Last updated: June 24, 2025
In May, the average temperature in Long Grove, United States hovers around 17°C (62°F), presenting a pleasant climate. However, temperatures can range from a chilly 0°C (32°F) to a balmy 35°C (94°F). Expect around 145 mm (5.7 in) of precipitation over the course of approximately 15 days, contributing to an average humidity of 78%.
In May in Long Grove, the average temperature is 17°C (62°F). The maximum can reach 35°C (94°F), and the minimum can be as low as 0°C (32°F). It's essential to pack for a range of weather conditions to ensure a comfortable travel experience.
In Long Grove in May, the precipitation amount is 145 mm (5.7 in) spread over the course of 15 days.
In Long Grove 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 Long Grove 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 Long Grove.
UV Risk Categories
Weather in Long Grove varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Long Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 54 mm (2.1 inches) | 81% | moderate |
| February Weather | -4°C (25°F) | 60 mm (2.4 inches) | 81% | moderate |
| March Weather | 4°C (40°F) | 86 mm (3.4 inches) | 81% | high |
| April Weather | 9°C (49°F) | 102 mm (4.0 inches) | 82% | very high |
| May Weather | 17°C (62°F) | 145 mm (5.7 inches) | 78% | very high |
| June Weather | 23°C (73°F) | 126 mm (5.0 inches) | 81% | extreme |
| July Weather | 25°C (77°F) | 80 mm (3.1 inches) | 79% | very high |
| August Weather | 23°C (73°F) | 83 mm (3.3 inches) | 77% | very high |
| September Weather | 20°C (68°F) | 119 mm (4.7 inches) | 78% | very high |
| October Weather | 12°C (54°F) | 114 mm (4.5 inches) | 78% | high |
| November Weather | 4°C (39°F) | 48 mm (1.9 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 48 mm (1.9 inches) | 84% | low |