN
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in September
Logan, IN

Average UV index in September - Logan, 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).

Average cloud cover in September
Logan, IN

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

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Logan, IN

Average visibility in September - Logan, IN
  • Average visibility in September: 5mi

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

Logan, Indiana, USA

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