Last updated: March 2, 2024
The weather in Boulder, United States, during June is characterized by an average temperature of 14°C (57°F). Highs can soar to 26°C (79°F), while lows may dip to 0°C (32°F). Typically, the humidity level in Boulder throughout June hovers around 78%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In June, Boulder averages 112 mm (4.4 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 15 hours 42 minutes of daylight, with the sun shining for approximately 11 hours 42 minutes each day. Additionally, there is a 69% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In June, the UV Index in Boulder reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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 | 1 | 2 | 3 | 5 | 8 | 10 | 11 | 10 | 9 | 7 | 5 | 3 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||