September weather forecast
Mosby, MO

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Weather in September

September, the first month of the autumn in Mosby, is also a moderately hot month, with temperature in the range of an average high of 77.7°F (25.4°C) and an average low of 58.8°F (14.9°C).

Temperature

September's arrival signals a moderate reduction in the average high-temperature, easing from 83.7°F (28.7°C) in August to a still warm 77.7°F (25.4°C). An average nighttime temperature of 58.8°F (14.9°C) is recorded during September.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Mosby, in September, it is raining for 12.4 days, with typically 2.52" (64mm) of accumulated precipitation. In Mosby, during the entire year, the rain falls for 138.2 days and collects up to 27.72" (704mm) of precipitation.

Snowfall

In Mosby, snow does not fall in June through September.

Daylight

In Mosby, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:46 am and sunset at 7:47 pm. On the last day of September, in Mosby, sunrise is at 7:13 am and sunset at 7:00 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September in Mosby is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Exercise prevention - Warding off sunburn is urged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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 Mosby in September?

In September, the average high-temperature and low-temperature are 77.7°F (25.4°C) and 58.8°F (14.9°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is computed to be 93.2°F (34°C).

What is the average humidity in September in Mosby?

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

How many days does it rain in September in Mosby?

In Mosby, in September, it is raining for 12.4 days, with typically 2.52" (64mm) of accumulated precipitation.

When it does not snow in Mosby?

In Mosby, Missouri, snow does not fall in June through September.

Does it snow in Mosby in September?

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

How many hours of daylight does Mosby have in September?

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

When is the sunrise / sunset in September in Mosby?

In September, on the first day of the month, sunrise is at 6:46 am and sunset at 7:47 pm. On the last day of the month, in Mosby, sunrise is at 7:13 am and sunset at 7:00 pm CDT.

How many hours of sunshine does Mosby have in September?

The average sunshine duration in September in Mosby is 9.3h.

What is the UV index intensity in September in Mosby?

In September, the average daily maximum UV index in Mosby is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Mosby, MO

Average temperature in September - Mosby, MO
  • Average high temperature in September: 77.7°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in September: 58.8°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in September
Mosby, MO

Average pressure in September - Mosby, MO
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in September
Mosby, MO

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

The windiest months (with the highest average wind speed) are March and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in September
Mosby, MO

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

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are October and November (71%).

Average rainfall in September
Mosby, MO

Average rainfall in September - Mosby, MO
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in September
Mosby, MO

Average rainfall days in September - Mosby, MO
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in September
Mosby, MO

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

The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Mosby, MO

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

The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Mosby, MO

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

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in September
Mosby, MO

Average sunshine days in September - Mosby, MO
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is December (21 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in September
Mosby, MO

Average UV index in September - Mosby, 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
Mosby, MO

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

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September
Mosby, MO

Average visibility in September - Mosby, 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).

Mosby, Missouri, USA

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