September weather forecast
Holts Summit, MO

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Weather in September

September, the first month of the autumn in Holts Summit, is still a warm month, with an average temperature fluctuating between 80.1°F (26.7°C) and 59.2°F (15.1°C).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a tropical 87.4°F (30.8°C) in August to a warm 80.1°F (26.7°C). September brings with it a nighttime average temperature of 59.2°F (15.1°C).

Humidity

In Holts Summit, Missouri, the average relative humidity in September is 73%.

Rainfall

In Holts Summit, during September, the rain falls for 7 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Holts Summit, during the entire year, the rain falls for 93.7 days and collects up to 9.29" (236mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September in Holts Summit, Missouri, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm CDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In Holts Summit, Missouri, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, a regular UV index of 5 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. Around midday, solar radiation is most harmful; hence, exposure should be limited. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What is the usual temperature for Holts Summit in September?

The average high-temperature and low-temperature in Holts Summit during September are 80.1°F (26.7°C) and 59.2°F (15.1°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is computed to be 100.4°F (38°C).

What is the average humidity in September in Holts Summit?

In Holts Summit, Missouri, the average relative humidity in September is 73%.

How many days does it rain in September in Holts Summit?

In September, in Holts Summit, Missouri, the rain falls for 7 days. Throughout September, 0.55" (14mm) of precipitation is accumulated.

When it does not snow in Holts Summit?

April through October are months without snowfall in Holts Summit, Missouri.

What is the average length of the day in September in Holts Summit?

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

When are sunrise and sunset in September in Holts Summit?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of the month, in Holts Summit, Missouri, sunrise is at 7:04 am and sunset at 6:52 pm CDT.

How many hours of sunshine does Holts Summit have in September?

In September, the average sunshine duration in Holts Summit, Missouri, is 9.5h.

What is the UV index intensity in September in Holts Summit?

In September, the average daily maximum UV index in Holts Summit is 5. A UV Index value 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
Holts Summit, MO

Average temperature in September - Holts Summit, MO
  • Average high temperature in September: 80.1°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in September: 59.2°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in September
Holts Summit, MO

Average pressure in September - Holts Summit, 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
Holts Summit, MO

Average wind speed in September - Holts Summit, MO
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in September
Holts Summit, MO

Average humidity in September - Holts Summit, MO
  • Average humidity in September: 73%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Holts Summit, MO

Average rainfall in September - Holts Summit, MO
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is November (0.47").

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Average rainfall days in September
Holts Summit, MO

Average rainfall days in September - Holts Summit, MO
  • Average rainfall days in September: 7 days

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is January (4 days).

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Average snowfall in September
Holts Summit, MO

Average snowfall in September - Holts Summit, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.71").
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
Holts Summit, MO

Average snowfall days in September - Holts Summit, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.2 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
Holts Summit, MO

Average daylight in September / Average sunshine in September - Holts Summit, 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 3min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Holts Summit, MO

Average sunshine days in September - Holts Summit, MO
  • Average sunshine days in September: 20.7 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (16.7 days).

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Average UV index in September
Holts Summit, MO

Average UV index in September - Holts Summit, MO
  • Average UV index in September: 5

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
Holts Summit, MO

Average cloud cover in September - Holts Summit, MO
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in September
Holts Summit, MO

Average visibility in September - Holts Summit, 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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Holts Summit, Missouri, USA

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