Last updated: March 2, 2024
The weather in Houston, United States, during January is characterized by an average temperature of -12°C (11°F). Highs can soar to 4°C (39°F), while lows may dip to -28°C (-18°F). Typically, the humidity level in Houston throughout January hovers around 94%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Houston averages 38 mm (1.5 inches) of rainfall, typically over the course of 7 rainy days. The month enjoys an average of 6 hours 23 minutes of daylight, with the sun shining for approximately 1 hours 46 minutes each day. Additionally, there is a 31% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Houston reaches a maximum of 1, 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 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | ||||||||||||
| Time to burn | 45 min | ||||||||||||