Last updated: June 24, 2025
In Iron Mountain, United States, the weather in October presents an average temperature of 8°C (46°F). Expect a range of -6°C (21°F) as the minimum and a pleasant 27°C (81°F) as the maximum. With an average precipitation of 99 mm (3.9 in) spread over 11 days, and humidity levels at 84%, it's a month where you might want to keep an umbrella handy, while still enjoying the mild temperatures!
In October in Iron Mountain, the average temperature is 8°C (46°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as -6°C (21°F). Travelers should be prepared for a wide range of temperatures when visiting during this month.
In Iron Mountain, in October, the precipitation amount is 99 mm (3.9 in) over the course of 11 days.
In Iron Mountain in October humidity is 84%. With an average temperature of 8°C (46°F), this humidity feels like a chilly mist wrapping around you, making outdoor exploration cumbersome and layering your clothing a necessity for comfort.
In Iron Mountain in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Iron Mountain.
UV Risk Categories
Weather in Iron Mountain varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Iron Mountain, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (17°F) | 33 mm (1.3 inches) | 89% | low |
| February Weather | -9°C (17°F) | 49 mm (1.9 inches) | 90% | moderate |
| March Weather | -2°C (28°F) | 48 mm (1.9 inches) | 87% | moderate |
| April Weather | 4°C (39°F) | 90 mm (3.5 inches) | 84% | high |
| May Weather | 12°C (55°F) | 85 mm (3.3 inches) | 77% | very high |
| June Weather | 18°C (65°F) | 108 mm (4.3 inches) | 75% | very high |
| July Weather | 21°C (70°F) | 103 mm (4.1 inches) | 74% | very high |
| August Weather | 19°C (67°F) | 118 mm (4.6 inches) | 73% | very high |
| September Weather | 15°C (60°F) | 90 mm (3.5 inches) | 78% | high |
| October Weather | 8°C (46°F) | 99 mm (3.9 inches) | 84% | moderate |
| November Weather | 0°C (32°F) | 51 mm (2.0 inches) | 89% | moderate |
| December Weather | -5°C (23°F) | 55 mm (2.2 inches) | 87% | low |