December Weather in Lake Geneva, United States

Last updated: February 24, 2025

Experience the December weather in Lake Geneva, United States, where temperatures exhibit a striking range, soaring to a maximum of 19°C (66°F) while dipping to a chilling -22°C (-7°F). The average temperature hovers around -1°C (31°F), offering a brisk winter atmosphere. With 52 mm (2.1 in) of precipitation spread over 7 days, expect a mix of snow-covered landscapes and frosty conditions. The humidity level sits at a substantial 81%, adding to the frosty charm of the season. Embrace the beauty of winter in this picturesque lakeside destination!

December Temperature in Lake Geneva

In December, Lake Geneva experiences a striking transition into winter, with temperatures hovering between -22°C (-7°F) and a brisk 19°C (66°F). The average temperature dips to -1°C (31°F), marking one of the colder months of the year. As the region moves from the milder autumn months into the heart of winter, this notable chill is complemented by the beauty of frost-covered landscapes. The frigid conditions set the stage for a serene and picturesque setting, ideal for cozying up by the fire or engaging in winter sports. Overall, December is a month where the temperature drop reminds visitors that winter has firmly arrived in Lake Geneva.

December Weather in Lake Geneva: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Lake Geneva, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec232537465970757266523731
Data source: Temperature data for Lake Geneva 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 Lake Geneva

As December rolls into Lake Geneva, the region experiences a modest decline in precipitation, totaling 52 mm (2.1 in) over just 7 days of rainfall. This marks a notable dip from the wetter months of spring and early fall, where values peaked at over 150 mm in May and 119 mm in October. Interestingly, while December's precipitation is lower than many months, it maintains a consistent rhythm similar to November's 49 mm; both months have fewer rainy days, creating a tranquil winter atmosphere. The trend reveals a gradual transition into the colder months, with precipitation tapering off as the community braces for winter's embrace while still benefiting from enough moisture to sustain the surrounding landscape.

December Precipitation Trends in Lake Geneva

The chart displays monthly precipitation patterns in Lake Geneva, 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.
JanFebMarAprMayJunJulAugSepOctNovDec61586611015411584911041194952
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lake Geneva

In the picturesque region of Lake Geneva, United States, December ushers in a humidity level of 81%, continuing the trend of relatively high moisture that characterizes the winter months. From January to April, humidity remains consistently high at 85%, creating a season of crisp air that enhances the winter landscape. As the year progresses into late spring and summer, humidity dips, reaching its lowest point in August at 76%. However, by November, a noticeable uptick brings humidity to 88%, setting the stage for a humid December. Overall, the humidity levels reflect a seasonal rhythm, with winter months typically showcasing higher percentages, creating a cozy atmosphere perfect for enjoying the serene beauty of Lake Geneva.

December Average Humidity in Lake Geneva

This chart illustrates the average monthly humidity levels in Lake Geneva, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Lake Geneva

In Lake Geneva, United States, the UV Index in December dips to 2, categorizing it as low, which translates to an increased burn time of 45 minutes for sun exposure. This trend of declining UV values is consistent with the transition from the intense summer months, where the index peaks at 10, compelling residents and visitors to limit their sun exposure to just 15 minutes. As we move through the year, the UV Index starts at a relatively moderate 3 in January and November, rises sharply in the spring to a high of 9 in May, and then gradually declines again, hitting its low in December. This yearly fluctuation highlights the importance of adjusting sun safety practices according to the season. For more detailed insights on UV levels throughout the year, visit Lake Geneva UV Index.

Maximum UV Index Levels in Lake Geneva for December

The chart shows the monthly maximum UV Index (UVI) for Lake Geneva 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.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: Lake Geneva 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.

December Sunshine in Lake Geneva

As December wraps up the year in Lake Geneva, there’s a noticeable trend in the region's sunshine hours, capturing the essence of winter's embrace. While daylight diminishes compared to the vibrant summer months—where July shines with a peak of 360 hours—December still gifts residents with 177 hours of gentle sunlight, offering a tranquil reprieve from the colder climate. This month serves as a bridge between the fading brilliance of fall and the frosty stillness of winter, maintaining a steady rhythm in sun hours that reflects the gradual transition into the new year. Even as days grow shorter, each ray of sunlight stands as a reminder of the warmth and beauty that awaits in the coming months.

Monthly Sunshine Duration in Lake Geneva: December Highlighted

The December sunshine duration represents the total number of hours Lake Geneva experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec121h185h236h243h279h326h360h336h277h207h190h177h
Data source: Lake Geneva December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lake Geneva During December

In December, Lake Geneva experiences a 33% chance of sunny weather, which is relatively modest compared to the higher probabilities seen in late summer and early fall. This month often marks a transition; while the sun shines on nearly half the days in August and September, the onset of winter brings shorter days and often overcast skies. Interestingly, December's sunshine likelihood is not far off from the earlier winter months, such as January, which sees only a 22% chance of sunny days. As the year draws to a close, it's clear that the potential for sunny weather diminishes, yet December's slightly elevated percentage suggests there's still a glimmer of sunshine waiting to break through the winter clouds.

