December Weather in Monticello

Last updated: March 2, 2024

The weather in Monticello, United States, during December is characterized by an average temperature of 12°C (53°F). Highs can soar to 25°C (78°F), while lows may dip to -3°C (27°F). Typically, the humidity level in Monticello throughout December hovers around 88%.

-3°C (27°F)

Minimum temperature

12°C (53°F)

Average temperature

25°C (78°F)

Maximum temperature

88%

Humidity

Precipitation and Sunshine hours

In December, Monticello averages 141 mm (5.6 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 10 hours 6 minutes of daylight, with the sun shining for approximately 6 hours 24 minutes each day. Additionally, there is a 33% probability of sunny days during this period.

141 mm (5.6 inches)

Precipitation

12 rainy days

Rainy days

6 hours 24 minutes

Sunshine hours

33%

Chance of sun

UV Index

In December, the UV Index in Monticello 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 4 3 1 1 0 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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