Last updated: March 2, 2024
The weather in McLean, United States, during July is characterized by an average temperature of 27°C (81°F). Highs can soar to 37°C (98°F), while lows may dip to 17°C (63°F). Typically, the humidity level in McLean throughout July hovers around 74%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In July, McLean averages 141 mm (5.5 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 14 hours 33 minutes of daylight, with the sun shining for approximately 11 hours 29 minutes each day. Additionally, there is a 49% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In July, the UV Index in McLean reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 | 2 | 3 | 5 | 8 | 9 | 10 | 9 | 8 | 6 | 4 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | High | Moderate | Low | |||||||
| Time to burn | 45 min | 30 min | 15 min | 25 min | 30 min | 45 min | |||||||