July weather forecastMcKinney, TX
July
Weather in July
July is the hottest month of the year in McKinney, Texas, with the afternoon temperatures soaring up to a scorching 93.9°F (34.4°C) on average. The month sees fewer clouds, making room for more sunlight and rising UV indexes. On the other hand, the decrease in humidity marks the culmination of an earlier mentioned arc. Despite the high temperatures, wind speeds drop to their lowest average during this month. The rainfall, although infrequent, ordered along with occasional gusts provides a much-needed respite from the scorching heat.Temperature
The unfolding of July shows an average high-temperature of a still tropical 93.9°F (34.4°C), indicating a slight variance from June's 89.6°F (32°C). McKinney records an average low-temperature of 75°F (23.9°C) throughout the month of July.Heat index
Throughout July, the heat index is appraised at a burning hot 113°F (45°C). Remain alert: Heat exhaustion and heat cramps are predicted. Extended effort can lead to heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. 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 body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
In McKinney, the average relative humidity in July is 64%.Rainfall
In July, 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 July, the average length of the day in McKinney is 14h and 5min.On the first day of July in McKinney, sunrise is at 6:21 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 8:26 pm CDT.
Sunshine
In McKinney, Texas, 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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In July, a daily UV index of 7 turns into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in July /
Average sunshine in July
McKinney, TX
- Average daylight in July: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 18min).
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).
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).
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).
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).
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).





