Last updated: June 24, 2025
In West Branch, United States, the average temperature in May typically hovers around 17°C (62°F). Expect minimums plunging to -1°C (31°F) and occasional maximums soaring up to 35°C (95°F). During this month, the region sees about 135 mm (5.3 in) of precipitation spread over 15 days, contributing to an average humidity level of 78%. Whether you're braving the chill or basking in warmth, be prepared for a mix of weather conditions!
In May in West Branch, the average temperature is 17°C (62°F), with maximums reaching 35°C (95°F) and minimums dipping as low as -1°C (31°F). This variability makes West Branch a destination where travelers should be prepared for both warm and chilly weather.
In West Branch in May, the precipitation amount is 135 mm (5.3 in), occurring over a span of 15 days.
In West Branch in May, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.
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) | 49 mm (1.9 inches) | 81% | moderate |
| February Weather | -4°C (24°F) | 58 mm (2.3 inches) | 81% | moderate |
| March Weather | 4°C (39°F) | 80 mm (3.1 inches) | 81% | high |
| April Weather | 9°C (49°F) | 87 mm (3.4 inches) | 82% | very high |
| May Weather | 17°C (62°F) | 135 mm (5.3 inches) | 78% | very high |
| June Weather | 23°C (73°F) | 127 mm (5.0 inches) | 81% | extreme |
| July Weather | 25°C (76°F) | 77 mm (3.0 inches) | 79% | very high |
| August Weather | 23°C (73°F) | 87 mm (3.4 inches) | 77% | very high |
| September Weather | 20°C (68°F) | 132 mm (5.2 inches) | 78% | very high |
| October Weather | 12°C (53°F) | 131 mm (5.2 inches) | 78% | high |
| November Weather | 3°C (38°F) | 50 mm (2.0 inches) | 87% | moderate |
| December Weather | -1°C (31°F) | 47 mm (1.8 inches) | 84% | moderate |