September weather forecast
Chaffee, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Chaffee, Missouri, with an average temperature ranging between max 81.1°F (27.3°C) and min 61.3°F (16.3°C).

Temperature

The beginning of September records an average high-temperature of a warm 81.1°F (27.3°C), marking a negligible difference from August's 86.2°F (30.1°C). Chaffee's nights in September cool down to an average low-temperature of 61.3°F (16.3°C).

Heat index

The heat index in September is evaluated at a tropical 86°F (30°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:42 pm CDT.

Sunshine

In Chaffee, the average sunshine in September is 9.7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the temperature in September in Chaffee?

The high-temperature, in September, in Chaffee, records 81.1°F (27.3°C), while the low-temperature is 61.3°F (16.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in September is evaluated at 86°F (30°C).

What is the average humidity in September in Chaffee?

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

What is the driest month in Chaffee?

The month with the least rainfall in Chaffee, Missouri, is September, when the rain falls for 11.4 days and typically collects 1.5" (38mm) of precipitation.

How many days does it rain in September in Chaffee?

In September, in Chaffee, the rain falls for 11.4 days. Throughout September, 1.5" (38mm) of precipitation is accumulated.

When it does not snow in Chaffee?

May through September are months without snowfall.

Does it snow in Chaffee in September?

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

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

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

When is the sunrise / sunset in September in Chaffee?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:26 pm. On the last day of the month, in Chaffee, sunrise is at 6:53 am and sunset at 6:42 pm CDT.

How long on average sun shines in September in Chaffee?

In Chaffee, Missouri, the average sunshine duration in September is 9.7h.

What is the UV index intensity in September in Chaffee?

The average daily maximum UV index in September in Chaffee is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
Chaffee, MO

Average temperature in September - Chaffee, MO
  • Average high temperature in September: 81.1°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: 61.3°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

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Average pressure in September
Chaffee, MO

Average pressure in September - Chaffee, 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 (29.94"Hg).

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Average wind speed in September
Chaffee, MO

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

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in September
Chaffee, MO

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

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Chaffee, MO

Average rainfall in September - Chaffee, MO
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in September
Chaffee, MO

Average rainfall days in September - Chaffee, MO
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.8 days).

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Average snowfall in September
Chaffee, MO

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

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Chaffee, MO

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

The month with the highest number of snowfall days is January (3.7 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
Chaffee, MO

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Chaffee, MO

Average sunshine days in September - Chaffee, MO
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in September
Chaffee, MO

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

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

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Average cloud cover in September
Chaffee, MO

Average cloud cover in September - Chaffee, MO
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, August and September (Cloud cover 27).

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Average visibility in September
Chaffee, MO

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

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