September weather forecast
Wolf Island, MO

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Weather in September

September, the first month of the autumn in Wolf Island, is still a warm month, with an average temperature ranging between max 81.7°F (27.6°C) and min 62.2°F (16.8°C).

Temperature

The arrival of September denotes a barely perceptible change in the average high-temperatures to a warm 81.7°F (27.6°C) from August's 86.2°F (30.1°C). Wolf Island experiences a mean temperature of 62.2°F (16.8°C) during September nights.

Heat index

In September, the heat index is calculated to be a tropical 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

In Wolf Island, the average relative humidity in September is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.42" (36mm) of precipitation.

Snowfall

In Wolf Island, snow does not fall in April through October.

Daylight

In Wolf Island, the average length of the day in September is 12h and 24min.
On the first day of September in Wolf Island, sunrise is at 6:28 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:41 pm CDT.

Sunshine

In Wolf Island, the average sunshine in September is 9.7h.

UV index

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 unprotected exposure to Sun's UV rays for average individuals.
Note: In September, an average UV index of 5 transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What are the temperatures in Wolf Island in September?

The high-temperature in Wolf Island, Missouri, during September is 81.7°F (27.6°C) and the low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 86°F (30°C).

What is the average humidity in September in Wolf Island?

In Wolf Island, the average relative humidity in September is 72%.

What is the driest month in Wolf Island?

September is the month with the least rainfall in Wolf Island, Missouri. Rain falls for 11.5 days and accumulates 1.42" (36mm) of precipitation.

How much does it rain in Wolf Island in September?

In September, in Wolf Island, Missouri, the rain falls for 11.5 days. Throughout September, 1.42" (36mm) of precipitation is accumulated.

When it does not snow in Wolf Island?

In Wolf Island, Missouri, snow does not fall in April through October.

What is the average length of the day in September in Wolf Island?

In September, the average day length in Wolf Island is 12h and 24min.

When is the sunrise / sunset in September in Wolf Island?

On the first day of September in Wolf Island, Missouri, sunrise is at 6:28 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:41 pm CDT.

How many hours of sunshine does Wolf Island have in September?

The average sunshine duration in September in Wolf Island is 9.7h.

What is the UV index intensity in September in Wolf Island?

The average daily maximum UV index in September in Wolf Island is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Wolf Island, MO

Average temperature in September - Wolf Island, MO
  • Average high temperature in September: 81.7°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in September: 62.2°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

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Average pressure in September
Wolf Island, MO

Average pressure in September - Wolf Island, 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
Wolf Island, MO

Average wind speed in September - Wolf Island, MO
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in September
Wolf Island, MO

Average humidity in September - Wolf Island, MO
  • Average humidity in September: 72%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Wolf Island, MO

Average rainfall in September - Wolf Island, MO
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is March (4.21").
The driest month (with the least rainfall) is September (1.42").

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Average rainfall days in September
Wolf Island, MO

Average rainfall days in September - Wolf Island, MO
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is November (10.1 days).

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Average snowfall in September
Wolf Island, MO

Average snowfall in September - Wolf Island, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.54").
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
Wolf Island, MO

Average snowfall days in September - Wolf Island, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.7 days).
The 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
Wolf Island, MO

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

The month with the longest days is June (Average daylight: 14h and 36min).
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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Wolf Island, MO

Average sunshine days in September - Wolf Island, MO
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is March (12.3 days).

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Average UV index in September
Wolf Island, MO

Average UV index in September - Wolf Island, 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 and December (UV index 2).

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Average cloud cover in September
Wolf Island, MO

Average cloud cover in September - Wolf Island, MO
  • Average cloud cover in September: 26

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in September
Wolf Island, MO

Average visibility in September - Wolf Island, 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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Wolf Island, Missouri, USA

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