Last updated: June 24, 2025
In Dubuque, United States, the average temperature in May hovers around 16°C (61°F). Expect a minimum drop to 0°C (32°F) and a pleasant maximum rise to 34°C (94°F). During this month, you'll encounter about 150 mm (5.9 in) of precipitation over 14 days, creating a humid atmosphere with an average humidity of 75%. Prepare for a mixed bag of weather!
In May in Dubuque, the average temperature is 16°C (61°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as 0°C (32°F). Be prepared for a wide range of weather conditions when traveling to Dubuque during this time!
In Dubuque in May, the total precipitation amount is 150 mm (5.9 in), occurring over a span of 14 days.
In Dubuque in May humidity is 75%. With an average temperature of 16°C (61°F), this humidity feels like a warm, muggy embrace, making traveling somewhat uncomfortable as you may find yourself constantly adjusting your clothing and seeking shade to escape the sticky air.
In Dubuque 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 Dubuque.
UV Risk Categories
Weather in Dubuque varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Dubuque, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 48 mm (1.9 inches) | 84% | moderate |
| February Weather | -5°C (23°F) | 61 mm (2.4 inches) | 85% | moderate |
| March Weather | 3°C (37°F) | 64 mm (2.5 inches) | 84% | high |
| April Weather | 8°C (47°F) | 86 mm (3.4 inches) | 83% | very high |
| May Weather | 16°C (61°F) | 150 mm (5.9 inches) | 75% | very high |
| June Weather | 22°C (72°F) | 136 mm (5.4 inches) | 79% | very high |
| July Weather | 24°C (76°F) | 92 mm (3.6 inches) | 75% | very high |
| August Weather | 22°C (72°F) | 89 mm (3.5 inches) | 69% | very high |
| September Weather | 19°C (66°F) | 118 mm (4.7 inches) | 74% | very high |
| October Weather | 11°C (52°F) | 119 mm (4.7 inches) | 79% | moderate |
| November Weather | 3°C (37°F) | 46 mm (1.8 inches) | 88% | moderate |
| December Weather | -1°C (30°F) | 43 mm (1.7 inches) | 82% | low |