Last updated: June 24, 2025
In Sedro-Woolley, United States, the average temperature in May is a pleasant 12°C (54°F). Expect a minimum of 3°C (37°F) and a maximum of 26°C (78°F). During this month, you can anticipate approximately 82 mm (3.2 in) of precipitation over about 12 days, along with an average humidity of 82%. Enjoy the varying weather!
In May in Sedro-Woolley, the average temperature is 12°C (54°F). Maximum temperatures can reach 26°C (78°F), while minimums can drop to as low as 3°C (37°F). It's advisable to pack layers to stay comfortable during your travels.
In Sedro-Woolley in May, the precipitation amount is 82 mm (3.2 in) occurring over a span of 12 days.
In Sedro-Woolley in May humidity is 82%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and sweat-inducing, which can be quite uncomfortable for traveling.
In Sedro-Woolley in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Sedro-Woolley.
UV Risk Categories
Weather in Sedro-Woolley varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sedro-Woolley, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 236 mm (9.3 inches) | 87% | low |
| February Weather | 2°C (36°F) | 244 mm (9.6 inches) | 86% | moderate |
| March Weather | 5°C (42°F) | 191 mm (7.5 inches) | 88% | moderate |
| April Weather | 8°C (47°F) | 146 mm (5.8 inches) | 86% | high |
| May Weather | 12°C (54°F) | 82 mm (3.2 inches) | 82% | very high |
| June Weather | 15°C (59°F) | 75 mm (3.0 inches) | 82% | very high |
| July Weather | 17°C (63°F) | 31 mm (1.2 inches) | 85% | very high |
| August Weather | 18°C (64°F) | 26 mm (1.0 inches) | 77% | very high |
| September Weather | 15°C (59°F) | 146 mm (5.8 inches) | 76% | high |
| October Weather | 9°C (49°F) | 229 mm (9.0 inches) | 88% | moderate |
| November Weather | 6°C (43°F) | 312 mm (12.3 inches) | 88% | low |
| December Weather | 3°C (38°F) | 271 mm (10.7 inches) | 89% | low |