September weather forecast
Kilwinning, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Kilwinning, Missouri, with an average temperature fluctuating between 57.4°F (14.1°C) and 76.5°F (24.7°C).

Temperature

The start of September signals a gentle decrease in the average high-temperature, transitioning from 82.8°F (28.2°C) in August to a still warm 76.5°F (24.7°C). September brings with it a nighttime average temperature of 57.4°F (14.1°C) in Kilwinning.

Humidity

In September, the average relative humidity is 75%.

Rainfall

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

Snowfall

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

Daylight

In Kilwinning, 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

The average sunshine in September in Kilwinning, Missouri, is 9.4h.

UV index

In September, the average daily maximum UV index in Kilwinning is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. To guard against the harmful effects of the Sun, minimize exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What is the temperature in September in Kilwinning?

The average high-temperature and low-temperature during September are 76.5°F (24.7°C) and 57.4°F (14.1°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 89.6°F (32°C).

What is the average humidity in September in Kilwinning?

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

How much does it rain in Kilwinning in September?

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

When it does not snow in Kilwinning?

In Kilwinning, Missouri, snow does not fall in May through September.

Does it snow in Kilwinning in September?

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

How many hours of daylight does Kilwinning have in September?

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

When is the sunrise / sunset in September in Kilwinning?

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, in Kilwinning, Missouri, sunrise is at 7:05 am and sunset at 6:52 pm CDT.

How long on average sun shines in September in Kilwinning?

The average sunshine duration in September in Kilwinning is 9.4h.

What is the UV index intensity in September in Kilwinning?

In September, the average daily maximum UV index in Kilwinning, Missouri, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Kilwinning, MO

Average temperature in September - Kilwinning, 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).

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Average pressure in September
Kilwinning, MO

Average pressure in September - Kilwinning, 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).

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Average wind speed in September
Kilwinning, MO

Average wind speed in September - Kilwinning, 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).

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Average humidity in September
Kilwinning, MO

Average humidity in September - Kilwinning, 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%).

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Average rainfall in September
Kilwinning, MO

Average rainfall in September - Kilwinning, 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").

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Average rainfall days in September
Kilwinning, MO

Average rainfall days in September - Kilwinning, 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).

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Average snowfall in September
Kilwinning, MO

Average snowfall in September - Kilwinning, 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").

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Average snowfall days in September
Kilwinning, MO

Average snowfall days in September - Kilwinning, 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).

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

Average daylight in September / Average sunshine in September - Kilwinning, 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).

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Average sunshine days in September
Kilwinning, MO

Average sunshine days in September - Kilwinning, 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).

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Average UV index in September
Kilwinning, MO

Average UV index in September - Kilwinning, 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).

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Average cloud cover in September
Kilwinning, MO

Average cloud cover in September - Kilwinning, 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).

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Average visibility in September
Kilwinning, MO

Average visibility in September - Kilwinning, 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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Kilwinning, Missouri, USA

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