Last updated: June 24, 2025
In December, the average temperature in East Missoula, United States hovers around -2°C (29°F), with a potential low of -24°C (-10°F) and a maximum of 16°C (61°F). Expect 63 mm (2.5 in) of precipitation over 13 days, accompanied by a high average humidity of 95%. Prepare for chilly and damp conditions!
In December in East Missoula, the average temperature is -2°C (29°F), with maximums reaching 16°C (61°F) and minimums dipping as low as -24°C (-10°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both chilly days and milder moments.
In East Missoula in December, the precipitation amount is 63 mm (2.5 in) spread over 13 days.
In East Missoula in December, humidity is 95%. With an average temperature of -2°C (29°F), this humidity feels like a cold, damp chill that seeps into your bones, making outdoor travel uncomfortable and necessitating extra layers to stay warm and dry.
In East Missoula in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in East Missoula, you can visit Hourly UV Index in East Missoula.
UV Risk Categories
Weather in East Missoula varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in East Missoula, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 39 mm (1.5 inches) | 93% | low |
| February Weather | -5°C (23°F) | 86 mm (3.4 inches) | 92% | moderate |
| March Weather | 1°C (35°F) | 49 mm (1.9 inches) | 89% | high |
| April Weather | 5°C (42°F) | 68 mm (2.7 inches) | 85% | very high |
| May Weather | 11°C (52°F) | 65 mm (2.6 inches) | 80% | very high |
| June Weather | 16°C (61°F) | 64 mm (2.5 inches) | 78% | very high |
| July Weather | 22°C (71°F) | 13 mm (0.5 inches) | 77% | very high |
| August Weather | 20°C (69°F) | 18 mm (0.7 inches) | 66% | very high |
| September Weather | 15°C (58°F) | 27 mm (1.1 inches) | 67% | very high |
| October Weather | 6°C (43°F) | 60 mm (2.4 inches) | 77% | moderate |
| November Weather | 1°C (35°F) | 55 mm (2.2 inches) | 89% | moderate |
| December Weather | -2°C (29°F) | 63 mm (2.5 inches) | 95% | low |