Last updated: March 2, 2024
The weather in Spearfish, United States, during July is characterized by an average temperature of 22°C (72°F). Highs can soar to 35°C (96°F), while lows may dip to 10°C (51°F). Typically, the humidity level in Spearfish throughout July hovers around 85%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In July, Spearfish averages 88 mm (3.4 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 15 hours 6 minutes of daylight, with the sun shining for approximately 12 hours 19 minutes each day. Additionally, there is a 66% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In July, the UV Index in Spearfish 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 | 4 | 6 | 8 | 10 | 11 | 10 | 8 | 6 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||