Houston Weather in December – Average Temperature and Rainfall
- High
- 19.1°
- Low
- 10.2°
- Rainfall
- 154 mm
- Rainy season
- 11d
- max
- 27.9°
- min
- -8.7°
December
- Early
- 19.2° 63.1 mm
- Mid
- 18.8° 41.8 mm
- Late
- 19.4° 48.9 mm
Summary
The climate figures for Houston are averaged from 2016–2025 observations (10 years). Annual rainfall averages about 1,920 mm.
The rainy season runs January–December. The wettest month is May with 234.6 mm across 16 rain days; the driest is February at just 104.3 mm.
The hottest month is August (average high 33°C) and the coolest is January (16.8°C).
The most comfortable time to visit Houston is February — less rain and milder heat.
Monthly averages
Common questions
Will it rain in Houston today?
Yes. Rain is expected around 17:00, totalling roughly 11.9 mm.
How hot is it in Houston today?
Between 25°C and 34°C, with a felt maximum of 40°C.
What is the weather in Houston tomorrow?
Tomorrow: overcast, 24–34°C, with a 7% chance of rain.