Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
The highest temperatures are recorded in July, with averages reaching a high of 91.8°F (33.2°C) and a low of 70.3°F (21.3°C).Heat index
In July, the average heat index is appraised at an extremely hot 111.2°F (44°C). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
July is the least humid month in Joanna, with an average relative humidity of 70%.Rainfall
In Joanna, during July, the rain falls for 16 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 150.3 rainfall days, and 31.85" (809mm) of precipitation is accumulated.Snowfall
In Joanna, snow does not fall in April through November.Daylight
In July, the average length of the day in Joanna is 14h and 11min.On the first day of the month, sunrise is at 6:18 am and sunset at 8:43 pm. On the last day of July, in Joanna, sunrise is at 6:37 am and sunset at 8:29 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.7h of sunshine.UV index
In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in July leads to these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What time of the year is the hottest in Joanna?
How hot does it get in Joanna in July?
What is the least humid month in Joanna?
What is the average humidity in July in Joanna?
How much does it rain in Joanna in July?
When it does not snow in Joanna?
What is the average length of the day in July in Joanna?
When is the sunrise / sunset in July in Joanna?
What month has the most sunshine in Joanna?
How many hours of sunshine does Joanna have in July?
What is the UV index reading in July in Joanna?
Average temperature in July
Joanna, SC
- Average high temperature in July: 91.8°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in July: 70.3°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure in July
Joanna, SC
- Average pressure in July: 30"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in July
Joanna, SC
- Average wind speed in July: 5mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in July
Joanna, SC
- Average humidity in July: 70%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in July
Joanna, SC
- Average rainfall in July: 2.72"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in July
Joanna, SC
- Average rainfall days in July: 16 days
The month with the highest number of rainy days is August (16.5 days).
The months with the least rainy days are October and November (9 days).
Average snowfall in July
Joanna, SC
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in July
Joanna, SC
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in July /
Average sunshine in July
Joanna, SC
- Average daylight in July: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in July: 10h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in July
Joanna, SC
- Average sunshine days in July: 12 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (12 days).
Average UV index in July
Joanna, SC
- Average UV index in July: 6
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in July
Joanna, SC
- Average cloud cover in July: 31
The months with the most cloud cover are February and December (Cloud cover 44).
The months with the least cloud cover are June, July and October (Cloud cover 31).
Average visibility in July
Joanna, SC
- Average visibility in July: 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).
Joanna, South Carolina, USA
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