August weather forecast
Saint Jo, TX

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Weather in August

The last month of the summer, August, is another tropical month in Saint Jo, Texas, with an average temperature varying between 94.6°F (34.8°C) and 73.9°F (23.3°C).

Temperature

The month of August, characterized by an average high of 94.6°F (34.8°C) and a low of 73.9°F (23.3°C), is recognized as the warmest.

Heat index

For most parts of August, the heat index is appraised at a blistering 109.4°F (43°C). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The least humid month is August, with an average relative humidity of 57%.

Rainfall

In Saint Jo, during August, the rain falls for 12.3 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Saint Jo, during the entire year, the rain falls for 128.7 days and collects up to 26.1" (663mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Saint Jo, the average length of the day in August is 13h and 22min.
On the first day of August in Saint Jo, sunrise is at 6:42 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 7:56 pm CDT.

Sunshine

July and August, with an average of 11h of sunshine, are months with the most sunshine in Saint Jo, Texas.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 in August transforms into the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Saint Jo?

In Saint Jo, Texas, temperatures reach their average annual highs in August, measuring 94.6°F (34.8°C) and a minimum average of 73.9°F (23.3°C).

How hot is it in Saint Jo in August?

The average high-temperature, in August, in Saint Jo, is 94.6°F (34.8°C), while the average low-temperature is 73.9°F (23.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is appraised at 109.4°F (43°C).

What is the least humid month in Saint Jo?

August is the least humid month in Saint Jo, Texas, with an average relative humidity of 57%.

What is the average humidity in August in Saint Jo?

In Saint Jo, the average relative humidity in August is 57%.

How much does it rain in Saint Jo in August?

In Saint Jo, Texas, in August, during 12.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow in Saint Jo?

April through October are months without snowfall in Saint Jo.

How many hours of daylight does Saint Jo have in August?

In August, the average day length in Saint Jo, Texas, is 13h and 22min.

When are sunrise and sunset in August in Saint Jo?

On the first day of August in Saint Jo, Texas, sunrise is at 6:42 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 7:56 pm CDT.

What are the months with the most sunshine in Saint Jo?

July and August, with an average of 11h of sunshine, are months with the most sunshine.

How long on average sun shines in August in Saint Jo?

In Saint Jo, the average sunshine duration in August is 11h.

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

June through August, with an average maximum UV index of 7, are months with the highest UV index in Saint Jo.

What is the UV index reading in August in Saint Jo?

In Saint Jo, Texas, the average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health threat 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 Jo, TX

Average temperature in August - Saint Jo, TX
  • Average high temperature in August: 94.6°F

The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in August: 73.9°F

The months with the highest average low temperature are July and August (73.9°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average pressure in August
Saint Jo, TX

Average pressure in August - Saint Jo, TX
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in August
Saint Jo, TX

Average wind speed in August - Saint Jo, TX
  • Average wind speed in August: 7.4mph

The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).

Average humidity in August
Saint Jo, TX

Average humidity in August - Saint Jo, TX
  • Average humidity in August: 57%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (57%).

Average rainfall in August
Saint Jo, TX

Average rainfall in August - Saint Jo, TX
  • Average rainfall in August: 2.36"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in August
Saint Jo, TX

Average rainfall days in August - Saint Jo, TX
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in August
Saint Jo, TX

Average snowfall in August - Saint Jo, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Saint Jo, TX

Average snowfall days in August - Saint Jo, TX
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Saint Jo, TX

Average daylight in August / Average sunshine in August - Saint Jo, TX
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 11h and 0min

The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in August
Saint Jo, TX

Average sunshine days in August - Saint Jo, TX
  • Average sunshine days in August: 16.2 days

The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is May (14.3 days).

Average UV index in August
Saint Jo, TX

Average UV index in August - Saint Jo, TX
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in August
Saint Jo, TX

Average cloud cover in August - Saint Jo, TX
  • Average cloud cover in August: 19

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in August
Saint Jo, TX

Average visibility in August - Saint Jo, TX
  • Average visibility in August: 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).

Saint Jo, Texas, USA

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