Last updated: March 2, 2024
The weather in Joint Base Lewis McChord, United States, during August is characterized by an average temperature of 18°C (66°F). Highs can soar to 32°C (90°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Joint Base Lewis McChord throughout August hovers around 73%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In August, Joint Base Lewis McChord averages 13 mm (0.5 inches) of rainfall, typically over the course of 3 rainy days. The month enjoys an average of 14 hours 6 minutes of daylight, with the sun shining for approximately 10 hours 57 minutes each day. Additionally, there is a 51% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In August, the UV Index in Joint Base Lewis McChord reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 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 | 1 | 3 | 4 | 6 | 8 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||