Last updated: March 2, 2024
The weather in Mattawa, United States, during January is characterized by an average temperature of -1°C (31°F). Highs can soar to 10°C (51°F), while lows may dip to -11°C (13°F). Typically, the humidity level in Mattawa throughout January hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Mattawa averages 45 mm (1.8 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 9 hours 1 minutes of daylight, with the sun shining for approximately 2 hours 53 minutes each day. Additionally, there is a 28% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In January, the UV Index in Mattawa reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 45 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 | 2 | 2 | 2 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | ||||||||||||
| Time to burn | 45 min | ||||||||||||