September weather forecast
Clarkson Valley, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Clarkson Valley, Missouri, with an average temperature ranging between min 59.9°F (15.5°C) and max 79.7°F (26.5°C).

Temperature

With the onset of September, the average high-temperature subtly recedes from August's tropical 86.2°F (30.1°C) to a moderately hot 79.7°F (26.5°C). During September, Clarkson Valley consistently records a temperature low averaging a moderate 59.9°F (15.5°C).

Humidity

The average relative humidity in September in Clarkson Valley, Missouri, is 73%.

Rainfall

In Clarkson Valley, in September, it is raining for 12 days, with typically 1.89" (48mm) of accumulated precipitation. In Clarkson Valley, during the entire year, the rain falls for 139.6 days and collects up to 26.1" (663mm) of precipitation.

Snowfall

In Clarkson Valley, snow does not fall in April through October.

Daylight

In Clarkson Valley, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:46 pm CDT.

Sunshine

In Clarkson Valley, the average sunshine in September is 9.6h.

UV index

In Clarkson Valley, Missouri, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What are the temperatures in Clarkson Valley in September?

During September, Clarkson Valley experiences an average high-temperature of 79.7°F (26.5°C) and a low-temperature of 59.9°F (15.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 96.8°F (36°C).

What is the average humidity in September in Clarkson Valley?

The average relative humidity in September is 73%.

How much does it rain in Clarkson Valley in September?

In September, in Clarkson Valley, Missouri, the rain falls for 12 days. Throughout September, 1.89" (48mm) of precipitation is accumulated.

When it does not snow in Clarkson Valley?

In Clarkson Valley, snow does not fall in April through October.

How many hours of daylight does Clarkson Valley have in September?

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

When is the sunrise / sunset in September in Clarkson Valley?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:46 pm CDT.

How many hours of sunshine does Clarkson Valley have in September?

In September, the average sunshine duration in Clarkson Valley, Missouri, is 9.6h.

What is the UV index reading in September in Clarkson Valley?

The average daily maximum UV index in September in Clarkson Valley, Missouri, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Clarkson Valley, MO

Average temperature in September - Clarkson Valley, MO
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

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Average pressure in September
Clarkson Valley, MO

Average pressure in September - Clarkson Valley, 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 (29.92"Hg).

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Average wind speed in September
Clarkson Valley, MO

Average wind speed in September - Clarkson Valley, MO
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).

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Average humidity in September
Clarkson Valley, MO

Average humidity in September - Clarkson Valley, MO
  • Average humidity in September: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Clarkson Valley, MO

Average rainfall in September - Clarkson Valley, MO
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (1.3").

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Average rainfall days in September
Clarkson Valley, MO

Average rainfall days in September - Clarkson Valley, MO
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in September
Clarkson Valley, MO

Average snowfall in September - Clarkson Valley, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Clarkson Valley, MO

Average snowfall days in September - Clarkson Valley, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Clarkson Valley, MO

Average daylight in September / Average sunshine in September - Clarkson Valley, 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 30min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in September
Clarkson Valley, MO

Average sunshine days in September - Clarkson Valley, MO
  • Average sunshine days in September: 16.5 days

The months with the most sunshine days are January and December (20.2 days).
The month with the least sunshine days is June (12 days).

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Average UV index in September
Clarkson Valley, MO

Average UV index in September - Clarkson Valley, MO
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Clarkson Valley, MO

Average cloud cover in September - Clarkson Valley, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in September
Clarkson Valley, MO

Average visibility in September - Clarkson Valley, 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).

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Clarkson Valley, Missouri, USA

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