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December Weather in Moroni, United States

Last updated: June 24, 2025

In December, the average temperature in Moroni, United States hovers around -5°C (23°F), with minimums dipping as low as -24°C (-10°F) and maximums reaching up to 12°C (53°F). Expect around 53 mm (2.1 in) of precipitation spread over 10 days, while the air remains quite humid with an average of 87% humidity.

December Temperature in Moroni

In December in Moroni, the average temperature is -5°C (23°F), with maximums reaching up to 12°C (53°F) and minimums dropping as low as -24°C (-10°F). Travelers should be prepared for a wide temperature range and pack accordingly for both chilly and mild conditions.

December Weather in Moroni: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Moroni, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Moroni, December typically has an average temperature of -5°C (23°F), with highs reaching up to 12°C (53°F) and lows dropping to around -24°C (-10°F).
JanFebMarAprMayJunJulAugSepOctNovDec222432384863706858413323
Data source: Temperature data for Moroni generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Moroni

In Moroni in December, the precipitation amount is 53 mm (2.1 in) spread over a duration of 10 days.

December Precipitation Trends in Moroni

The chart displays monthly precipitation patterns in Moroni, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Moroni, December typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec565960436318422531403653
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Moroni

In Moroni in December humidity is 87%. With an average temperature of -5°C (23°F), this humidity feels like a heavy, damp blanket enveloping you, making even the cold air seem more biting and clammy, which can be quite uncomfortable for traveling.

December Average Humidity in Moroni

This chart illustrates the average monthly humidity levels in Moroni, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Moroni is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%77%70%54%45%37%34%47%67%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Moroni

In Moroni in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Moroni for better planning.

Maximum UV Index Levels in Moroni for December

The chart shows the monthly maximum UV Index (UVI) for Moroni in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Moroni typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110754
Data source: Moroni December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Moroni Compares to Other Months

Weather in Moroni varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Moroni, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Moroni, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)56 mm (2.2 inches)87%moderate
February Weather-5°C (24°F)59 mm (2.3 inches)88%high
March Weather0°C (32°F)60 mm (2.4 inches)77%very high
April Weather3°C (38°F)43 mm (1.7 inches)69%very high
May Weather9°C (49°F)63 mm (2.5 inches)54%extreme
June Weather17°C (63°F)18 mm (0.7 inches)45%extreme
July Weather21°C (70°F)42 mm (1.7 inches)37%extreme
August Weather20°C (68°F)25 mm (1.0 inches)34%extreme
September Weather15°C (59°F)31 mm (1.2 inches)47%very high
October Weather5°C (42°F)40 mm (1.6 inches)67%high
November Weather1°C (34°F)36 mm (1.4 inches)82%moderate
December Weather-5°C (23°F)53 mm (2.1 inches)87%moderate

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