Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
August
Weather in August
Temperature
August is the month when Johnson City's temperatures reach their peak, with averages of 93.9°F (34.4°C) and lows of 72.9°F (22.7°C).Heat index
During August, the heat index is evaluated at a blistering 111.2°F (44°C). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.Be aware that heat index ratings are designed for shaded locations and minor breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The least humid month is August, with an average relative humidity of 61%.Rainfall
In August, the rain falls for 10.7 days. Throughout August, 2.17" (55mm) of precipitation is accumulated. Throughout the year, there are 149 rainfall days, and 24.92" (633mm) of precipitation is accumulated.Snowfall
In Johnson City, snow does not fall in March through October and December.Daylight
The average length of the day in August is 13h and 13min.On the first day of August, sunrise is at 6:52 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:57 pm CDT.
Sunshine
In Johnson City, the average sunshine in August is 9.9h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In August, the maximum UV index of 7 suggests these recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
How hot is it in August?
What is the least humid month?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Johnson City have in August?
When are sunrise and sunset in August?
How long on average sun shines in August?
What are the months with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Johnson City, TX
- Average high temperature in August: 93.9°F
The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in August: 72.9°F
The month with the highest average low temperature is August (72.9°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).
Average pressure in August
Johnson City, TX
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Johnson City, TX
- Average wind speed in August: 7.4mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in August
Johnson City, TX
- Average humidity in August: 61%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (61%).
Average rainfall in August
Johnson City, TX
- Average rainfall in August: 2.17"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in August
Johnson City, TX
- Average rainfall days in August: 10.7 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in August
Johnson City, TX
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in August
Johnson City, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.7 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
Johnson City, 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: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are November and December (Average sunshine: 5h and 30min).
Average sunshine days in August
Johnson City, TX
- Average sunshine days in August: 18.3 days
The month with the most sunshine days is January (21.1 days).
The months with the least sunshine days are May and September (11.1 days).
Average UV index in August
Johnson City, 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
Johnson City, TX
- Average cloud cover in August: 24
The month with the most cloud cover is May (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in August
Johnson City, 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).