July weather forecast
Chatham, VA

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Weather in July

July is a hot summer month in Chatham, Virginia, with an average temperature ranging between min 65.8°F (18.8°C) and max 88.7°F (31.5°C).

Temperature

Chatham registers the highest average temperatures during the month of July, with peaks of 88.7°F (31.5°C) and lows of 65.8°F (18.8°C).

Heat index

July's average heat index is calculated to be a torrid 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The least humid month is July, with an average relative humidity of 69%.

Rainfall

In July, in Chatham, Virginia, the rain falls for 16.7 days. Throughout July, 2.13" (54mm) of precipitation is accumulated. In Chatham, during the entire year, the rain falls for 158.8 days and collects up to 30.91" (785mm) of precipitation.

Snowfall

In Chatham, snow does not fall in May through October.

Daylight

In Chatham, the average length of the day in July is 14h and 23min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:40 pm. On the last day of July, sunrise is at 6:23 am and sunset at 8:24 pm EDT.

Sunshine

June and July, with an average of 10.5h of sunshine, are months with the most sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What month is the hottest in Chatham?

Chatham's warmest weather arrives in July, when temperatures average a high of 88.7°F (31.5°C) and a low of 65.8°F (18.8°C).

How hot does it get in Chatham in July?

In Chatham, 88.7°F (31.5°C) is the average high-temperature and 65.8°F (18.8°C) is the average low-temperature during July. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is calculated to be 102.2°F (39°C).

What is the least humid month in Chatham?

With an average relative humidity of 69%, July is the least humid month.

What is the average humidity in July in Chatham?

In Chatham, Virginia, the average relative humidity in July is 69%.

How much does it rain in Chatham in July?

In Chatham, in July, it is raining for 16.7 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow in Chatham?

In Chatham, snow does not fall in May through October.

How many hours of daylight does Chatham have in July?

The average day length in July in Chatham is 14h and 23min.

When are sunrise and sunset in July in Chatham?

In July, on the first day of the month, sunrise is at 6:02 am and sunset at 8:40 pm. On the last day of the month, in Chatham, sunrise is at 6:23 am and sunset at 8:24 pm EDT.

What is the month with the most sunshine in Chatham?

June and July, with an average of 10.5h of sunshine, are months with the most sunshine in Chatham, Virginia.

How many hours of sunshine does Chatham have in July?

The average sunshine duration in July in Chatham is 10.5h.

What is the month with the highest UV index in Chatham?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Chatham.

How high is the UV index in July in Chatham?

In Chatham, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Chatham, VA

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).

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Average pressure in July
Chatham, VA

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).

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Average wind speed in July
Chatham, VA

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).

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Average humidity in July
Chatham, VA

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%).

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Average rainfall in July
Chatham, VA

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").

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Average rainfall days in July
Chatham, VA

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).

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Average snowfall in July
Chatham, VA

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").

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Average snowfall days in July
Chatham, VA

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).

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Average daylight in July /
Average sunshine in July
Chatham, VA

Average daylight in July / Average sunshine in July - Chatham, VA
  • Average daylight in July: 14h and 2min

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 3min

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).

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Average sunshine days in July
Chatham, VA

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).

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Average UV index in July
Chatham, VA

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).

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Average cloud cover in July
Chatham, VA

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).

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Average visibility in July
Chatham, VA

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).

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Chatham, Virginia, USA

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