December Weather in Willowbrook

Last updated: March 2, 2024

The weather in Willowbrook, United States, during December is characterized by an average temperature of 13°C (57°F). Highs can soar to 26°C (79°F), while lows may dip to 4°C (39°F). Typically, the humidity level in Willowbrook throughout December hovers around 71%.

4°C (39°F)

Minimum temperature

13°C (57°F)

Average temperature

26°C (79°F)

Maximum temperature

71%

Humidity

Precipitation and Sunshine hours

In December, Willowbrook averages 76 mm (3.0 inches) of rainfall, typically over the course of 5 rainy days. The month enjoys an average of 9 hours 55 minutes of daylight, with the sun shining for approximately 7 hours 14 minutes each day. Additionally, there is a 49% probability of sunny days during this period.

76 mm (3.0 inches)

Precipitation

5 rainy days

Rainy days

7 hours 14 minutes

Sunshine hours

49%

Chance of sun

UV Index

In December, the UV Index in Willowbrook reaches a maximum of 4, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 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 1 1 2 3 4 4 3 2 1 1 0 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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