Last updated: June 24, 2025
In May, the average temperature in Allendale, United States hovers around 13°C (56°F), offering a mild climate for visitors. Expect temperature fluctuations where the minimum can drop to -1°C (30°F), while the maximum can reach a warm 30°C (87°F). With an average precipitation amount of 134 mm (5.3 in) spread over 14 days, rain may be in the forecast, contributing to an average humidity of 82%. Be sure to pack accordingly and enjoy your time in this diverse environment!
In May in Allendale, the average temperature is 13°C (56°F), with maximums reaching 30°C (87°F) and minimums dipping as low as -1°C (30°F). It's a great time for travelers to enjoy a mix of warm days and cool nights, making it ideal for outdoor activities and exploration.
In Allendale in May, the total precipitation amount is 134 mm (5.3 in) over the course of 14 days.
In Allendale in May, humidity is 82%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel much cooler than it is and creating a heavy atmosphere that can be exhausting for travelers.
In Allendale 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 Allendale.
UV Risk Categories
Weather in Allendale varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Allendale, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (28°F) | 69 mm (2.7 inches) | 87% | low |
| February Weather | -2°C (28°F) | 74 mm (2.9 inches) | 87% | moderate |
| March Weather | 2°C (36°F) | 70 mm (2.8 inches) | 86% | moderate |
| April Weather | 7°C (44°F) | 98 mm (3.8 inches) | 87% | very high |
| May Weather | 13°C (56°F) | 134 mm (5.3 inches) | 82% | very high |
| June Weather | 19°C (67°F) | 120 mm (4.7 inches) | 81% | very high |
| July Weather | 23°C (73°F) | 62 mm (2.4 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 69 mm (2.7 inches) | 79% | very high |
| September Weather | 19°C (66°F) | 109 mm (4.3 inches) | 79% | high |
| October Weather | 12°C (54°F) | 140 mm (5.5 inches) | 82% | moderate |
| November Weather | 4°C (40°F) | 75 mm (3.0 inches) | 87% | moderate |
| December Weather | 1°C (34°F) | 74 mm (2.9 inches) | 86% | low |