July weather forecastMcHarg, TN
July
Weather in July
July, the same as June, is a moderately hot summer month in McHarg, Tennessee, with an average temperature fluctuating between 64°F (17.8°C) and 84.9°F (29.4°C).Temperature
McHarg's temperature records reveal July as the warmest month, marked by average highs of 84.9°F (29.4°C) and lows of 64°F (17.8°C).Heat index
Throughout July, the heat index is evaluated at a very hot 95°F (35°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Data suggests that the heat index is set for environments in shade and with a light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In July, the average relative humidity is 78%.Rainfall
In McHarg, during July, the rain falls for 19.8 days and regularly aggregates up to 4.65" (118mm) of precipitation. Throughout the year, there are 190.7 rainfall days, and 47.32" (1202mm) of precipitation is accumulated.Snowfall
In McHarg, snow does not fall in May through September.Daylight
In July, the average length of the day is 14h and 14min.On the first day of July, sunrise is at 6:27 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 8:41 pm EDT.
Sunshine
In McHarg, the average sunshine in July is 10.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 6 in July leads to these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. 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. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
McHarg, TN
- Average high temperature in July: 84.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in July: 64°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in July
McHarg, TN
- Average pressure in July: 30.01"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in July
McHarg, TN
- Average wind speed in July: 3.8mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in July
McHarg, TN
- Average humidity in July: 78%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in July
McHarg, TN
- Average rainfall in July: 4.65"
The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is September (2.91").
Average rainfall days in July
McHarg, TN
- Average rainfall days in July: 19.8 days
The months with the highest number of rainy days are June and July (19.8 days).
The month with the least rainy days is November (11.3 days).
Average snowfall in July
McHarg, TN
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
McHarg, TN
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
McHarg, TN
- Average daylight in July: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in July: 10h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in July
McHarg, TN
- Average sunshine days in July: 9.4 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8 days).
Average UV index in July
McHarg, TN
- Average UV index in July: 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 July
McHarg, TN
- Average cloud cover in July: 34
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in July
McHarg, TN
- Average visibility in July: 5mi
The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (5mi).





