Last updated: June 24, 2025
In May, the average temperature in Storm Lake, United States is a comfortable 16°C (60°F). However, temperatures can range from a chilly 1°C (35°F) to a sweltering 35°C (95°F). Expect about 140 mm (5.5 in) of precipitation over 14 days, contributing to an average humidity of 74%.
In May in Storm Lake, the average temperature is 16°C (60°F). The maximum can reach 35°C (95°F), and the minimum can be as low as 1°C (35°F). Therefore, when traveling during this time, it is advisable to pack layers to accommodate both warm days and cooler evenings.
In Storm Lake in May, the precipitation amount is 140 mm (5.5 in) over the course of 14 days.
In Storm Lake in May humidity is 74%. With an average temperature of 16°C (60°F), this humidity feels like a damp blanket enveloping you, making traveling a bit uncomfortable as you navigate the sticky air and potentially limiting your energy for exploring the sights.
In Storm Lake 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 Storm Lake.
UV Risk Categories
Weather in Storm Lake varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Storm Lake, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 26 mm (1.0 inches) | 80% | moderate |
| February Weather | -6°C (21°F) | 40 mm (1.6 inches) | 84% | moderate |
| March Weather | 3°C (37°F) | 71 mm (2.8 inches) | 75% | moderate |
| April Weather | 8°C (46°F) | 88 mm (3.5 inches) | 79% | very high |
| May Weather | 16°C (60°F) | 140 mm (5.5 inches) | 74% | very high |
| June Weather | 23°C (73°F) | 127 mm (5.0 inches) | 81% | extreme |
| July Weather | 24°C (76°F) | 66 mm (2.6 inches) | 82% | very high |
| August Weather | 22°C (72°F) | 108 mm (4.2 inches) | 80% | very high |
| September Weather | 19°C (67°F) | 105 mm (4.1 inches) | 75% | very high |
| October Weather | 10°C (50°F) | 96 mm (3.8 inches) | 77% | moderate |
| November Weather | 2°C (36°F) | 34 mm (1.3 inches) | 85% | moderate |
| December Weather | -2°C (28°F) | 41 mm (1.6 inches) | 83% | moderate |