September weather forecast
Montgomery, IN

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Weather in September

September, the first month of the autumn in Montgomery, is also a moderately hot month, with an average temperature ranging between min 60.1°F (15.6°C) and max 78.6°F (25.9°C).

Temperature

The arrival of September brings an average high-temperature of a still moderately hot 78.6°F (25.9°C), subtly diverging from August's 83.5°F (28.6°C). In September, the temperature in Montgomery, Indiana, drops to an average of 60.1°F (15.6°C) at night.

Humidity

In Montgomery, the average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.61" (41mm) of precipitation.

Snowfall

In Montgomery, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 7:18 am and sunset at 8:17 pm. On the last day of September, in Montgomery, sunrise is at 7:43 am and sunset at 7:32 pm EDT.

Sunshine

The average sunshine in September in Montgomery, Indiana, is 8.6h.

UV index

In Montgomery, 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: The maximum daily UV index of 5 during September translates into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. When the Sun is at its strongest around midday, find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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 Montgomery?

In Montgomery, 78.6°F (25.9°C) is the average high-temperature and 60.1°F (15.6°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in August is appraised at 91.4°F (33°C).

What is the average humidity in September in Montgomery?

In Montgomery, the average relative humidity in September is 74%.

What is the driest month in Montgomery?

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.61" (41mm) of precipitation.

How many days does it rain in September in Montgomery?

In Montgomery, during September, the rain falls for 11.5 days and regularly aggregates up to 1.61" (41mm) of precipitation.

When it does not snow in Montgomery?

May through October are months without snowfall in Montgomery, Indiana.

How many hours of daylight does Montgomery have in September?

In Montgomery, Indiana, the average day length in September is 12h and 25min.

What time are sunrise and sunset in September in Montgomery?

In September, on the first day of the month, sunrise is at 7:18 am and sunset at 8:17 pm. On the last day of the month, in Montgomery, sunrise is at 7:43 am and sunset at 7:32 pm EDT.

How long on average sun shines in September in Montgomery?

In September, the average sunshine duration is 8.6h.

What is the UV index intensity in September in Montgomery?

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

Average temperature in September - Montgomery, IN
  • Average high temperature in September: 78.6°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in September: 60.1°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

Average pressure in September
Montgomery, IN

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Montgomery, IN

Average wind speed in September - Montgomery, IN
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in September
Montgomery, IN

Average humidity in September - Montgomery, IN
  • Average humidity in September: 74%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Montgomery, IN

Average rainfall in September - Montgomery, IN
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in September
Montgomery, IN

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

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in September
Montgomery, IN

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

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Montgomery, IN

Average snowfall days in September - Montgomery, IN
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Montgomery, IN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).

Average sunshine days in September
Montgomery, IN

Average sunshine days in September - Montgomery, IN
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is May (10.5 days).

Average UV index in September
Montgomery, IN

Average UV index in September - Montgomery, 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
Montgomery, IN

Average cloud cover in September - Montgomery, IN
  • Average cloud cover in September: 30

The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Montgomery, IN

Average visibility in September - Montgomery, 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).

Montgomery, Indiana, USA

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