Percentage of Sunny Days in December in Lake Geneva

The chart illustrates the percentage of sunny days in Lake Geneva throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Lake Geneva experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%34%45%37%34%46%45%47%57%32%43%33%
Data source: Lake Geneva December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lake Geneva in December

In Lake Geneva, the rhythm of daylight unfolds dramatically through the seasons, culminating in December with a modest 9 hours of light. This winter month mirrors its counterpart in November, signaling the onset of shorter days as sunlight wanes. As the year progresses from winter to spring, each month adds an hour, reaching a peak of 15 hours in the vibrant days of June. Throughout the summer, the daylight gradually decreases, leading back to the 9 hours observed in both December and November. This cyclical pattern not only enhances the beauty of Lake Geneva’s seasonal changes but also invites residents and visitors alike to embrace the unique charms that each month brings, from the cozy winter evenings to the long, sun-drenched summer days.

Average Daylight Hours in Lake Geneva for December

The chart illustrates the variation in daylight duration in Lake Geneva throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 27m10h 34m11h 58m13h 24m14h 37m15h 13m14h 53m13h 48m12h 25m11h9h 45m9h 6m
Data source: Lake Geneva daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Lake Geneva

As December settles over Lake Geneva, the winds pick up, averaging 4.0 m/s (9 mph)—a notable increase from the calmer breezes of summer months. This late-autumn gustiness aligns with a gradual upward trend observed as the year winds down, peaking during the colder months. While wind speeds dip to their lowest in August and July, December's values are reminiscent of the higher speeds recorded in March and November, bringing a lively energy to the lakefront. As the year concludes, the crisp December winds invigorate the scenic landscape, heralding the chill of winter ahead.

Average December Wind Speed in Lake Geneva

The chart displays monthly wind speed patterns in Lake Geneva, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.43.74.23.63.53.13.02.53.43.44.04.0 m/s
Data source: Lake Geneva December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Lake Geneva Compares to Other Months

The weather in Lake Geneva changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Lake Geneva and find detailed weather information for every month.

In December, the weather experiences a wider temperature range, with minimums dipping to -22°C (-7°F) and maximums reaching up to 19°C (66°F), resulting in an average temperature of -1°C (31°F). The month also sees precipitation levels at 52 mm (2.1 in) over about 7 days, with humidity at 81%. Conversely, January is significantly colder, featuring a minimum temperature of -32°C (-25°F) and an average of -5°C (23°F), peaking at a maximum of only 14°C (57°F). Precipitation slightly increases to 61 mm (2.4 in) across 8 days, accompanied by higher humidity at 85%. For more detailed insights into the weather during this month, you can check Lake Geneva weather in January.

December and February display notable differences in weather patterns, despite both being winter months. In December, temperatures range from a minimum of -22°C (-7°F) to a maximum of 19°C (66°F), with an average of -1°C (31°F), while February sees a chillier minimum of -33°C (-28°F) and a higher average temperature of -4°C (25°F). Precipitation is slightly higher in February at 58 mm (2.3 in) over 9 days, compared to December's 52 mm (2.1 in) over 7 days. Humidity levels also increase in February, reaching 85%, compared to December's 81%. For those curious about specific conditions, more details can be found at Lake Geneva weather in February.

In December, temperatures range from a chilling minimum of -22°C (-7°F) to a maximum of 19°C (66°F), with an average of -1°C (31°F). The month sees about 52 mm (2.1 inches) of precipitation over 7 days, accompanied by a humidity level of 81%. In contrast, March brings slightly warmer temperatures, with a minimum of -22°C (-8°F) and a maximum reaching 24°C (75°F), averaging at 3°C (37°F). Precipitation increases to 66 mm (2.6 inches) over 10 days, with humidity rising to 85%. For more specific details on weather patterns during March, you can check Lake Geneva weather in March.

When comparing the weather of December and April, there's a noticeable shift in temperatures and precipitation patterns. December experiences colder temperatures, with a minimum of -22°C (-7°F) and an average of -1°C (31°F), while April sees a significant increase, with a minimum of -8°C (17°F) and an average of 8°C (47°F). Additionally, April has a higher maximum temperature of 27°C (81°F) compared to December's max of 19°C (66°F). Precipitation is also more pronounced in April, with 110 mm (4.3 in) occurring over 14 days, compared to December's 52 mm (2.1 in) over 7 days. Humidity levels remain relatively high in both months, with December at 81% and April at 85%. For more detailed insights into April weather, you can check Lake Geneva weather in April.

