September weather forecast
Saint Joe, AR

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Weather in September

September, the first month of the autumn in Saint Joe, is still a warm month, with an average temperature ranging between max 81.1°F (27.3°C) and min 59.7°F (15.4°C).

Temperature

The arrival of September corresponds with a light shift in temperature, down from a tropical 88°F (31.1°C) in August to a warm 81.1°F (27.3°C). The average low-temperature of 59.7°F (15.4°C) is witnessed in Saint Joe during September.

Heat index

The heat index in September is evaluated at a hot 86°F (30°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. 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 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

In Saint Joe, the average relative humidity in September is 75%.

Rainfall

In September, in Saint Joe, the rain falls for 13.5 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 145.6 rainfall days, and 31.89" (810mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Saint Joe, Arkansas.

Daylight

In Saint Joe, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:43 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm CDT.

Sunshine

In September, the average sunshine in Saint Joe is 9.2h.

UV index

In Saint Joe, Arkansas, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the usual temperature for Saint Joe in September?

In Saint Joe, in September, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 59.7°F (15.4°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 86°F (30°C).

What is the average humidity in September in Saint Joe?

The average relative humidity in September is 75%.

How many days does it rain in September in Saint Joe?

In September, in Saint Joe, Arkansas, the rain falls for 13.5 days. Throughout September, 2.09" (53mm) of precipitation is accumulated.

When it does not snow in Saint Joe?

In Saint Joe, Arkansas, snow does not fall in June through October.

How many hours of daylight does Saint Joe have in September?

In September, the average day length in Saint Joe, Arkansas, is 12h and 23min.

When are sunrise and sunset in September in Saint Joe?

In September, on the first day of the month, sunrise is at 6:43 am and sunset at 7:38 pm. On the last day of the month, in Saint Joe, sunrise is at 7:06 am and sunset at 6:55 pm CDT.

How many hours of sunshine does Saint Joe have in September?

The average sunshine duration in September in Saint Joe, Arkansas, is 9.2h.

What is the UV index intensity in September in Saint Joe?

In September, the average daily maximum UV index in Saint Joe is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Saint Joe, AR

Average temperature in September - Saint Joe, AR
  • Average high temperature in September: 81.1°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 (44.2°F).

  • Average low temperature in September: 59.7°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 (28.6°F).

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Average pressure in September
Saint Joe, AR

Average pressure in September - Saint Joe, AR
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Saint Joe, AR

Average wind speed in September - Saint Joe, AR
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Saint Joe, AR

Average humidity in September - Saint Joe, AR
  • Average humidity in September: 75%

The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are January and October (73%).

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Average rainfall in September
Saint Joe, AR

Average rainfall in September - Saint Joe, AR
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are January and February (1.97").

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Average rainfall days in September
Saint Joe, AR

Average rainfall days in September - Saint Joe, AR
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is December (7.5 days).

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Average snowfall in September
Saint Joe, AR

Average snowfall in September - Saint Joe, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Saint Joe, AR

Average snowfall days in September - Saint Joe, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.2 days).
The 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
Saint Joe, AR

Average daylight in September / Average sunshine in September - Saint Joe, AR
  • 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 48min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 30min).

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Average sunshine days in September
Saint Joe, AR

Average sunshine days in September - Saint Joe, AR
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in September
Saint Joe, AR

Average UV index in September - Saint Joe, AR
  • 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
Saint Joe, AR

Average cloud cover in September - Saint Joe, AR
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in September
Saint Joe, AR

Average visibility in September - Saint Joe, AR
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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Saint Joe, Arkansas, USA

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