Last updated: June 24, 2025
In May, the average temperature in Spirit Lake, United States hovers around 13°C (55°F). Expect a minimum chill of 0°C (32°F) and the possibility of a warm day reaching up to 31°C (88°F). With 61 mm (2.4 in) of rain spread over 9 days, it's no wonder the average humidity stands at a muggy 77%. Be prepared for both warm sunshine and drizzle!
In May in Spirit Lake, the average temperature is 13°C (55°F). Maximums can reach 31°C (88°F), and minimums can drop as low as 0°C (32°F). This wide temperature range means that travelers should pack layers to accommodate both warm days and cool nights.
In Spirit Lake in May, the precipitation amount is 61 mm (2.4 in) spread over 9 days.
In Spirit Lake in May humidity is 77%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill in the air, making travel somewhat uncomfortable as the moisture clings to your skin and adds a heavier weight to your clothing, which can sap your energy as you explore.
In Spirit Lake 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 Spirit Lake.
UV Risk Categories
Weather in Spirit Lake varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Spirit Lake, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 104 mm (4.1 inches) | 89% | low |
| February Weather | -2°C (29°F) | 98 mm (3.9 inches) | 89% | moderate |
| March Weather | 3°C (37°F) | 85 mm (3.3 inches) | 87% | moderate |
| April Weather | 7°C (45°F) | 81 mm (3.2 inches) | 84% | high |
| May Weather | 13°C (55°F) | 61 mm (2.4 inches) | 77% | very high |
| June Weather | 17°C (63°F) | 34 mm (1.3 inches) | 78% | very high |
| July Weather | 22°C (72°F) | 7 mm (0.3 inches) | 77% | very high |
| August Weather | 22°C (72°F) | 19 mm (0.8 inches) | 64% | very high |
| September Weather | 16°C (61°F) | 50 mm (2.0 inches) | 62% | high |
| October Weather | 8°C (47°F) | 85 mm (3.4 inches) | 79% | moderate |
| November Weather | 3°C (38°F) | 113 mm (4.4 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 114 mm (4.5 inches) | 90% | low |