Last updated: June 24, 2025
In May, the average temperature in Slippery Rock, United States hovers around 16°C (61°F). Expect temperature swings, with lows dipping to -2°C (29°F) and highs soaring up to 31°C (88°F). Rainfall is notable, with precipitation totaling 150 mm (5.9 in) over approximately 17 days of the month. Humidity levels remain high, averaging around 81%, adding a touch of moisture to the air.
In May in Slippery Rock, the average temperature is 16°C (61°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as -2°C (29°F). Pack a variety of clothing to accommodate both warm days and chilly nights during your travels.
In Slippery Rock in May, the precipitation amount is 150 mm (5.9 in) over a span of 17 days.
In Slippery Rock in May, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.
In Slippery Rock in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Slippery Rock.
UV Risk Categories
Weather in Slippery Rock varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Slippery Rock, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 102 mm (4.0 inches) | 88% | moderate |
| February Weather | 0°C (33°F) | 117 mm (4.6 inches) | 88% | moderate |
| March Weather | 4°C (39°F) | 106 mm (4.2 inches) | 87% | high |
| April Weather | 10°C (49°F) | 141 mm (5.6 inches) | 87% | very high |
| May Weather | 16°C (61°F) | 150 mm (5.9 inches) | 81% | very high |
| June Weather | 20°C (69°F) | 139 mm (5.5 inches) | 83% | very high |
| July Weather | 23°C (74°F) | 145 mm (5.7 inches) | 82% | very high |
| August Weather | 22°C (71°F) | 101 mm (4.0 inches) | 76% | very high |
| September Weather | 19°C (66°F) | 119 mm (4.7 inches) | 77% | very high |
| October Weather | 13°C (56°F) | 129 mm (5.1 inches) | 82% | high |
| November Weather | 5°C (41°F) | 104 mm (4.1 inches) | 89% | moderate |
| December Weather | 1°C (35°F) | 104 mm (4.1 inches) | 86% | low |