Climate averages 1991–2020
Houston weather
in July.
A hot, wet month: the 2nd warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Houston: daytime highs average 32.8°C and nights cool to about 24.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 91 mm of rain on roughly 13 days, which makes July a wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 51 min on an average July day.
The nearest other city in this atlas is Pasadena (Texas), United States (17 km away). In July its highs average 32.6°C, about as warm as Houston, with 91 mm of rain.
Among the 498 cities listed in the United States, Houston ranks joint 100th of 498 for the warmest July highs and joint 318th of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Houston is 2.5°C warmer than that mean.
From July to August, average highs rise by 0.5°C to 33.3°C, and monthly rainfall rises from 91 mm to 98 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Houston climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 16.7°C7.5°C | 7.5°C | 106 | 10.0 | 10.510 h |
| February | 18.7°C9.3°C | 9.3°C | 84 | 9.1 | 11.111 h |
| March | 21.9°C12.5°C | 12.5°C | 94 | 9.2 | 12.012 h |
| April | 25.4°C15.9°C | 15.9°C | 96 | 8.9 | 12.913 h |
| May | 29.1°C20.3°C | 20.3°C | 90 | 9.8 | 13.614 h |
| June | 31.7°C23.5°C | 23.5°C | 113 | 12.7 | 14.014 h |
| July, selected | 32.8°C24.4°C | 24.4°C | 91 | 12.7 | 13.914 h |
| August | 33.3°C24.5°C | 24.5°C | 98 | 13.2 | 13.213 h |
| September | 30.8°C22.1°C | 22.1°C | 118 | 11.8 | 12.412 h |
| October | 26.8°C17.4°C | 17.4°C | 105 | 8.7 | 11.511 h |
| November | 21.3°C12.1°C | 12.1°C | 103 | 8.3 | 10.711 h |
| December | 17.6°C8.6°C | 8.6°C | 105 | 9.6 | 10.310 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Pasadena (Texas), United States in JulyUnited States · 17 kmHigh 32.6°C · Low 24.6°C · 91 mm rain
- Missouri City in JulyUnited States · 23 kmHigh 32.8°C · Low 24.6°C · 89 mm rain
- Pearland in JulyUnited States · 23 kmHigh 32.6°C · Low 24.6°C · 94 mm rain
- Sugar Land in JulyUnited States · 31 kmHigh 33.0°C · Low 24.5°C · 83 mm rain
- Baytown in JulyUnited States · 37 kmHigh 32.2°C · Low 24.6°C · 99 mm rain
- League City in JulyUnited States · 38 kmHigh 31.8°C · Low 25.2°C · 94 mm rain
- Cypress in JulyUnited States · 40 kmHigh 33.3°C · Low 24.3°C · 74 mm rain
- The Woodlands in JulyUnited States · 46 kmHigh 33.5°C · Low 24.2°C · 81 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Houston) is explained once on the Houston year overview and on the Sources, method and limits page.
Pasadena (Texas), United States lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.