Last updated: June 24, 2025
The average temperature in West Branch, United States during May hovers around 13°C (56°F). Expect a range from a chilly -3°C (26°F) to a sweltering 34°C (94°F). With an average precipitation of 110 mm (4.3 in) over 12 days and humidity levels reaching 79%, be prepared for a mix of cool and warm, and don't forget your umbrella!
In May in West Branch, the average temperature is 13°C (56°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as -3°C (26°F). Be sure to pack for a wide range of temperatures if you're planning to travel during this month!
In West Branch in May, the precipitation amount is 110 mm (4.3 in) over a span of 12 days.
In West Branch in May, humidity is 79%. With an average temperature of 13°C (56°F), this humidity feels like a damp, cool blanket wrapping around you, making traveling slightly uncomfortable and requiring you to dress in layers to stay comfortable while exploring.
In West Branch 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 West Branch.
UV Risk Categories
Weather in West Branch varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in West Branch, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 50 mm (2.0 inches) | 92% | low |
| February Weather | -6°C (22°F) | 51 mm (2.0 inches) | 91% | moderate |
| March Weather | 0°C (32°F) | 54 mm (2.1 inches) | 87% | moderate |
| April Weather | 6°C (43°F) | 93 mm (3.6 inches) | 85% | very high |
| May Weather | 13°C (56°F) | 110 mm (4.3 inches) | 79% | very high |
| June Weather | 19°C (66°F) | 108 mm (4.2 inches) | 75% | very high |
| July Weather | 22°C (72°F) | 91 mm (3.6 inches) | 75% | very high |
| August Weather | 20°C (69°F) | 91 mm (3.6 inches) | 75% | very high |
| September Weather | 16°C (62°F) | 75 mm (3.0 inches) | 79% | high |
| October Weather | 10°C (50°F) | 122 mm (4.8 inches) | 85% | moderate |
| November Weather | 2°C (36°F) | 58 mm (2.3 inches) | 88% | moderate |
| December Weather | -2°C (28°F) | 60 mm (2.4 inches) | 89% | low |