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
Weather in August
Temperature
The start of August sees the average high-temperature at a still moderately hot 82.6°F, showing little difference from July's 83.3°F. In Johnson City, the nighttime chill during August is a clear shift from the day's highs, with an average of 59.5°F.Heat index
August's average heat index is evaluated at a tropical 89.6°F. If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, 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 understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
In Johnson City, the average relative humidity in August is 76%.Rainfall
In August, in Johnson City, Tennessee, the rain falls for 17.7 days. Throughout August, 2.64" of precipitation is accumulated. In Johnson City, during the entire year, the rain falls for 187.8 days and collects up to 32.76" of precipitation.Snowfall
In Johnson City, snow does not fall in May through September.Daylight
In August, the average length of the day in Johnson City is 13h and 30min.On the first day of the month, sunrise is at 6:36 am and sunset at 8:35 pm. On the last day of August, in Johnson City, sunrise is at 7:00 am and sunset at 7:59 pm EDT.
Sunshine
In August, the average sunshine is 10.5h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Johnson City. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In August, the UV index of 6 transforms into the following advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
FAQ
How hot does it get in Johnson City in August?
What is the average humidity in August in Johnson City?
How many days does it rain in August in Johnson City?
When it does not snow in Johnson City?
How many hours of daylight does Johnson City have in August?
What time are sunrise and sunset in August in Johnson City?
How long on average sun shines in August in Johnson City?
What is the month with the highest UV index in Johnson City?
What is the UV index reading in August in Johnson City?
Average temperature in August
Johnson City, TN
- Average high temperature in August: 82.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in August
Johnson City, TN
- Average pressure in August: 30.03"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in August
Johnson City, TN
- Average wind speed in August: 3.7mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in August
Johnson City, TN
- Average humidity in August: 76%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is November (75%).
Average rainfall in August
Johnson City, TN
- Average rainfall in August: 2.64"
The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in August
Johnson City, TN
- Average rainfall days in August: 17.7 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (11.2 days).
Average snowfall in August
Johnson City, TN
- Average snowfall in August: 0"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Johnson City, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Johnson City, TN
- 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 42min).
- Average sunshine in August: 10h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in August
Johnson City, TN
- Average sunshine days in August: 9.8 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in August
Johnson City, TN
- Average UV index in August: 6
The months with the highest UV index are 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
Johnson City, TN
- Average cloud cover in August: 31
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 31).
Average visibility in August
Johnson City, TN
- Average visibility in August: 5mi
The months with the highest visibility are April, June, July, October and November (6mi).
The months with the lowest visibility are January, February, March, May, August, September and December (5mi).
Johnson City, Tennessee, USA
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