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
Johnson City, Tennessee, registers an average high-temperature of a still warm 82.6°F (28.1°C) at the commencement of August, closely related to the preceding month. In the month of August, Johnson City witnesses a marked temperature drop at night, averaging a low of 59.5°F (15.3°C).Heat index
The heat index value during August is estimated at a hot 89.6°F (32°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' 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 shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In August, the average relative humidity in Johnson City is 76%.Rainfall
In August, the rain falls for 17.7 days. Throughout August, 2.64" (67mm) of precipitation is accumulated. Throughout the year, in Johnson City, there are 187.8 rainfall days, and 32.76" (832mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Johnson City.Daylight
The average length of the day in August in Johnson City is 13h and 30min.On the first day of August, sunrise is at 6:36 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 7:58 pm EDT.
Sunshine
In August, the average sunshine is 10.5h.UV index
The months with the highest UV index in Johnson City are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during August translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
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?
What is the average length of the day in August in Johnson City?
When are sunrise and sunset in August in Johnson City?
How many hours of sunshine does Johnson City have in August?
When is 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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