Last updated: June 24, 2025
In January, the average temperature in Salem, United States hovers around 0°C (32°F), making it a chilly time of year. Expect temperatures to range from a brisk -20°C (-4°F) to a mild 20°C (69°F). With an average precipitation of 70 mm (2.8 in) spread over 8 days, be prepared for some wet weather. Additionally, the average humidity sits at a notable 84%, adding to the overall cool and damp atmosphere.
In January in Salem, the average temperature is 0°C (32°F). Maximum temperatures can reach 20°C (69°F), while minimums can drop as low as -20°C (-4°F). Prepare for a range of weather conditions, so pack accordingly to fully enjoy your travels!
In Salem in January, the total precipitation amount is 70 mm (2.8 in), spread over the course of 8 days.
In Salem in January, humidity is 84%. With an average temperature of 0°C (32°F), this humidity feels like a cold, damp chill that seeps into your clothes, making traveling uncomfortable and necessitating extra layers to stay warm despite the moisture-laden air.
In Salem in January, 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 Salem, you can check the information here.
UV Risk Categories
Weather in Salem varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Salem, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 0°C (32°F) | 70 mm (2.8 inches) | 84% | moderate |
February Weather | 1°C (34°F) | 90 mm (3.5 inches) | 84% | moderate |
March Weather | 4°C (39°F) | 95 mm (3.7 inches) | 82% | high |
April Weather | 9°C (49°F) | 128 mm (5.1 inches) | 79% | very high |
May Weather | 15°C (59°F) | 111 mm (4.4 inches) | 75% | very high |
June Weather | 20°C (69°F) | 95 mm (3.8 inches) | 78% | very high |
July Weather | 24°C (75°F) | 158 mm (6.2 inches) | 76% | very high |
August Weather | 23°C (74°F) | 107 mm (4.2 inches) | 76% | very high |
September Weather | 19°C (67°F) | 96 mm (3.8 inches) | 75% | very high |
October Weather | 14°C (57°F) | 131 mm (5.2 inches) | 75% | high |
November Weather | 7°C (44°F) | 96 mm (3.8 inches) | 80% | moderate |
December Weather | 2°C (36°F) | 133 mm (5.2 inches) | 80% | low |