Last updated: June 24, 2025
In Missouri Valley, United States, the average temperature in May hovers around 17°C (63°F), with variations ranging from a brisk 2°C (36°F) to a sweltering 36°C (97°F). During this month, you can expect about 154 mm (6.1 in) of precipitation spread across 15 days. The air carries a notable average humidity of 78%, making it feel quite humid at times.
In May in Missouri Valley, the average temperature is 17°C (63°F). The maximum can reach 36°C (97°F), while the minimum can be as low as 2°C (36°F). This range makes it a great time for travelers to enjoy a variety of outdoor activities, from comfortable sightseeing to cooler evening strolls.
In Missouri Valley in May, the precipitation amount is 154 mm (6.1 in) over the course of 15 days.
In Missouri Valley in May, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.
In Missouri Valley 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 Missouri Valley.
UV Risk Categories
Weather in Missouri Valley varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Missouri Valley, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 31 mm (1.2 inches) | 76% | moderate |
| February Weather | -4°C (25°F) | 32 mm (1.3 inches) | 80% | moderate |
| March Weather | 5°C (41°F) | 90 mm (3.5 inches) | 73% | high |
| April Weather | 10°C (50°F) | 60 mm (2.4 inches) | 74% | very high |
| May Weather | 17°C (63°F) | 154 mm (6.1 inches) | 78% | very high |
| June Weather | 24°C (76°F) | 126 mm (5.0 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 66 mm (2.6 inches) | 83% | very high |
| August Weather | 23°C (74°F) | 106 mm (4.2 inches) | 80% | very high |
| September Weather | 21°C (69°F) | 81 mm (3.2 inches) | 75% | very high |
| October Weather | 11°C (53°F) | 111 mm (4.4 inches) | 75% | high |
| November Weather | 4°C (40°F) | 31 mm (1.2 inches) | 82% | moderate |
| December Weather | -1°C (31°F) | 39 mm (1.5 inches) | 83% | low |