nomadseason

December Weather in Winona, United States

Last updated: June 24, 2025

In December, the average temperature in Winona, United States is a mild 11°C (53°F). However, be prepared for a range of temperatures—from a chilly -3°C (27°F) at night to a delightful 28°C (83°F) during the day. Expect some rain as well, with an average precipitation of 120 mm (4.7 in) spread over 8 days. With an average humidity level of 87%, it’s a month that perfectly captures the essence of the season!

December Temperature in Winona

In December in Winona, the average temperature is 11°C (53°F), with a maximum that can reach 28°C (83°F) and a minimum that can drop as low as -3°C (27°F). Travelers should be prepared for a wide range of weather conditions 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 11°C (53°F), with highs reaching up to 28°C (83°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec485060657481848479685752
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 total precipitation amount reaches 120 mm (4.7 in) over the course of 8 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 120 mm (4.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec11015012914516010986769810469120
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 87%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that clings to your skin, making it uncomfortable for traveling as it combines the cool air with a sense of heaviness, leaving you yearning for warmth and dryness.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
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.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
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 Weather9°C (48°F)110 mm (4.3 inches)80%moderate
February Weather10°C (50°F)150 mm (5.9 inches)79%high
March Weather16°C (61°F)129 mm (5.1 inches)78%very high
April Weather18°C (65°F)145 mm (5.7 inches)78%very high
May Weather23°C (74°F)160 mm (6.3 inches)81%extreme
June Weather27°C (81°F)109 mm (4.3 inches)78%extreme
July Weather29°C (84°F)86 mm (3.4 inches)73%extreme
August Weather29°C (84°F)75 mm (3.0 inches)66%extreme
September Weather26°C (79°F)98 mm (3.9 inches)65%very high
October Weather20°C (69°F)104 mm (4.1 inches)72%very high
November Weather14°C (57°F)69 mm (2.7 inches)82%high
December Weather11°C (53°F)120 mm (4.7 inches)87%moderate

Compare Winona's Climate with Cities Worldwide