Last updated: June 24, 2025
In May, the average temperature in Salem Heights, United States hovers around 19°C (66°F). Expect a wide range, with minimums dipping to 0°C (33°F) and maximums reaching up to 32°C (91°F). Be prepared for 132 mm (5.2 in) of precipitation over approximately 15 days, accompanied by an average humidity level of 81%.
In May in Salem Heights, the average temperature is 19°C (66°F). The maximum can reach 32°C (91°F), while the minimum can drop as low as 0°C (33°F). Be sure to pack for a range of temperatures to make the most of your trip!
In Salem Heights in May, the precipitation amount is 132 mm (5.2 in), occurring over a span of 15 days.
In Salem Heights in May, humidity is 81%. With an average temperature of 19°C (66°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel both muggy and slightly stifling, often leading to a need for frequent breaks in the shade.
In Salem Heights 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 Salem Heights.
UV Risk Categories
Weather in Salem Heights varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Salem Heights, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 81 mm (3.2 inches) | 88% | moderate |
| February Weather | 3°C (38°F) | 112 mm (4.4 inches) | 88% | moderate |
| March Weather | 8°C (46°F) | 136 mm (5.3 inches) | 87% | high |
| April Weather | 12°C (55°F) | 129 mm (5.1 inches) | 85% | very high |
| May Weather | 19°C (66°F) | 132 mm (5.2 inches) | 81% | very high |
| June Weather | 23°C (74°F) | 148 mm (5.8 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 116 mm (4.6 inches) | 81% | very high |
| August Weather | 24°C (75°F) | 93 mm (3.7 inches) | 73% | very high |
| September Weather | 21°C (71°F) | 91 mm (3.6 inches) | 73% | very high |
| October Weather | 15°C (60°F) | 98 mm (3.9 inches) | 78% | high |
| November Weather | 7°C (44°F) | 96 mm (3.8 inches) | 89% | moderate |
| December Weather | 4°C (39°F) | 114 mm (4.5 inches) | 87% | moderate |