July weather forecastChatham, VA
July
Weather in July
July in Chatham, Virginia, is a tropical summer month, with an average temperature fluctuating between 88.7°F (31.5°C) and 65.8°F (18.8°C).Temperature
Chatham's temperatures peak on average in July, reaching 88.7°F (31.5°C) at their highest and 65.8°F (18.8°C) at their lowest.Heat index
July's average heat index is appraised at a sweltering 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
With an average relative humidity of 69%, July is the least humid month.Rainfall
In Chatham, Virginia, in July, it is raining for 16.7 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 158.8 rainfall days, and 30.91" (785mm) of precipitation is accumulated.Snowfall
In Chatham, snow does not fall in May through October.Daylight
The average length of the day in July is 14h and 23min.On the first day of July, sunrise is at 6:02 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 8:24 pm EDT.
Sunshine
The months with the most sunshine are June and July, with an average of 10.5h of sunshine.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In July, the maximum UV index of 6 translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Chatham, VA
- Average high temperature in July: 88.7°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in July: 65.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in July
Chatham, VA
- Average pressure in July: 30"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in July
Chatham, VA
- Average wind speed in July: 4.5mph
The windiest months (with the highest average wind speed) are February and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in July
Chatham, VA
- Average humidity in July: 69%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in July
Chatham, VA
- Average rainfall in July: 2.13"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in July
Chatham, VA
- Average rainfall days in July: 16.7 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in July
Chatham, VA
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Chatham, VA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Chatham, VA
- Average daylight in July: 14h and 24min
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 July: 10h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in July
Chatham, VA
- Average sunshine days in July: 11.3 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in July
Chatham, VA
- 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
Chatham, VA
- Average cloud cover in July: 31
The months with the most cloud cover are February and March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in July
Chatham, VA
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
