Last updated: June 24, 2025
In Green Valley, United States, the average temperature for May hovers around 13°C (55°F). However, be prepared for a range, as temperatures can dip to a chilly -3°C (27°F) and soar to a warm 32°C (90°F). Expect about 93 mm (3.7 in) of precipitation spread over 13 days, along with an average humidity level of 74%, creating a unique atmosphere perfect for adventure or relaxation.
In May in Green Valley, the average temperature is 13°C (55°F). The maximum can reach 32°C (90°F), and the minimum can be as low as -3°C (27°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly for both warm days and chilly evenings.
In Green Valley in May, the total precipitation amount is 93 mm (3.7 in), which falls over the course of 13 days.
In Green Valley in May, humidity is 74%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and demanding frequent breaks in shaded areas.
In Green 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 Green Valley.
UV Risk Categories
Weather in Green Valley varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Green Valley, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 11 mm (0.5 inches) | 73% | moderate |
| February Weather | -5°C (23°F) | 21 mm (0.8 inches) | 78% | moderate |
| March Weather | 2°C (37°F) | 38 mm (1.5 inches) | 64% | high |
| April Weather | 6°C (44°F) | 62 mm (2.4 inches) | 66% | very high |
| May Weather | 13°C (55°F) | 93 mm (3.7 inches) | 74% | very high |
| June Weather | 21°C (69°F) | 56 mm (2.2 inches) | 84% | extreme |
| July Weather | 24°C (75°F) | 69 mm (2.7 inches) | 85% | extreme |
| August Weather | 22°C (72°F) | 34 mm (1.3 inches) | 85% | very high |
| September Weather | 18°C (64°F) | 33 mm (1.3 inches) | 76% | very high |
| October Weather | 8°C (47°F) | 48 mm (1.9 inches) | 71% | moderate |
| November Weather | 3°C (38°F) | 13 mm (0.5 inches) | 73% | moderate |
| December Weather | -1°C (30°F) | 26 mm (1.0 inches) | 75% | low |