August weather forecast
Saint Joe, AR

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Weather in August

August, the last month of the summer in Saint Joe, is another hot month, with an average temperature fluctuating between 88°F (31.1°C) and 66.4°F (19.1°C).

Temperature

The commencement of August brings an average high-temperature of a still tropical 88°F (31.1°C), marking an inconsequential divergence from July. Saint Joe's average low-temperature of 66.4°F (19.1°C) in August reflects a considerable decline from the daytime peak.

Heat index

The heat index for August is evaluated at a torrid 102.2°F (39°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In August, the average relative humidity is 74%.

Rainfall

In Saint Joe, in August, during 15.7 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Saint Joe, during the entire year, the rain falls for 145.6 days and collects up to 31.89" (810mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 29min.
On the first day of August in Saint Joe, sunrise is at 6:19 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:39 pm CDT.

Sunshine

In Saint Joe, the average sunshine in August is 10.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: An average UV index of 6 in August transforms into this advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

In Saint Joe, in August, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 66.4°F (19.1°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 102.2°F (39°C).

What is the average humidity in August?

The average relative humidity in August is 74%.

How much does it rain in August?

In Saint Joe, in August, it is raining for 15.7 days, with typically 2.72" (69mm) of accumulated precipitation.

When it does not snow?

June through October are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 29min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:19 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:39 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.5h.

What is the month with the highest UV index in Saint Joe?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index reading in August?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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 August
Saint Joe, AR

Average temperature in August - Saint Joe, AR
  • Average high temperature in August: 88°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 August: 66.4°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).

Average pressure in August
Saint Joe, AR

Average pressure in August - Saint Joe, AR
  • Average pressure in August: 29.98"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).

Average wind speed in August
Saint Joe, AR

Average wind speed in August - Saint Joe, AR
  • Average wind speed in August: 4.8mph

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).

Average humidity in August
Saint Joe, AR

Average humidity in August - Saint Joe, AR
  • Average humidity in August: 74%

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

Average rainfall in August
Saint Joe, AR

Average rainfall in August - Saint Joe, AR
  • Average rainfall in August: 2.72"

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

Average rainfall days in August
Saint Joe, AR

Average rainfall days in August - Saint Joe, AR
  • Average rainfall days in August: 15.7 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).

Average snowfall in August
Saint Joe, AR

Average snowfall in August - Saint Joe, AR
  • Average snowfall in August: 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").

Average snowfall days in August
Saint Joe, AR

Average snowfall days in August - Saint Joe, AR
  • Average snowfall days in August: 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).

Average daylight in August /
Average sunshine in August
Saint Joe, AR

Average daylight in August / Average sunshine in August - Saint Joe, AR
  • Average daylight in August: 13h and 3min

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 August: 10h and 3min

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).

Average sunshine days in August
Saint Joe, AR

Average sunshine days in August - Saint Joe, AR
  • Average sunshine days in August: 12.8 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).

Average UV index in August
Saint Joe, AR

Average UV index in August - Saint Joe, AR
  • Average UV index in August: 6

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).

Average cloud cover in August
Saint Joe, AR

Average cloud cover in August - Saint Joe, AR
  • Average cloud cover in August: 28

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

Average visibility in August
Saint Joe, AR

Average visibility in August - Saint Joe, AR
  • Average visibility in August: 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).

Saint Joe, Arkansas, USA

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