Last updated: March 2, 2024
The weather in Norristown, United States, during August is characterized by an average temperature of 25°C (77°F). Highs can soar to 34°C (94°F), while lows may dip to 16°C (60°F). Typically, the humidity level in Norristown throughout August hovers around 72%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In August, Norristown averages 134 mm (5.3 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 13 hours 39 minutes of daylight, with the sun shining for approximately 9 hours 57 minutes each day. Additionally, there is a 33% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In August, the UV Index in Norristown reaches a maximum of 9, 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 | 2 | 3 | 5 | 7 | 9 | 9 | 9 | 7 | 5 | 3 | 1 | 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 | ||||||