July weather forecastHouston, TX
July
Weather in July
July is typically the hottest month in Houston with the mercury peaking at 93.4°F (34.1°C). It's a time when the city thrives under the summer sun and embraces the hustle and bustle of the season. The summer heat does not diminish the vibrancy of Houston, but rather adds to the festival-like atmosphere that envelops the city during this time. While spending extended time outdoors may be uncomfortable for some, others see it as an opportunity for water-based activities, thanks to the sultry conditions. In spite of the heat, the city's energy and the plethora of activities on offer ensure there's never a dull moment in July.Temperature
Houston's weather, upon July's arrival, documents an average high-temperature of a still tropical 93.4°F (34.1°C), nearly identical to the prior month. The month of July records an average low-temperature of 77.2°F (25.1°C).Heat index
The average heat index in July is evaluated at a blazing hot 120.2°F (49°C). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.Realize that the values for the heat index are set for shaded places and light winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In July, the average relative humidity in Houston is 73%.Rainfall
In July, in Houston, Texas, the rain falls for 17.6 days. Throughout July, 3.15" (80mm) of precipitation is accumulated. Throughout the year, there are 180.5 rainfall days, and 35.35" (898mm) of precipitation is accumulated.Snowfall
In Houston, snow does not fall in February through November.Daylight
The average length of the day in July is 13h and 50min.On the first day of the month, sunrise is at 6:24 am and sunset at 8:26 pm. On the last day of July, sunrise is at 6:40 am and sunset at 8:14 pm CDT.
Sunshine
In Houston, the average sunshine in July is 10.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 7 during July translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Houston, TX
- Average high temperature in July: 93.4°F
The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in July: 77.2°F
The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in July
Houston, TX
- Average pressure in July: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Houston, TX
- Average wind speed in July: 6.3mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is September (5.9mph).
Average humidity in July
Houston, TX
- Average humidity in July: 73%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are August and October (70%).
Average rainfall in July
Houston, TX
- Average rainfall in July: 3.15"
The wettest month (with the highest rainfall) is September (4.49").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in July
Houston, TX
- Average rainfall days in July: 17.6 days
The month with the highest number of rainy days is September (19.5 days).
The month with the least rainy days is January (11.8 days).
Average snowfall in July
Houston, TX
- Average snowfall in July: 0"
The month with the highest snowfall is December (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in July
Houston, TX
- Average snowfall days in July: 0 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in July /
Average sunshine in July
Houston, TX
- Average daylight in July: 13h and 48min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in July: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in July
Houston, TX
- Average sunshine days in July: 11.4 days
The month with the most sunshine days is January (16.3 days).
The month with the least sunshine days is September (7.9 days).
Average UV index in July
Houston, TX
- Average UV index in July: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in July
Houston, TX
- Average cloud cover in July: 29
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in July
Houston, 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).
