September weather forecast
Montrose, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Montrose, Missouri, with an average temperature fluctuating between 79.2°F (26.2°C) and 59.9°F (15.5°C).

Temperature

September's onset brings a negligible change in high-temperatures, falling from 85.6°F (29.8°C) in August to a still warm 79.2°F (26.2°C). In Montrose, the nighttime temperature averages to a refreshing 59.9°F (15.5°C) during September.

Humidity

The average relative humidity in September in Montrose is 76%.

Rainfall

In September, the rain falls for 11.6 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 141.5 rainfall days, and 30.67" (779mm) of precipitation is accumulated.

Snowfall

April, June through September are months without snowfall.

Daylight

In Montrose, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:46 am and sunset at 7:45 pm. On the last day of September, in Montrose, Missouri, sunrise is at 7:11 am and sunset at 6:59 pm CDT.

Sunshine

In Montrose, the average sunshine in September is 9.4h.

UV index

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 the average person.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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 Montrose?

In September, the average high-temperature and low-temperature are 79.2°F (26.2°C) and 59.9°F (15.5°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 96.8°F (36°C).

What is the average humidity in September in Montrose?

In Montrose, Missouri, the average relative humidity in September is 76%.

How many days does it rain in September in Montrose?

In Montrose, during September, the rain falls for 11.6 days and regularly aggregates up to 2.6" (66mm) of precipitation.

When it does not snow in Montrose?

April, June through September are months without snowfall.

Does it snow in Montrose in September?

In Montrose, Missouri, in September, it doesn't snow. In October, it regularly snows.

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

The average day length in September in Montrose is 12h and 25min.

When is the sunrise / sunset in September in Montrose?

On the first day of September in Montrose, Missouri, sunrise is at 6:46 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:59 pm CDT.

How long on average sun shines in September in Montrose?

The average sunshine duration in September in Montrose, Missouri, is 9.4h.

What is the UV index intensity in September in Montrose?

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

Average temperature in September - Montrose, MO
  • Average high temperature in September: 79.2°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in September
Montrose, MO

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Montrose, MO

Average wind speed in September - Montrose, MO
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

Average humidity in September
Montrose, MO

Average humidity in September - Montrose, MO
  • Average humidity in September: 76%

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

Average rainfall in September
Montrose, MO

Average rainfall in September - Montrose, MO
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is January (1.14").

Average rainfall days in September
Montrose, MO

Average rainfall days in September - Montrose, MO
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in September
Montrose, MO

Average snowfall in September - Montrose, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.76").
The months with the least snowfall are April, June, July, August and September (0").

Average snowfall days in September
Montrose, MO

Average snowfall days in September - Montrose, MO
  • Average snowfall days in September: 0 days

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

Average daylight in September / Average sunshine in September - Montrose, MO
  • 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 36min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in September
Montrose, MO

Average sunshine days in September - Montrose, MO
  • Average sunshine days in September: 15.9 days

The months with the most sunshine days are January and December (21.1 days).
The month with the least sunshine days is June (12.1 days).

Average UV index in September
Montrose, MO

Average UV index in September - Montrose, MO
  • Average UV index in September: 5

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
Montrose, MO

Average cloud cover in September - Montrose, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 26).

Average visibility in September
Montrose, MO

Average visibility in September - Montrose, 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).

Montrose, Missouri, USA

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