Last updated: June 24, 2025
In May, the average temperature in Mercer, United States hovers around 12°C (54°F). Be prepared for a range of temperatures, from a chilly -4°C (24°F) to a warm 32°C (89°F). Expect about 100 mm (3.9 in) of precipitation over 10 days, contributing to an average humidity level of 76%.
In May in Mercer, the average temperature is 12°C (54°F). Maximum temperatures can reach 32°C (89°F), while the minimum can dip as low as -4°C (24°F). Be prepared for a wide range of weather conditions when traveling during this month.
In Mercer in May, the precipitation amount is 100 mm (3.9 in) over a span of 10 days.
In Mercer in May, humidity is 76%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration while exploring.
In Mercer in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Mercer.
UV Risk Categories
Weather in Mercer varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Mercer, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -10°C (14°F) | 36 mm (1.4 inches) | 93% | low |
February Weather | -10°C (14°F) | 51 mm (2.0 inches) | 93% | moderate |
March Weather | -3°C (27°F) | 53 mm (2.1 inches) | 89% | moderate |
April Weather | 3°C (37°F) | 92 mm (3.6 inches) | 85% | high |
May Weather | 12°C (54°F) | 100 mm (3.9 inches) | 76% | very high |
June Weather | 18°C (65°F) | 121 mm (4.8 inches) | 71% | very high |
July Weather | 20°C (69°F) | 110 mm (4.3 inches) | 70% | very high |
August Weather | 18°C (65°F) | 126 mm (5.0 inches) | 71% | very high |
September Weather | 14°C (58°F) | 98 mm (3.9 inches) | 73% | high |
October Weather | 7°C (44°F) | 118 mm (4.7 inches) | 81% | moderate |
November Weather | -2°C (29°F) | 58 mm (2.3 inches) | 87% | moderate |
December Weather | -7°C (20°F) | 70 mm (2.8 inches) | 91% | low |