Last updated: June 24, 2025
In Oroville, United States, the average temperature in May hovers around 13°C (55°F), with potential extremes ranging from a chilly -1°C (30°F) to a warm 28°C (83°F). Expect about 42 mm (1.6 in) of precipitation spread over 6 days, contributing to an average humidity of 82%. Whether you're bracing for cool breezes or warm sunshine, be prepared for a variety of weather this month!
In May in Oroville, the average temperature is 13°C (55°F). The maximum can reach 28°C (83°F), and the minimum can be as low as -1°C (30°F). Be prepared for a mix of mild and chilly days, making it an ideal time for layering your clothing while exploring the area.
In Oroville in May, the total precipitation amount is 42 mm (1.6 in) over a span of 6 days.
In Oroville in May, humidity is 82%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.
In Oroville 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 Oroville.
UV Risk Categories
Weather in Oroville varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Oroville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 87 mm (3.4 inches) | 90% | low |
| February Weather | -3°C (27°F) | 73 mm (2.9 inches) | 91% | moderate |
| March Weather | 3°C (37°F) | 81 mm (3.2 inches) | 89% | moderate |
| April Weather | 7°C (45°F) | 65 mm (2.5 inches) | 85% | high |
| May Weather | 13°C (55°F) | 42 mm (1.6 inches) | 82% | very high |
| June Weather | 17°C (63°F) | 31 mm (1.2 inches) | 81% | very high |
| July Weather | 21°C (70°F) | 8 mm (0.3 inches) | 84% | very high |
| August Weather | 20°C (69°F) | 12 mm (0.5 inches) | 75% | very high |
| September Weather | 15°C (59°F) | 40 mm (1.6 inches) | 74% | high |
| October Weather | 7°C (44°F) | 68 mm (2.7 inches) | 85% | moderate |
| November Weather | 2°C (35°F) | 92 mm (3.6 inches) | 88% | moderate |
| December Weather | -2°C (29°F) | 98 mm (3.9 inches) | 93% | low |