Last updated: March 2, 2024
The weather in Rochester, United States, during January is characterized by an average temperature of -1°C (30°F). Highs can soar to 15°C (60°F), while lows may dip to -17°C (1°F). Typically, the humidity level in Rochester throughout January hovers around 88%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Rochester averages 95 mm (3.7 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 9 hours 37 minutes of daylight, with the sun shining for approximately 3 hours 18 minutes each day. Additionally, there is a 20% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Rochester reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 0 | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||