January Weather in Houston

Last updated: March 2, 2024

The weather in Houston, United States, during January is characterized by an average temperature of -12°C (11°F). Highs can soar to 4°C (39°F), while lows may dip to -28°C (-18°F). Typically, the humidity level in Houston throughout January hovers around 94%.

-28°C (-18°F)

Minimum temperature

-12°C (11°F)

Average temperature

4°C (39°F)

Maximum temperature

94%

Humidity

Precipitation and Sunshine hours

In January, Houston averages 38 mm (1.5 inches) of rainfall, typically over the course of 7 rainy days. The month enjoys an average of 6 hours 23 minutes of daylight, with the sun shining for approximately 1 hours 46 minutes each day. Additionally, there is a 31% probability of sunny days during this period.

38 mm (1.5 inches)

Precipitation

7 rainy days

Rainy days

1 hours 46 minutes

Sunshine hours

31%

Chance of sun

UV Index

In January, the UV Index in Houston reaches a maximum of 1, indicating a level of Low exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 45 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 0 0 0 1 1 1 1 1 1 1 0 0 0
Exposure Low
Time to burn 45 min

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