Last updated: June 24, 2025
In Saint Joseph, United States, the average temperature in May hovers around 15°C (59°F), with a notable range where it can dip to a chilly 1°C (33°F) or soar to a warm 35°C (94°F). Expect 136 mm (5.4 in) of precipitation spread over approximately 14 days, contributing to an average humidity level of 75%. Get ready for a month that balances mild warmth with the occasional rain!
In May in Saint Joseph, the average temperature is 15°C (59°F). The maximum can reach 35°C (94°F), while the minimum can be as low as 1°C (33°F). Pack accordingly to enjoy a pleasant travel experience, as temperatures can vary widely during this time.
In Saint Joseph in May, the precipitation amount is 136 mm (5.4 in) over a span of 14 days.
In Saint Joseph in May, humidity is 75%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making it feel more oppressive than refreshing, which can be a challenge for travelers seeking comfort while exploring the area.
In Saint Joseph in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Saint Joseph.
UV Risk Categories
Weather in Saint Joseph varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Saint Joseph, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 37 mm (1.5 inches) | 84% | low |
| February Weather | -6°C (21°F) | 52 mm (2.0 inches) | 85% | moderate |
| March Weather | 2°C (35°F) | 58 mm (2.3 inches) | 84% | moderate |
| April Weather | 7°C (45°F) | 87 mm (3.4 inches) | 83% | very high |
| May Weather | 15°C (59°F) | 136 mm (5.4 inches) | 75% | very high |
| June Weather | 21°C (71°F) | 122 mm (4.8 inches) | 79% | very high |
| July Weather | 23°C (74°F) | 106 mm (4.2 inches) | 75% | very high |
| August Weather | 21°C (71°F) | 111 mm (4.4 inches) | 69% | very high |
| September Weather | 18°C (65°F) | 108 mm (4.2 inches) | 74% | very high |
| October Weather | 10°C (50°F) | 120 mm (4.7 inches) | 79% | moderate |
| November Weather | 2°C (35°F) | 51 mm (2.0 inches) | 88% | moderate |
| December Weather | -3°C (27°F) | 43 mm (1.7 inches) | 82% | low |