nomadseason

December Weather in Genoa, United States

Last updated: June 24, 2025

In December, the average temperature in Genoa, United States hovers around 2°C (36°F). Be prepared for a chilly range, with minimums dipping as low as -17°C (1°F) and occasional highs reaching up to 18°C (64°F). You'll also want to keep your umbrella handy, as precipitation averages 91 mm (3.6 in) over approximately 11 days. With an average humidity of 86%, expect a crisp and damp atmosphere during your visit!

December Temperature in Genoa

In December in Genoa, the average temperature is 2°C (36°F). Maximums can reach 18°C (64°F), and minimums can be as low as -17°C (1°F). Travelers should be prepared for a wide temperature range and pack accordingly.

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

The chart illustrates December temperature patterns in Genoa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Genoa, December typically has an average temperature of 2°C (36°F), with highs reaching up to 18°C (64°F) and lows dropping to around -17°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec303341506270757368574135
Data source: Temperature data for Genoa generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Genoa

In Genoa in December, the precipitation amount is 91 mm (3.6 in) over a period of 11 days.

December Precipitation Trends in Genoa

The chart displays monthly precipitation patterns in Genoa, 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 Genoa, December typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec87102100132117124121911031099491
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Genoa

In Genoa in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.

December Average Humidity in Genoa

This chart illustrates the average monthly humidity levels in Genoa, 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 Genoa is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Genoa

In Genoa in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Genoa, you can visit Hourly UV Index in Genoa.

Maximum UV Index Levels in Genoa for December

The chart shows the monthly maximum UV Index (UVI) for Genoa 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 Genoa typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Genoa 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 Genoa Compares to Other Months

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

This table compares monthly weather conditions in Genoa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)87 mm (3.4 inches)88%moderate
February Weather1°C (33°F)102 mm (4.0 inches)88%moderate
March Weather5°C (41°F)100 mm (3.9 inches)87%high
April Weather10°C (51°F)132 mm (5.2 inches)87%very high
May Weather17°C (62°F)117 mm (4.6 inches)81%very high
June Weather21°C (71°F)124 mm (4.9 inches)83%very high
July Weather24°C (75°F)121 mm (4.7 inches)82%very high
August Weather23°C (73°F)91 mm (3.6 inches)76%very high
September Weather20°C (68°F)103 mm (4.0 inches)77%very high
October Weather14°C (57°F)109 mm (4.3 inches)82%high
November Weather5°C (42°F)94 mm (3.7 inches)89%moderate
December Weather2°C (36°F)91 mm (3.6 inches)86%low

Compare Genoa's Climate with Cities Worldwide