September weather forecast
Advance, MO

Weather in September

September, the first month of the autumn, in Advance, is also a moderately hot month, with temperature in the range of an average high of 80.8°F (27.1°C) and an average low of 60.6°F (15.9°C).

Temperature

In September, the average high-temperature slightly decreases, from a tropical 86.5°F (30.3°C) in August, to a warm 80.8°F (27.1°C). In Advance, in September, the average low-temperature is 60.6°F (15.9°C).

Heat index

The average heat index in September is appraised at 84.7°F (29.3°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, differences in body mass, height, and shape, pregnancy, and wind affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Advance, the average relative humidity is 73%.

Rainfall

September is the month with the least rainfall in Advance. Rain falls for 11.3 days and accumulates 1.65" (42mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12.4h.

Sunshine

The average sunshine in Advance, Missouri, is 9.6h.

UV index

In Advance, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Advance?

The average high-temperature, in September, in Advance, Missouri, is 80.8°F (27.1°C), while the average low-temperature is 60.6°F (15.9°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 84.7°F (29.3°C).

What is the average humidity in September in Advance?

In September, the average relative humidity is 73%.

What is the driest month in Advance?

The month with the least rainfall is September when the rain falls for 11.3 days and typically collects 1.65" (42mm) of precipitation.

How many days does it rain in September in Advance?

In Advance, in September, it is raining for 11.3 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow in Advance?

April through October are months without snowfall in Advance, Missouri.

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

In September, the average length of the day in Advance, Missouri, is 12.4h.

How long on average sun shines in September in Advance?

The average sunshine in September in Advance, Missouri, is 9.6h.

What is the UV index intensity in September in Advance?

In September, the average daily maximum UV index in Advance, Missouri, is 5. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in September
Advance, MO

Average temperature in September - Advance, MO
  • Average high temperature in September: 80.8°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in September: 60.6°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 (27°F).

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Average pressure in September
Advance, MO

Average pressure in September - Advance, MO
  • Average pressure in September: 30.02"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in September
Advance, MO

Average wind speed in September - Advance, MO
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in September
Advance, MO

Average humidity in September - Advance, MO
  • Average humidity in September: 73%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Advance, MO

Average rainfall in September - Advance, MO
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in September
Advance, MO

Average rainfall days in September - Advance, MO
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in September
Advance, MO

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

The month with the highest snowfall is February (1.81").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Advance, MO

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

The month with the highest number of snowfall days is February (3.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Advance, MO
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9.6h

The month with the most sunshine is June (Average sunshine: 10.6h).
Months with the least sunshine are January, February and December (Average sunshine: 4.9).

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Average sunshine days in September
Advance, MO

Average sunshine days in September - Advance, MO
  • Average sunshine days in September: 17.3 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in September
Advance, MO

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

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Advance, MO

Average cloud cover in September - Advance, MO
  • Average cloud cover in September: 28

Months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in September
Advance, MO

Average visibility in September - Advance, MO
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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