September weather forecast
Montgomery, OH

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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 varying between 77°F (25°C) and 58.3°F (14.6°C).

Temperature

Montgomery experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from 82.8°F (28.2°C) in August to a still moderately hot 77°F (25°C). Montgomery's nights in September experience an average temperature drop to a mild 58.3°F (14.6°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 7.8 days and typically collects 0.31" (8mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 7:06 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:21 pm EDT.

Sunshine

The average sunshine in September in Montgomery is 8.4h.

UV index

In Montgomery, Ohio, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 in September transforms into the following instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Montgomery in September?

An average high-temperature, in September, in Montgomery, is 77°F (25°C) and the average low-temperature is 58.3°F (14.6°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is evaluated at 89.6°F (32°C).

What is the average humidity in September in Montgomery?

In Montgomery, Ohio, the average relative humidity in September is 75%.

What is the driest month in Montgomery?

The month with the least rainfall in Montgomery, Ohio, is September, when the rain falls for 7.8 days and typically collects 0.31" (8mm) of precipitation.

How much does it rain in Montgomery in September?

In Montgomery, in September, during 7.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.

When it does not snow in Montgomery?

May through October are months without snowfall.

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

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

What time are sunrise and sunset in September in Montgomery?

On the first day of September in Montgomery, sunrise is at 7:06 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:21 pm EDT.

How long on average sun shines in September in Montgomery?

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

What is the UV index intensity in September in Montgomery?

In Montgomery, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to 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
Montgomery, OH

Average temperature in September - Montgomery, OH
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 58.3°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 (23.2°F).

Average pressure in September
Montgomery, OH

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

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Montgomery, OH

Average wind speed in September - Montgomery, OH
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in September
Montgomery, OH

Average humidity in September - Montgomery, OH
  • Average humidity in September: 75%

The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Montgomery, OH

Average rainfall in September - Montgomery, OH
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is May (0.94").
The driest month (with the least rainfall) is September (0.31").

Average rainfall days in September
Montgomery, OH

Average rainfall days in September - Montgomery, OH
  • Average rainfall days in September: 7.8 days

The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is February (5.6 days).

Average snowfall in September
Montgomery, OH

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

The month with the highest snowfall is January (0.59").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Montgomery, OH

Average snowfall days in September - Montgomery, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.2 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
Montgomery, OH

Average daylight in September / Average sunshine in September - Montgomery, OH
  • 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, July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Montgomery, OH

Average sunshine days in September - Montgomery, OH
  • Average sunshine days in September: 19.2 days

The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is June (16 days).

Average UV index in September
Montgomery, OH

Average UV index in September - Montgomery, OH
  • Average UV index in September: 4

The months with the highest UV index are May, 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, OH

Average cloud cover in September - Montgomery, OH
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Montgomery, OH

Average visibility in September - Montgomery, OH
  • 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, Ohio, USA

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