September weather forecast
Joplin, MO

Amazing Grand Falls in Joplin, Missouri
Amazing Grand Falls in Joplin, Missouri

Weather in September

The first month of the autumn, September, is still a warm month in Joplin, Missouri, with average temperature ranging between min 61.2°F (16.2°C) and max 79.9°F (26.6°C).

Temperature

In September, the average high-temperature slightly decreases, from a hot 87.1°F (30.6°C) in August, to a moderately hot 79.9°F (26.6°C). In September, in Joplin, the average low-temperature is 61.2°F (16.2°C).

Humidity

In September, the average relative humidity in Joplin is 74%.

Rainfall

In Joplin, during September, the rain falls for 12.5 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, in Joplin, there are 143.4 rainfall days, and 32.01" (813mm) of precipitation is accumulated.

Snowfall

April, June through October are months without snowfall.

Daylight

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

Sunshine

In September, the average sunshine in Joplin is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 average humidity in September in Joplin?

The average relative humidity in September is 74%.

How much does it rain in Joplin in September?

In September, in Joplin, Missouri, the rain falls for 12.5 days. Throughout September, 2.72" (69mm) of precipitation is accumulated.

When it does not snow in Joplin?

April, June through October are months without snowfall in Joplin.

How many hours of daylight does Joplin have in September?

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

How long on average sun shines in September in Joplin?

The average sunshine in September is 9.3h.

How high is the UV index in September in Joplin?

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

Average temperature in September
Joplin, MO

Average temperature in September - Joplin, MO
  • Average high temperature in September: 79.9°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 (42.3°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in September
Joplin, MO

Average pressure in September - Joplin, MO
  • Average pressure in September: 30.01"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in September
Joplin, MO

Average wind speed in September - Joplin, MO
  • Average wind speed in September: 7.7mph

The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in September
Joplin, MO

Average humidity in September - Joplin, MO
  • Average humidity in September: 74%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Joplin, MO

Average rainfall in September - Joplin, MO
  • Average rainfall in September: 2.72"

The wettest month (with the highest rainfall) is May (5.04").
The driest month (with the least rainfall) is February (1.54").

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Average rainfall days in September
Joplin, MO

Average rainfall days in September - Joplin, MO
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (16.8 days).
Months with the least rainy days are January and December (6.8 days).

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Average snowfall in September
Joplin, MO

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

The month with the highest snowfall is February (2.44").
Months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in September
Joplin, MO

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

The month with the highest number of snowfall days is February (4 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Joplin, 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: 9.3h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is January (Average sunshine: 5.4h).

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Average sunshine days in September
Joplin, MO

Average sunshine days in September - Joplin, MO
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is May (12.2 days).

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Average UV index in September
Joplin, MO

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

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Joplin, MO

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

Months with the most cloud cover are February and March (Cloud cover 45).
Months with the least cloud cover are June, July and August (Cloud cover 25).

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Average visibility in September
Joplin, MO

Average visibility in September - Joplin, 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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