September weather forecast
Downing, MO

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Weather in September

The first month of the autumn, September, is still a warm month in Downing, Missouri, with an average temperature varying between 76.5°F (24.7°C) and 57.4°F (14.1°C).

Temperature

With the commencement of September, Downing records a moderate temperature decline, with the average high easing from August's 82.8°F (28.2°C) to a still warm 76.5°F (24.7°C). An average low-temperature of 57.4°F (14.1°C) is noted during the month of September.

Humidity

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

Rainfall

In Downing, in September, during 10.7 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Downing, during the entire year, the rain falls for 136.6 days and collects up to 28.5" (724mm) of precipitation.

Snowfall

In Downing, snow does not fall in May through September.

Daylight

In Downing, the average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:37 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:52 pm CDT.

Sunshine

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

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature during September is 76.5°F (24.7°C) and the low-temperature is 57.4°F (14.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

How much does it rain in Downing in September?

In Downing, in September, during 10.7 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Downing?

In Downing, snow does not fall in May through September.

Does it snow in Downing in September?

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

How many hours of daylight does Downing have in September?

In September, the average day length is 12h and 27min.

What time are sunrise and sunset in September in Downing?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:52 pm CDT.

How many hours of sunshine does Downing have in September?

In September, the average sunshine duration is 9.4h.

How high is the UV index in September?

In Downing, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Downing, MO

Average temperature in September - Downing, MO
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in September
Downing, MO

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Downing, MO

Average wind speed in September - Downing, MO
  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity in September
Downing, MO

Average humidity in September - Downing, MO
  • Average humidity in September: 75%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Downing, MO

Average rainfall in September - Downing, MO
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is January (1.14").

Average rainfall days in September
Downing, MO

Average rainfall days in September - Downing, MO
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in September
Downing, MO

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

The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Downing, MO

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

The month with the highest number of snowfall days is January (7.5 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
Downing, MO

Average daylight in September / Average sunshine in September - Downing, MO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Downing, MO

Average sunshine days in September - Downing, MO
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.3 days).

Average UV index in September
Downing, MO

Average UV index in September - Downing, MO
  • Average UV index in September: 4

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
Downing, MO

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

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in September
Downing, MO

Average visibility in September - Downing, 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).

Downing, Missouri, USA

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