August weather forecast
Jonestown, TX

Share

Weather in August

The last month of the summer, August, is a torrid month in Jonestown, Texas, with an average temperature fluctuating between 95.5°F (35.3°C) and 74.8°F (23.8°C).

Temperature

The warmest temperatures occur during August, when averages reach a peak of 95.5°F (35.3°C) and a low of 74.8°F (23.8°C).

Heat index

The average heat index in August is calculated to be a blazing hot 113°F (45°C). Mindful: Heat cramps and heat exhaustion are to be expected. Extended physical effort might result in heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 particularly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

With an average relative humidity of 59%, August is the least humid month.

Rainfall

In Jonestown, in August, during 9.8 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Jonestown, during the entire year, the rain falls for 137.4 days and collects up to 24.13" (613mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In Jonestown, the average length of the day in August is 13h and 13min.
On the first day of August, sunrise is at 6:50 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 7:55 pm CDT.

Sunshine

In August, the average sunshine is 10.2h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 7 in August transforms into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in Jonestown?

The warmest period in Jonestown is August, when temperatures fluctuate between an average high of 95.5°F (35.3°C) and a low of 74.8°F (23.8°C).

How hot is it in August?

The high-temperature, in August, in Jonestown, records 95.5°F (35.3°C), while the low-temperature is 74.8°F (23.8°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 113°F (45°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 59%.

What is the average humidity in August?

The average relative humidity in August is 59%.

How many days does it rain in August?

In Jonestown, Texas, during August, the rain falls for 9.8 days and regularly aggregates up to 1.85" (47mm) of precipitation.

When it does not snow?

March through December are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 13min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:50 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 7:55 pm CDT.

How long on average sun shines in August?

In Jonestown, the average sunshine duration in August is 10.2h.

What is the month with the highest UV index?

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

What is the UV index reading in August?

In August, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe 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
Jonestown, TX

Average temperature in August - Jonestown, TX
  • Average high temperature in August: 95.5°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (58.8°F).

  • Average low temperature in August: 74.8°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).

Average pressure in August
Jonestown, TX

Average pressure in August - Jonestown, TX
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.91"Hg).

Average wind speed in August
Jonestown, TX

Average wind speed in August - Jonestown, TX
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is September (6.3mph).

Average humidity in August
Jonestown, TX

Average humidity in August - Jonestown, TX
  • Average humidity in August: 59%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (59%).

Average rainfall in August
Jonestown, TX

Average rainfall in August - Jonestown, TX
  • Average rainfall in August: 1.85"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (1.02").

Average rainfall days in August
Jonestown, TX

Average rainfall days in August - Jonestown, TX
  • Average rainfall days in August: 9.8 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in August
Jonestown, TX

Average snowfall in August - Jonestown, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in August
Jonestown, TX

Average snowfall days in August - Jonestown, TX
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Jonestown, TX

Average daylight in August / Average sunshine in August - Jonestown, TX
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are November and December (Average sunshine: 5h and 24min).

Average sunshine days in August
Jonestown, TX

Average sunshine days in August - Jonestown, TX
  • Average sunshine days in August: 19.5 days

The month with the most sunshine days is January (21.2 days).
The month with the least sunshine days is May (12.5 days).

Average UV index in August
Jonestown, TX

Average UV index in August - Jonestown, 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 3).

Average cloud cover in August
Jonestown, TX

Average cloud cover in August - Jonestown, TX
  • Average cloud cover in August: 23

The months with the most cloud cover are March and May (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in August
Jonestown, TX

Average visibility in August - Jonestown, 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).

Jonestown, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location