Last updated: June 24, 2025
In December, the average temperature in Saint Paul, United States hovers around 5°C (42°F). Expect a chilly minimum of -13°C (9°F), while the warmest days can reach up to 24°C (75°F). With an average precipitation of 35 mm (1.4 in) spread over 4 days, and humidity levels at a notable 85%, it's wise to prepare for diverse weather conditions!
In December in Saint Paul, the average temperature is 5°C (42°F), with maximums reaching up to 24°C (75°F) and minimums dropping as low as -13°C (9°F). Travelers should be prepared for a wide range of temperatures, so it's advisable to pack layers for comfort during your visit.
In Saint Paul in December, the precipitation amount is 35 mm (1.4 in) over a span of 4 days.
In Saint Paul in December, humidity is 85%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and requiring extra layers to stay warm while exploring.
In Saint Paul in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Saint Paul, you can check the information here.
UV Risk Categories
Weather in Saint Paul varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint Paul, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 2°C (36°F) | 62 mm (2.4 inches) | 77% | moderate |
February Weather | 3°C (37°F) | 58 mm (2.3 inches) | 76% | moderate |
March Weather | 10°C (50°F) | 113 mm (4.4 inches) | 71% | high |
April Weather | 14°C (57°F) | 114 mm (4.5 inches) | 73% | very high |
May Weather | 20°C (68°F) | 230 mm (9.1 inches) | 83% | very high |
June Weather | 26°C (78°F) | 108 mm (4.2 inches) | 83% | extreme |
July Weather | 27°C (81°F) | 104 mm (4.1 inches) | 81% | extreme |
August Weather | 26°C (79°F) | 126 mm (5.0 inches) | 73% | very high |
September Weather | 23°C (74°F) | 82 mm (3.2 inches) | 67% | very high |
October Weather | 15°C (60°F) | 133 mm (5.2 inches) | 72% | high |
November Weather | 8°C (47°F) | 43 mm (1.7 inches) | 82% | moderate |
December Weather | 5°C (42°F) | 35 mm (1.4 inches) | 85% | moderate |