Last updated: June 24, 2025
In May, the average temperature in Thornton, United States hovers around 12°C (53°F). Expect a range where the minimum can dip to -2°C (28°F), while the maximum may soar to 31°C (88°F). With an average humidity of 72%, be prepared for some moisture in the air. During this month, anticipate 98 mm (3.9 in) of precipitation spread over 14 days, ensuring you have your umbrella handy!
In May in Thornton, the average temperature is 12°C (53°F). Maximum temperatures can reach 31°C (88°F), while minimums can dip as low as -2°C (28°F). When traveling, it's wise to prepare for a wide range of temperatures, ensuring you're equipped for both warm days and chilly nights.
In Thornton in May, the precipitation amount reaches 98 mm (3.9 in) over a span of 14 days.
In Thornton in May humidity is 72%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that clings to your clothes, making outdoor exploration slightly uncomfortable but invigorating as you navigate the refreshing air.
In Thornton 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 Thornton.
UV Risk Categories
Weather in Thornton varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Thornton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 85 mm (3.4 inches) | 86% | moderate |
| February Weather | -6°C (21°F) | 86 mm (3.4 inches) | 84% | moderate |
| March Weather | -2°C (28°F) | 75 mm (2.9 inches) | 82% | high |
| April Weather | 5°C (41°F) | 129 mm (5.1 inches) | 80% | very high |
| May Weather | 12°C (53°F) | 98 mm (3.9 inches) | 72% | very high |
| June Weather | 17°C (63°F) | 105 mm (4.1 inches) | 72% | very high |
| July Weather | 20°C (68°F) | 135 mm (5.3 inches) | 67% | very high |
| August Weather | 19°C (66°F) | 99 mm (3.9 inches) | 66% | very high |
| September Weather | 15°C (59°F) | 71 mm (2.8 inches) | 71% | high |
| October Weather | 8°C (47°F) | 143 mm (5.6 inches) | 78% | moderate |
| November Weather | 0°C (33°F) | 119 mm (4.7 inches) | 84% | moderate |
| December Weather | -5°C (23°F) | 113 mm (4.5 inches) | 81% | low |