Last updated: June 24, 2025
In May, the average temperature in Marcellus, United States hovers around 16°C (60°F), making it a pleasant time to visit. However, be prepared for a range of temperatures, as it can dip to a chilly -2°C (28°F) or rise to a warm 34°C (93°F). You can expect about 157 mm (6.2 in) of precipitation spread over 16 days, complemented by a high average humidity of 81%. Plan accordingly for a comfortable experience!
In May in Marcellus, the average temperature is 16°C (60°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as -2°C (28°F). This varied climate offers a unique opportunity for travelers to experience both warm and cool weather, making it ideal for a range of outdoor activities.
In Marcellus in May, the total precipitation amount is 157 mm (6.2 in) spread over 16 days.
In Marcellus in May, humidity is 81%. With an average temperature of 16°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you as you travel, making you acutely aware of the sweat on your skin and creating an atmosphere that might dampen your spirits but also invites you to seek out refreshing beverages and shady spots.
In Marcellus 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 Marcellus.
UV Risk Categories
Weather in Marcellus varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Marcellus, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 74 mm (2.9 inches) | 85% | moderate |
| February Weather | -2°C (28°F) | 78 mm (3.1 inches) | 85% | moderate |
| March Weather | 3°C (38°F) | 90 mm (3.6 inches) | 86% | high |
| April Weather | 8°C (47°F) | 105 mm (4.1 inches) | 87% | very high |
| May Weather | 16°C (60°F) | 157 mm (6.2 inches) | 81% | very high |
| June Weather | 22°C (71°F) | 129 mm (5.1 inches) | 82% | very high |
| July Weather | 24°C (75°F) | 112 mm (4.4 inches) | 81% | very high |
| August Weather | 22°C (72°F) | 85 mm (3.4 inches) | 79% | very high |
| September Weather | 19°C (67°F) | 85 mm (3.3 inches) | 78% | high |
| October Weather | 12°C (54°F) | 141 mm (5.5 inches) | 81% | high |
| November Weather | 4°C (40°F) | 74 mm (2.9 inches) | 89% | moderate |
| December Weather | 1°C (33°F) | 64 mm (2.5 inches) | 86% | moderate |