August weather forecastGreenfields, TN
August
Weather in August
The last month of the summer, August, is another warm month in Greenfields, Tennessee, with an average temperature varying between 85.3°F (29.6°C) and 60.6°F (15.9°C).Temperature
Entering August, the average high-temperature is recorded at a still warm 85.3°F (29.6°C), exhibiting a minimal shift from July's 85.8°F (29.9°C). Greenfields, during the nights of August, registers a substantial plunge from the daytime high, averaging at a refreshing 60.6°F (15.9°C).Heat index
August's mean heat index is estimated at a sweltering 95°F (35°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The months with the lowest humidity are July through September and November, with an average relative humidity of 74%.Rainfall
In August, in Greenfields, the rain falls for 13.9 days. Throughout August, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 147.1 rainfall days, and 23.46" (596mm) of precipitation is accumulated.Snowfall
In Greenfields, snow does not fall in May through October.Daylight
In Greenfields, the average length of the day in August is 13h and 31min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:35 pm. On the last day of August, sunrise is at 7:01 am and sunset at 7:59 pm EDT.
Sunshine
The average sunshine in August is 10.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In August, a daily UV index of 6 turns into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Greenfields, TN
- Average high temperature in August: 85.3°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in August: 60.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in August
Greenfields, TN
- Average pressure in August: 30.02"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
Greenfields, TN
- Average wind speed in August: 3.8mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in August
Greenfields, TN
- Average humidity in August: 74%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August, September and November (74%).
Average rainfall in August
Greenfields, TN
- Average rainfall in August: 1.5"
The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in August
Greenfields, TN
- Average rainfall days in August: 13.9 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is November (8 days).
Average snowfall in August
Greenfields, TN
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Greenfields, TN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Greenfields, TN
- Average daylight in August: 13h and 30min
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 30min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in August
Greenfields, TN
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in August
Greenfields, TN
- Average UV index in August: 6
The months with the highest UV index are May, 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
Greenfields, TN
- Average cloud cover in August: 28
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Greenfields, TN
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
