Houston
Texas, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and Climate
Houston, TX

A beautiful park in Root square overlooking the central business district of Houston, Texas
A beautiful park in Root square overlooking the central business district of Houston, Texas
  • The average high temperature in December: 17.9°C

The warmest month (with the highest average high temperature) is August (34.7°C).
The month with the lowest average high temperature is January (17.2°C).

  • The average low temperature in December: 7°C

The month with the highest average low temperature is July (23.9°C).
The coldest month (with the lowest average low temperature) is January (6.2°C).

  • The average humidity in December: 75.5%

The month with the highest relative humidity is September (76.8%).
The month with the lowest relative humidity is March (72.7%).

  • The average rainfall in December: 95mm

The wettest month (with the highest rainfall) is June (150.6mm).
The driest month (with the lowest rainfall) is February (81.3mm).

  • The average rainfall days in December: 9.5 days

The month with the highest number of rainy days is June (10.6 days).
The month with the lowest number of rainy days is April (6.8 days).

  • The average daylight in December: 10h

Months with the longest days are May, June and July (Average daylight: 14h).
Months with shortest days are January and December (Average daylight: 10h).

  • The average sunshine in December: 4.8h

The month with most sunshine is July (Average sunshine: 9.5h).
The month with least sunshine is January (Average sunshine: 4.6h).

  • The average UV index in December: 4

Months with the highest UV index are June and July (UV index 11).
Months with the lowest UV index are January and December (UV index 4).

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