Houston, TX Climate & Monthly Averages
The climate of Houston
Houston is genuinely wet: 75.3 inches (1914 mm) falls in an average year, across 165 days that carry about 11.6 mm each when they come. Temperatures are the calmer variable, running 62°F (17°C) to 92°F (33°C) between January and August.
Climate quick facts
- Hottest month: August - highs near 92°F (33°C)
- Coldest month: January - highs near 62°F (17°C)
- Decade extremes (2015-2024): 107°F (42°C) high · 12°F (-11°C) low
- Wettest month: May (17 rainy days) · Sunniest: June (11.0 h sun/day)
- Climate type: humid subtropical
- Annual swing: 17°C between the average warmest and coolest month · day to night: 9°C
- Months averaging 30°C or hotter: 4
- Average humidity: 77%
Temperatures through the year
January sits at the other end of the year: 62°F (17°C) by day, 45°F (7°C) at night. At its warmest, in August, Houston runs to 92°F (33°C) in the afternoon and back to 77°F (25°C) by dawn. Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is November through December.
Rain, sun and snow
Snowfall is rare but not unheard of. Sunshine averages 8.8 hours a day over the year, peaking in June at 11.0 hours. The gridded 2015-2024 daily record for this location tops out at 107°F (42°C) and bottoms at 12°F (-11°C) - decade extremes, not all-time station records.
How Houston compares
- Annual precipitation is 75.3 inches (1914 mm) - wetter than 91% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 62° | 45° | 11 | 5.7 in | 7.0 h/day | 10.4 h | 36% | 73% |
| February | 67° | 49° | 12 | 3.8 in | 6.8 h/day | 11.1 h | 41% | 77% |
| March | 73° | 57° | 14 | 5.4 in | 7.6 h/day | 11.9 h | 47% | 77% |
| April | 78° | 62° | 14 | 6.8 in | 8.8 h/day | 12.9 h | 48% | 77% |
| May | 84° | 69° | 17 | 8.8 in | 9.6 h/day | 13.6 h | 54% | 80% |
| June | 89° | 74° | 16 | 7.2 in | 11.0 h/day | 14.0 h | 55% | 79% |
| July | 91° | 76° | 16 | 7.2 in | 11.0 h/day | 13.9 h | 53% | 79% |
| August | 92° | 77° | 17 | 7.2 in | 10.9 h/day | 13.2 h | 55% | 77% |
| September | 87° | 73° | 14 | 7.3 in | 9.8 h/day | 12.3 h | 48% | 78% |
| October | 81° | 64° | 10 | 5.5 in | 9.2 h/day | 11.4 h | 33% | 73% |
| November | 71° | 55° | 10 | 4.5 in | 7.5 h/day | 10.6 h | 35% | 76% |
| December | 67° | 51° | 12 | 6.1 in | 6.7 h/day | 10.2 h | 37% | 77% |
Houston month by month
Average high and low for each month, with the bar showing where it sits in Houston's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 11 days
- Sunshine
- 7.0 h
- Daylight
- 10.4 h
February
- Rain
- 12 days
- Sunshine
- 6.8 h
- Daylight
- 11.1 h
March
- Rain
- 14 days
- Sunshine
- 7.6 h
- Daylight
- 11.9 h
April
- Rain
- 14 days
- Sunshine
- 8.8 h
- Daylight
- 12.9 h
May
- Rain
- 17 days
- Sunshine
- 9.6 h
- Daylight
- 13.6 h
June
- Rain
- 16 days
- Sunshine
- 11.0 h
- Daylight
- 14.0 h
July
- Rain
- 16 days
- Sunshine
- 11.0 h
- Daylight
- 13.9 h
August
- Rain
- 17 days
- Sunshine
- 10.9 h
- Daylight
- 13.2 h
September
- Rain
- 14 days
- Sunshine
- 9.8 h
- Daylight
- 12.3 h
October
- Rain
- 10 days
- Sunshine
- 9.2 h
- Daylight
- 11.4 h
November
- Rain
- 10 days
- Sunshine
- 7.5 h
- Daylight
- 10.6 h
December
- Rain
- 12 days
- Sunshine
- 6.7 h
- Daylight
- 10.2 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Houston
Spring (March through May)
Spring is mild and warm here - highs near 78°F (26°C), nights near 62°F (17°C), and rain falls on around 46 of the 90 days.
Summer (June through August)
Summer in Houston runs hot, with daytime highs averaging 90°F (32°C) and nights around 76°F (24°C); rain falls on around 50 of the 90 days. Daylight is generous - around 11.0 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Fall settles into easy warmth here - highs near 80°F (27°C), nights near 64°F (18°C), and rain falls on around 35 of the 90 days.
Winter (December through February)
Winter is mild here - highs near 65°F (18°C), nights near 48°F (9°C), and rain falls on around 34 of the 90 days.
Climate questions, answered
How much sun does Houston get?
What should I pack for Houston?
How long does summer last in Houston?
Is Houston a wet city?
How cold does Houston get in winter?
Best time to visit Houston
October to February is the sweet spot for Houston - warm days, manageable rainfall and plenty of daylight line up. Expect 70°F (21°C) in the afternoon and around 11 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in October.
Pack for Houston with lightweight, breathable clothing and serious sun protection, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. Note the gap between afternoon and night: August pairs 92°F (33°C) with 77°F (25°C).
Houston temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.