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December Weather in Ulysses, United States

Last updated: June 24, 2025

In December, the average temperature in Ulysses, United States hovers around -1°C (30°F). Expect chilly extremes, with minimums dipping to -22°C (-8°F) and occasional highs reaching 15°C (59°F). Precipitation is not uncommon, averaging 86 mm (3.4 in) over 13 days, while the average humidity sits high at 88%.

December Temperature in Ulysses

In December in Ulysses, the average temperature is -1°C (30°F), with maximums reaching 15°C (59°F) and minimums dipping to as low as -22°C (-8°F). Be prepared for a wide range of temperatures, making layering essential for your travels.

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

The chart illustrates December temperature patterns in Ulysses, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ulysses, December typically has an average temperature of -1°C (30°F), with highs reaching up to 15°C (59°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec242734445664706861513730
Data source: Temperature data for Ulysses 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 Ulysses

In Ulysses, in December, the precipitation amount is 86 mm (3.4 in) over the course of 13 days.

December Precipitation Trends in Ulysses

The chart displays monthly precipitation patterns in Ulysses, 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 Ulysses, December typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7390801141259613290911248286
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ulysses

In Ulysses in December humidity is 88%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that penetrates through your layers, making travel uncomfortable as every gust of wind becomes a sharp reminder of the cold and damp air surrounding you.

December Average Humidity in Ulysses

This chart illustrates the average monthly humidity levels in Ulysses, 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 Ulysses is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ulysses

In Ulysses 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 Ulysses, you can visit Hourly UV Index in Ulysses.

Maximum UV Index Levels in Ulysses for December

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

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

This table compares monthly weather conditions in Ulysses, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (24°F)73 mm (2.9 inches)89%moderate
February Weather-3°C (27°F)90 mm (3.5 inches)90%moderate
March Weather1°C (34°F)79 mm (3.1 inches)89%high
April Weather7°C (45°F)114 mm (4.5 inches)88%very high
May Weather13°C (57°F)125 mm (4.9 inches)80%very high
June Weather18°C (65°F)96 mm (3.8 inches)79%very high
July Weather21°C (70°F)132 mm (5.2 inches)74%very high
August Weather20°C (68°F)90 mm (3.5 inches)64%very high
September Weather16°C (62°F)91 mm (3.6 inches)67%very high
October Weather11°C (52°F)124 mm (4.9 inches)81%high
November Weather3°C (37°F)82 mm (3.2 inches)89%moderate
December Weather-1°C (30°F)86 mm (3.4 inches)88%low

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