December and May present stark contrasts in weather conditions. In December, temperatures can dip as low as -22°C (-7°F), with an average temperature around -1°C (31°F) and highs reaching up to 19°C (66°F). The month sees about 52 mm (2.1 in) of precipitation over roughly 7 days, accompanied by high humidity levels at 81%. In comparison, May experiences milder temperatures, with a minimum of -1°C (30°F), an average of 15°C (60°F), and maximums soaring to 34°C (93°F). However, May is wetter, accumulating 154 mm (6.0 in) of precipitation over 14 days, while humidity remains relatively stable at 78%. For more detailed information, check out the Lake Geneva weather in May.

December and June present strikingly different weather conditions. In December, temperatures can plummet as low as -22°C (-7°F), with an average of -1°C (31°F) and a maximum of 19°C (66°F). The month sees around 52 mm (2.1 in) of precipitation over about 7 days, coupled with high humidity at 81%. In contrast, June experiences much milder temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 34°C (94°F), with an average temperature of 21°C (71°F). This summer month registers higher precipitation at 115 mm (4.5 in) across 13 days, while humidity remains relatively consistent at 80%. For a more detailed look at the June weather, visit Lake Geneva weather in June.

In December, the weather can be quite frigid, with temperatures ranging from a minimum of -22°C (-7°F) to a maximum of 19°C (66°F), and an average temperature hovering around -1°C (31°F). This month also sees a fair amount of precipitation, totaling 52 mm (2.1 in) over approximately 7 days, accompanied by high humidity levels of 81%. In contrast, July brings a much warmer climate, with temperatures ranging from a minimum of 12°C (54°F) to a peak of 34°C (93°F), and an average of 24°C (75°F). July experiences more precipitation overall, with 84 mm (3.3 in) spread across about 10 days, while humidity levels are slightly lower at 78%. For more detailed insights, you can check Lake Geneva weather in July.

December and August present strikingly different weather conditions. In December, temperatures can plunge as low as -22°C (-7°F), with an average temperature of -1°C (31°F) and highs reaching only 19°C (66°F). The month is marked by higher humidity levels at 81% and moderate precipitation, totaling 52 mm (2.1 in) over approximately 7 days. In contrast, August offers a more pleasant climate, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 34°C (93°F) and an average temperature of 22°C (72°F). Precipitation in August is greater at 91 mm (3.6 in) spread across around 11 days, while humidity is slightly lower at 76%. For more detailed insights, you can visit Lake Geneva weather in August.

December and September exhibit stark contrasts in weather characteristics. In December, temperatures can plunge to a minimum of -22°C (-7°F), with an average of -1°C (31°F) and a maximum of 19°C (66°F), creating a cold and often harsh climate. This month also experiences 52 mm (2.1 in) of precipitation over about 7 days, accompanied by relatively high humidity at 81%. In contrast, September welcomes milder temperatures, ranging from a minimum of 2°C (37°F) to a maximum of 33°C (92°F), with an average of 19°C (66°F). The month is wetter, with 104 mm (4.1 in) of precipitation spread over approximately 9 days, and slightly lower humidity at 79%. For a more detailed view of what to expect during this time, check out Lake Geneva weather in September.

December weather is notably colder than October, with average temperatures in December hovering around -1°C (31°F), compared to a milder average of 11°C (53°F) in October. While December experiences a maximum temperature of 19°C (66°F), October can reach as high as 30°C (86°F). Precipitation levels are higher in October, with 119 mm (4.7 in) over 13 days, versus December's 52 mm (2.1 in) over 7 days. Humidity remains relatively similar, at 81% in December and 83% in October. For a detailed look at the October weather, you can explore Lake Geneva weather in October.

In comparing the weather of December and November, December experiences slightly colder temperatures with a minimum of -22°C (-7°F) and an average of -1°C (31°F), whereas November's temperatures range from a minimum of -16°C (4°F) to an average of 3°C (37°F). Despite both months having similar levels of precipitation—52 mm (2.1 in) in December and 49 mm (1.9 in) in November—December's humidity is slightly lower at 81% compared to November's 88%. Additionally, November offers a higher maximum temperature of 24°C (75°F) against December's maximum of 19°C (66°F). For more detailed insights on November's weather, you can visit Lake Geneva weather in November.

Compare Lake Geneva's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Lake Geneva

December in Lake Geneva brings a distinct chill that sets it apart from the milder months of the year. With average temperatures plunging to around -1°C, visitors can expect a stark contrast to the warmth of autumn, embracing a wintry atmosphere that often includes light snowfall and increased humidity levels. While precipitation is consistent, with about 52 mm spread over seven days, the cold can make even a modest amount feel more pronounced. This month is ideal for those looking to experience the serene beauty of a snow-blanketed landscape. Embrace the seasonal shift and discover more about the region’s weather patterns at Lake Geneva Climate.