Last updated: June 24, 2025
In January, the average temperature in Winona, United States hovers around 9°C (48°F). Expect a range from a chilly -13°C (10°F) to a surprisingly warm 25°C (78°F). During this time, you can anticipate approximately 110 mm (4.3 in) of precipitation over 8 days, coupled with an average humidity of 80%. Stay prepared for a mix of weather conditions!
In January in Winona, the average temperature is 9°C (48°F). Maximum temperatures can reach 25°C (78°F), while minimums can drop as low as -13°C (10°F). Travelers should be prepared for a wide range of temperatures when visiting during this time.
In Winona in January, the precipitation amount is 110 mm (4.3 in) over a period of 8 days.
In Winona in January humidity is 80%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel quite uncomfortable.
In Winona in January, 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.
UV Risk Categories
Weather in Winona varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Winona, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 9°C (48°F) | 110 mm (4.3 inches) | 80% | moderate |
February Weather | 10°C (50°F) | 150 mm (5.9 inches) | 79% | high |
March Weather | 16°C (61°F) | 129 mm (5.1 inches) | 78% | very high |
April Weather | 18°C (65°F) | 145 mm (5.7 inches) | 78% | very high |
May Weather | 23°C (74°F) | 160 mm (6.3 inches) | 81% | extreme |
June Weather | 27°C (81°F) | 109 mm (4.3 inches) | 78% | extreme |
July Weather | 29°C (84°F) | 86 mm (3.4 inches) | 73% | extreme |
August Weather | 29°C (84°F) | 75 mm (3.0 inches) | 66% | extreme |
September Weather | 26°C (79°F) | 98 mm (3.9 inches) | 65% | very high |
October Weather | 20°C (69°F) | 104 mm (4.1 inches) | 72% | very high |
November Weather | 14°C (57°F) | 69 mm (2.7 inches) | 82% | high |
December Weather | 11°C (53°F) | 120 mm (4.7 inches) | 87% | moderate |