Last updated: June 24, 2025
In May, the average temperature in Iowa Falls, United States hovers around 16°C (61°F). However, be prepared for variability, as it can drop to a chilly 0°C (32°F) or soar up to a sweltering 35°C (95°F). During this month, expect 158 mm (6.2 in) of precipitation spread over 15 days, with an average humidity of 74%. Plan accordingly to make the most of your time in this dynamic climate!
In May in Iowa Falls, the average temperature is 16°C (61°F). Maximums can reach 35°C (95°F), and minimums can be as low as 0°C (32°F). This wide temperature range makes Iowa Falls an ideal destination for travelers looking to experience a variety of weather conditions.
In Iowa Falls in May, the precipitation amount is 158 mm (6.2 in) over the course of 15 days.
In Iowa Falls in May humidity is 74%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making traveling quite uncomfortable as the air feels thick and muggy, potentially leading to fatigue and a longing for a cool breeze.
In Iowa Falls 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 Iowa Falls.
UV Risk Categories
Weather in Iowa Falls varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Iowa Falls, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 37 mm (1.4 inches) | 82% | moderate |
| February Weather | -7°C (20°F) | 47 mm (1.8 inches) | 84% | moderate |
| March Weather | 3°C (37°F) | 71 mm (2.8 inches) | 80% | high |
| April Weather | 8°C (47°F) | 80 mm (3.1 inches) | 81% | very high |
| May Weather | 16°C (61°F) | 158 mm (6.2 inches) | 74% | very high |
| June Weather | 23°C (73°F) | 117 mm (4.6 inches) | 80% | extreme |
| July Weather | 24°C (75°F) | 99 mm (3.9 inches) | 80% | very high |
| August Weather | 22°C (72°F) | 91 mm (3.6 inches) | 77% | very high |
| September Weather | 19°C (67°F) | 119 mm (4.7 inches) | 75% | very high |
| October Weather | 10°C (51°F) | 125 mm (4.9 inches) | 80% | high |
| November Weather | 2°C (36°F) | 45 mm (1.8 inches) | 87% | moderate |
| December Weather | -2°C (29°F) | 35 mm (1.4 inches) | 83% | moderate |