nomadseason

December Weather in Winona, United States

Last updated: June 24, 2025

In December, the average temperature in Winona, United States hovers around 10°C (50°F), with a minimum of -5°C (24°F) and a maximum reaching 26°C (80°F). Expect about 125 mm (4.9 in) of precipitation spread over 11 days, contributing to an average humidity of 88%. Be prepared for a mix of cool and warm days in this typically damp atmosphere!

December Temperature in Winona

In December in Winona, the average temperature is 10°C (50°F). Maximums can reach 26°C (80°F), while minimums can dip as low as -5°C (24°F). Be prepared for a range of temperatures when traveling during this time.

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

The chart illustrates December temperature patterns in Winona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winona, December typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (80°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec465159637379828177675350
Data source: Temperature data for Winona 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 Winona

In Winona in December, the precipitation amount is 125 mm (4.9 in) over the course of 11 days.

December Precipitation Trends in Winona

The chart displays monthly precipitation patterns in Winona, 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 Winona, December typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec119183162151114127951209312680125
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Winona

In Winona in December, humidity is 88%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and encouraging travelers to seek cozy indoor activities instead.

December Average Humidity in Winona

This chart illustrates the average monthly humidity levels in Winona, 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 Winona is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Winona

In Winona 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 Winona for better planning.

Maximum UV Index Levels in Winona for December

The chart shows the monthly maximum UV Index (UVI) for Winona 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 Winona typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Winona 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 Winona Compares to Other Months

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

This table compares monthly weather conditions in Winona, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)119 mm (4.7 inches)85%moderate
February Weather10°C (51°F)183 mm (7.2 inches)84%high
March Weather15°C (59°F)162 mm (6.4 inches)82%very high
April Weather17°C (63°F)151 mm (5.9 inches)82%very high
May Weather23°C (73°F)114 mm (4.5 inches)82%extreme
June Weather26°C (79°F)127 mm (5.0 inches)79%extreme
July Weather28°C (82°F)94 mm (3.7 inches)82%extreme
August Weather27°C (81°F)120 mm (4.7 inches)77%extreme
September Weather25°C (78°F)93 mm (3.7 inches)74%very high
October Weather19°C (67°F)126 mm (5.0 inches)73%very high
November Weather12°C (53°F)80 mm (3.1 inches)85%high
December Weather10°C (50°F)125 mm (4.9 inches)88%moderate

Compare Winona's Climate with Cities Worldwide