September weather forecast
Montgomery City, MO

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Weather in September

September, the first month of the autumn in Montgomery City, is still a warm month, with an average temperature ranging between max 79°F (26.1°C) and min 58.8°F (14.9°C).

Temperature

September is characterized by a slight reduction in average high-temperature, easing from a warm 85.3°F (29.6°C) in August to a still moderately hot 79°F (26.1°C). Throughout September, the average low-temperature records at a moderate 58.8°F (14.9°C).

Humidity

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

Rainfall

In Montgomery City, during September, the rain falls for 11.2 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 139.8 rainfall days, and 28.7" (729mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September in Montgomery City, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm CDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In Montgomery City, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

During September, Montgomery City experiences an average high-temperature of 79°F (26.1°C) and a low-temperature of 58.8°F (14.9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

How many days does it rain in September?

In Montgomery City, during September, the rain falls for 11.2 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.1h.

What is the UV index reading in September?

In September, the average daily maximum UV index in Montgomery City is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Montgomery City, MO

Average temperature in September - Montgomery City, MO
  • Average high temperature in September: 79°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in September: 58.8°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in September
Montgomery City, MO

Average pressure in September - Montgomery City, MO
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Montgomery City, MO

Average wind speed in September - Montgomery City, MO
  • Average wind speed in September: 6.6mph

The windiest months (with the highest average wind speed) are January and February (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

Average humidity in September
Montgomery City, MO

Average humidity in September - Montgomery City, MO
  • Average humidity in September: 75%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Montgomery City, MO

Average rainfall in September - Montgomery City, MO
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is May (3.39").
The driest months (with the least rainfall) are January and February (1.46").

Average rainfall days in September
Montgomery City, MO

Average rainfall days in September - Montgomery City, MO
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.5 days).

Average snowfall in September
Montgomery City, MO

Average snowfall in September - Montgomery City, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Montgomery City, MO

Average snowfall days in September - Montgomery City, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.9 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 City, MO

Average daylight in September / Average sunshine in September - Montgomery City, MO
  • 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in September
Montgomery City, MO

Average sunshine days in September - Montgomery City, MO
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in September
Montgomery City, MO

Average UV index in September - Montgomery City, MO
  • 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 City, MO

Average cloud cover in September - Montgomery City, MO
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Montgomery City, MO

Average visibility in September - Montgomery City, MO
  • 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 City, Missouri, USA

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