Last updated: June 24, 2025
In May, the average temperature in River Heights, United States is a mild 10°C (50°F). Visitors should prepare for a range of weather, as temperatures can dip to a chilly -8°C (18°F) or reach a warm 28°C (82°F). With an average precipitation of 67 mm (2.7 in) spread over 13 days, the atmosphere boasts a comfortable humidity level of 62%.
In May in River Heights, the average temperature is 10°C (50°F). Maximums can reach 28°C (82°F), while minimums can drop as low as -8°C (18°F). Pack accordingly to enjoy all the seasonal experiences that River Heights has to offer!
In River Heights in May, the precipitation amount is 67 mm (2.7 in) over the course of 13 days.
In River Heights in May humidity is 62%. With an average temperature of 10°C (50°F), this humidity feels like a chill that seeps into your bones, making travel slightly uncomfortable unless you're well-prepared with warm clothing.
In River Heights in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in River Heights.
UV Risk Categories
Weather in River Heights varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in River Heights, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 67 mm (2.7 inches) | 91% | moderate |
| February Weather | -4°C (26°F) | 86 mm (3.4 inches) | 92% | moderate |
| March Weather | 1°C (35°F) | 64 mm (2.5 inches) | 84% | very high |
| April Weather | 5°C (40°F) | 78 mm (3.1 inches) | 74% | very high |
| May Weather | 10°C (50°F) | 67 mm (2.7 inches) | 62% | extreme |
| June Weather | 17°C (63°F) | 28 mm (1.1 inches) | 56% | extreme |
| July Weather | 22°C (71°F) | 22 mm (0.9 inches) | 44% | extreme |
| August Weather | 20°C (69°F) | 27 mm (1.1 inches) | 37% | extreme |
| September Weather | 15°C (59°F) | 35 mm (1.4 inches) | 46% | very high |
| October Weather | 6°C (43°F) | 46 mm (1.8 inches) | 67% | high |
| November Weather | 1°C (33°F) | 56 mm (2.2 inches) | 84% | moderate |
| December Weather | -5°C (23°F) | 60 mm (2.3 inches) | 88% | moderate |