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 warmest month is July, with an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 72°F (22.2°C).Heat index
For most parts of July, the heat index is estimated at an extremely hot 107.6°F (42°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Heat index data is primarily for areas with shade and subjected to light winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
January, March, July and November, with an average relative humidity of 71%, are the least humid months.Rainfall
In Jefferson, South Carolina, in July, it is raining for 19 days, with typically 3.11" (79mm) of accumulated precipitation. In Jefferson, South Carolina, during the entire year, the rain falls for 166.4 days and collects up to 33.7" (856mm) of precipitation.Snowfall
In Jefferson, South Carolina, snow does not fall in April through October.Daylight
In July, the average length of the day in Jefferson is 14h and 13min.On the first day of July in Jefferson, sunrise is at 6:12 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 8:24 pm EDT.
Sunshine
With an average of 10.9h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index in Jefferson are June and July, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 7 during July translates into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in Jefferson?
How hot is it in Jefferson in July?
What is the least humid month in Jefferson?
What is the average humidity in July in Jefferson?
How much does it rain in Jefferson in July?
When it does not snow in Jefferson?
How many hours of daylight does Jefferson have in July?
When is the sunrise / sunset in July in Jefferson?
What month has the most sunshine in Jefferson?
How many hours of sunshine does Jefferson have in July?
When is the highest UV index in Jefferson?
How high is the UV index in July in Jefferson?
Average temperature in July
Jefferson, SC
- Average high temperature in July: 90.1°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.2°F).
- Average low temperature in July: 72°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in July
Jefferson, SC
- Average pressure in July: 29.99"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in July
Jefferson, SC
- Average wind speed in July: 5.7mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in July
Jefferson, SC
- Average humidity in July: 71%
The months with the highest relative humidity are May and December (75%).
The months with the lowest relative humidity are January, March, July and November (71%).
Average rainfall in July
Jefferson, SC
- Average rainfall in July: 3.11"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is October (2.17").
Average rainfall days in July
Jefferson, SC
- Average rainfall days in July: 19 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in July
Jefferson, SC
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Jefferson, SC
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Jefferson, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in July
Jefferson, SC
- Average sunshine days in July: 9.7 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in July
Jefferson, SC
- Average UV index in July: 7
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in July
Jefferson, SC
- Average cloud cover in July: 29
The months with the most cloud cover are February, March and December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in July
Jefferson, 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).
Jefferson, South Carolina, USA
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