Houston Weather in March – Average Temperature and Rainfall

High
23.1°
Low
13.8°
Rainfall
131 mm
Rainy season
15d
max
31.9°
min
-1.9°

March

Early
21.9°
50.3 mm
Mid
22.6°
27.9 mm
Late
24.6°
52.8 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?
No. The chance of rain today is only about 3%.
How hot is it in Houston today?
Between 14°C and 25°C, with a felt maximum of 26°C.
What is the weather in Houston tomorrow?
Tomorrow: overcast, 19–29°C, with a 4% chance of rain.

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