Last updated: June 24, 2025
In January, the average temperature in Johnson, United States is a chilly -8°C (18°F). Expect extremes, with minimums dropping to -33°C (-27°F) and maximums reaching up to 13°C (56°F). Precipitation is quite frequent, with about 96 mm (3.8 in) spread over 14 days, contributing to an average humidity of 93%. Stay warm and prepare for the wet conditions!
In January in Johnson, the average temperature is -8°C (18°F). Maximum temperatures can reach 13°C (56°F), while minimums can plunge as low as -33°C (-27°F). Travelers should be prepared for extreme cold and significant temperature fluctuations.
In Johnson in January, the total precipitation amount is 96 mm (3.8 in) over the course of 14 days.
In Johnson in January humidity is 93%. With an average temperature of -8°C (18°F), this humidity feels like a bone-chilling dampness that seeps into your clothes, making even the briefest moments outside feel uncomfortable and heavy, as if you're trudging through a misty, cold cloud that wraps around you.
In Johnson in January, 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 Johnson, you can visit Hourly UV Index in Johnson.
UV Risk Categories
Weather in Johnson varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Johnson, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -8°C (18°F) | 96 mm (3.8 inches) | 93% | low |
February Weather | -6°C (21°F) | 92 mm (3.6 inches) | 92% | moderate |
March Weather | -2°C (28°F) | 92 mm (3.6 inches) | 86% | moderate |
April Weather | 5°C (42°F) | 124 mm (4.9 inches) | 85% | high |
May Weather | 13°C (55°F) | 109 mm (4.3 inches) | 80% | very high |
June Weather | 17°C (64°F) | 116 mm (4.6 inches) | 74% | very high |
July Weather | 20°C (69°F) | 141 mm (5.6 inches) | 76% | very high |
August Weather | 19°C (67°F) | 115 mm (4.5 inches) | 75% | very high |
September Weather | 15°C (59°F) | 87 mm (3.4 inches) | 78% | high |
October Weather | 9°C (48°F) | 165 mm (6.5 inches) | 86% | moderate |
November Weather | 0°C (33°F) | 131 mm (5.2 inches) | 88% | moderate |
December Weather | -5°C (23°F) | 92 mm (3.6 inches) | 89% | low |