Last updated: June 24, 2025
In May, the average temperature in Plainwell, United States hovers around 15°C (60°F). Be prepared for a range of temperatures, as they can dip to a chilly -3°C (27°F) and soar up to a sweltering 34°C (94°F). Rain is a common occurrence, with about 154 mm (6.1 in) of precipitation falling over 15 days. Don't forget to stay hydrated, as the average humidity sits at a sticky 82%!
In May in Plainwell, the average temperature is 15°C (60°F), with maximums reaching up to 34°C (94°F) and minimums dipping as low as -3°C (27°F).
Travelers should be prepared for a wide range of temperatures, making layering essential for comfort during their stay.
In Plainwell in May, the precipitation amount is 154 mm (6.1 in) over the course of 15 days.
In Plainwell in May humidity is 82%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and draining, which can hinder your travel experience.
In Plainwell 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 Plainwell.
UV Risk Categories
Weather in Plainwell varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Plainwell, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 72 mm (2.8 inches) | 87% | moderate |
| February Weather | -2°C (28°F) | 74 mm (2.9 inches) | 87% | moderate |
| March Weather | 3°C (37°F) | 76 mm (3.0 inches) | 86% | high |
| April Weather | 8°C (47°F) | 92 mm (3.6 inches) | 87% | very high |
| May Weather | 15°C (60°F) | 154 mm (6.1 inches) | 82% | very high |
| June Weather | 21°C (70°F) | 126 mm (5.0 inches) | 81% | very high |
| July Weather | 24°C (75°F) | 96 mm (3.8 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 77 mm (3.0 inches) | 79% | very high |
| September Weather | 19°C (66°F) | 96 mm (3.8 inches) | 79% | high |
| October Weather | 12°C (54°F) | 139 mm (5.5 inches) | 82% | moderate |
| November Weather | 4°C (39°F) | 68 mm (2.7 inches) | 87% | moderate |
| December Weather | 0°C (33°F) | 67 mm (2.7 inches) | 86% | low |