July weather forecast
McKinney, TX

Weather in July

July, the same as June, in McKinney, Texas, is a hot summer month, with temperature in the range of an average high of 93.9°F (34.4°C) and an average low of 75°F (23.9°C).

Temperature

In McKinney, the average high-temperature in July is almost the same as in June - a still hot 93.9°F (34.4°C). The average low-temperature, in McKinney, is 75°F (23.9°C).

Heat index

In July, the average heat index is appraised at a burning hot 113°F (45°C). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, pregnancy, metabolic differences). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In McKinney, Texas, the average relative humidity in July is 64%.

Rainfall

In July, in McKinney, the rain falls for 12.7 days. Throughout July, 2.6" (66mm) of precipitation is accumulated. In McKinney, during the entire year, the rain falls for 144.7 days and collects up to 33.54" (852mm) of precipitation.

Snowfall

March through October are months without snowfall.

Daylight

In McKinney, the average length of the day in July is 14h and 5min.
On the first day of the month, sunrise is at 6:21 am and sunset at 8:39 pm. On the last day of July, in McKinney, sunrise is at 6:38 am and sunset at 8:26 pm CDT.

Sunshine

In McKinney, the average sunshine in July is 10.8h.

UV index

The months with the highest UV index in McKinney are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in July interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in July in McKinney?

In July, in McKinney, Texas, the average high-temperature is 93.9°F (34.4°C), and the average low-temperature is 75°F (23.9°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in July is appraised at 113°F (45°C).

What is the average humidity in July in McKinney?

In McKinney, Texas, the average relative humidity in July is 64%.

How many days does it rain in July in McKinney?

In July, in McKinney, Texas, the rain falls for 12.7 days. Throughout July, 2.6" (66mm) of precipitation is accumulated.

When it does not snow in McKinney?

In McKinney, Texas, snow does not fall in March through October.

How many hours of daylight does McKinney have in July?

The average day length in July is 14h and 5min.

When are sunrise and sunset in July in McKinney?

In July, on the first day of the month, sunrise is at 6:21 am and sunset at 8:39 pm. On the last day of the month, in McKinney, sunrise is at 6:38 am and sunset at 8:26 pm CDT.

How many hours of sunshine does McKinney have in July?

In McKinney, Texas, the average sunshine duration in July is 10.8h.

When is the highest UV index in McKinney?

June through August, with an average maximum UV index of 7, are months with the highest UV index in McKinney.

What is the UV index intensity in July in McKinney?

In McKinney, Texas, the average daily maximum UV index in July is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
McKinney, TX

Average temperature in July - McKinney, TX
  • Average high temperature in July: 93.9°F

The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (53.2°F).

  • Average low temperature in July: 75°F

The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in July
McKinney, TX

Average pressure in July - McKinney, TX
  • Average pressure in July: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in July
McKinney, TX

Average wind speed in July - McKinney, TX
  • Average wind speed in July: 7.2mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

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Average humidity in July
McKinney, TX

Average humidity in July - McKinney, TX
  • Average humidity in July: 64%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in July
McKinney, TX

Average rainfall in July - McKinney, TX
  • Average rainfall in July: 2.6"

The wettest month (with the highest rainfall) is October (4.17").
The driest month (with the least rainfall) is January (1.77").

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Average rainfall days in July
McKinney, TX

Average rainfall days in July - McKinney, TX
  • Average rainfall days in July: 12.7 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in July
McKinney, TX

Average snowfall in July - McKinney, TX
  • Average snowfall in July: 0"

The month with the highest snowfall is February (0.71").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

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Average snowfall days in July
McKinney, TX

Average snowfall days in July - McKinney, TX
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (1.3 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
McKinney, TX

Average daylight in July / Average sunshine in July - McKinney, TX
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 14h and 19min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in July: 10h and 48min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in July
McKinney, TX

Average sunshine days in July - McKinney, TX
  • Average sunshine days in July: 16.4 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is September (13.6 days).

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Average UV index in July
McKinney, TX

Average UV index in July - McKinney, TX
  • Average UV index in July: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).

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Average cloud cover in July
McKinney, TX

Average cloud cover in July - McKinney, TX
  • Average cloud cover in July: 23

The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in July
McKinney, TX

Average visibility in July - McKinney, TX
  • 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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