July weather forecast
Cary, NC

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Weather in July

July is the height of summer in Cary as it exhibits the highest temperature at 89.8°F (32.1°C). The average UV index for the month is at its peak of the year at 7, urging residents to be cautious and use sunscreen. The propensity of thunderstorm activity increases, specifically in the afternoons and evenings. Even though it records the lowest wind speed, the month doesn't necessarily feel stuffy due to the wide fluctuation in temperature. The blend of warmth, thunderstorms, and sunny skies provide a tantalizing summer experience.

Temperature

In Cary, July is the warmest month, with temperatures averaging a high of 89.8°F (32.1°C) and a low of 70.9°F (21.6°C).

Heat index

The heat index value for July is calculated to be a blistering 105.8°F (41°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. 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 quite important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The least humid month is July, with an average relative humidity of 71%.

Rainfall

In Cary, during July, the rain falls for 17.9 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 161.9 rainfall days, and 31.18" (792mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 18min.
On the first day of July, sunrise is at 6:02 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 8:20 pm EDT.

Sunshine

July has the most sunshine of the year in Cary, with an average of 10.8h of sunshine.

UV index

July is the month with the highest UV index, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during July leads to these advisories:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. 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.
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Frequently asked questions

What month is the hottest in Cary?

The highest temperatures in Cary, North Carolina, are recorded in July, with averages reaching a high of 89.8°F (32.1°C) and a low of 70.9°F (21.6°C).

How hot does it get in Cary in July?

During July, Cary experiences an average high-temperature of 89.8°F (32.1°C) and a low-temperature of 70.9°F (21.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is calculated to be 105.8°F (41°C).

What is the least humid month in Cary?

The least humid month in Cary, North Carolina, is July, with an average relative humidity of 71%.

What is the average humidity in July in Cary?

In July, the average relative humidity in Cary, North Carolina, is 71%.

How much does it rain in Cary in July?

In July, in Cary, North Carolina, the rain falls for 17.9 days. Throughout July, 2.68" (68mm) of precipitation is accumulated.

When it does not snow in Cary?

In Cary, snow does not fall in April through October.

What is the average length of the day in July in Cary?

The average day length in July is 14h and 18min.

When are sunrise and sunset in July in Cary?

In July, on the first day of the month, sunrise is at 6:02 am and sunset at 8:35 pm. On the last day of the month, in Cary, North Carolina, sunrise is at 6:22 am and sunset at 8:20 pm EDT.

What month has the most sunshine in Cary?

The month with the most sunshine in Cary is July, with an average of 10.8h of sunshine.

How many hours of sunshine does Cary have in July?

In July, the average sunshine duration in Cary, North Carolina, is 10.8h.

When is the highest UV index in Cary?

The month with the highest UV index is July, with an average maximum UV index of 7.

What is the UV index intensity in July in Cary?

The average daily maximum UV index in July in Cary is 7. A UV Index estimate of 6 to 7 represents a high health risk 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
Cary, NC

Average temperature in July - Cary, NC
  • Average high temperature in July: 89.8°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in July: 70.9°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in July
Cary, NC

Average pressure in July - Cary, NC
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in July
Cary, NC

Average wind speed in July - Cary, NC
  • Average wind speed in July: 5.3mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in July
Cary, NC

Average humidity in July - Cary, NC
  • Average humidity in July: 71%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in July
Cary, NC

Average rainfall in July - Cary, NC
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is October (2.17").

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Average rainfall days in July
Cary, NC

Average rainfall days in July - Cary, NC
  • Average rainfall days in July: 17.9 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in July
Cary, NC

Average snowfall in July - Cary, NC
  • Average snowfall in July: 0"

The month with the highest snowfall is January (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Cary, NC

Average snowfall days in July - Cary, NC
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Cary, NC

Average daylight in July / Average sunshine in July - Cary, NC
  • Average daylight in July: 14h and 2min

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 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in July
Cary, NC

Average sunshine days in July - Cary, NC
  • Average sunshine days in July: 11.3 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in July
Cary, NC

Average UV index in July - Cary, NC
  • Average UV index in July: 7

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in July
Cary, NC

Average cloud cover in July - Cary, NC
  • Average cloud cover in July: 31

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in July
Cary, NC

Average visibility in July - Cary, NC
  • 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).

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Cary, North Carolina, USA

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