Houston, TX weather in July
Houston is hot and oppressively humid in July, with some rain: highs average 93°F and nights drop to about 77°F. Rain falls on about 9 days. This is the peak of the warm season in Houston. Midday heat is the main thing to plan around.
- Normal high
- 93°F
- Normal low
- 77°F
- Wet days
- 9
- 4.6 in total
- Muggy days
- 31
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 92°F | 94°F |
| Normal low | 76°F | 77°F |
| Chance of a wet day | 33% | 29% |
| Sunrise / sunset | 6:24 am / 8:26 pm | 6:40 am / 8:15 pm |
| Daylight | 14.0 h | 13.6 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical July day
- 6 am76°Fdew point 74°F
- 9 am85°Fdew point 75°F
- Noon90°Fdew point 72°F
- 3 pm91°Fdew point 71°F
- 6 pm88°Fdew point 72°F
- 9 pm82°Fdew point 73°F
NOAA hourly normals (local standard time) from Houston Intercont Airport (15 mi away); average wind 6 mph; clear or few clouds in 9% of daytime hours, mostly cloudy or overcast in 51%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more26 of 31
- Muggy daysdaily mean dew point 65°F or more31 of 31
- Wet daysat least 0.01 in of rain or melted snow9 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 4.6 in; a dry July brings about 2.3 in and a wet one about 6.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more.
How July varies from year to year
- Warmest July, 1991-20201998: average high 97°F
- Coolest July2007: average high 89°F
- Wettest July2005: 13.0 in
- Driest July1996: 0.2 in
- Highest reading103°F (July 5, 2009)
- Lowest reading68°F (July 29, 1994)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 91°F | 93°F | 94°F |
| Normal low | 75°F | 77°F | 77°F |
| Wet days | 10 | 9 | 10 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 14.0 h | 13.8 h | 13.2 h |
Highs change by +2°F from June and +1°F into August.
Nearby alternatives in July
- Drier: College Station, TX83 mi · high 95°F · 5 wet days
How Houston ranks in July
- Normal high88th warmest of 378 cities; 34th of 38 in Texas
- Wet days187th driest of 378
- Comfortable days325th most of 340
What to pack for Houston in July
- Light, breathable clothing – highs near 93°F and about 31 muggy days
- A rain jacket or umbrella – rain on about 9 days
Heating and cooling
July has 0 heating degree days and 612 cooling degree days (base 65°F), 14% of the year's total heating and cooling demand.
Questions
How hot is Houston in July?
The normal high is 93°F and the normal low is 77°F. From 1991 to 2020 the hottest July reading was 103°F (July 5, 2009).
Does it rain a lot in Houston in July?
About 9 days in July have at least 0.01 in of precipitation, and the normal total is 4.6 in. The wettest July in 1991-2020 was in 2005 (13.0 in); the driest was in 1996 (0.2 in).
Is July a good time to visit Houston?
July ranks 11th of 12 months on our comfort score for Houston (35 out of 100). It has almost no comfortable days and about 26 days at 90°F or hotter. The best month is March.
Where the numbers come from
- Temperature, rain and frost dates: Houston Hobby Airport (USW00012918), 9.9 mi SSE of the city center, 44 ft . NOAA normals and daily records, 1991-2020.
- Snowfall, snow depth, humidity and wind by hour and cloud cover: Houston Intercont Airport (USW00012960), 15 mi N of the city center, 95 ft (59 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: G Bush Intercontinental Airport/Houston Airport (722430-12960), 15 mi N of the city center, 90 ft (54 ft higher than the city). Hourly observations, 1991-2020.