Last updated: June 24, 2025
In December, the average temperature in East Machias, United States hovers around -1°C (30°F). Expect chilly extremes, with minimums dipping as low as -21°C (-5°F) and highs reaching 15°C (59°F). The area experiences 138 mm (5.5 in) of precipitation over roughly 11 days, accompanied by a notable average humidity of 84%. Be prepared for a cool and damp month!
In December in East Machias, the average temperature is -1°C (30°F), with a maximum that can reach 15°C (59°F) and a minimum that can drop as low as -21°C (-5°F). Be prepared for a wide range of temperatures if you're planning to travel during this time!
In East Machias in December, the total precipitation amount recorded is 138 mm (5.5 in) over the course of 11 days.
In East Machias in December, humidity is 84%. With an average temperature of -1°C (30°F), this humidity feels like a sharp chill that seeps into your bones, making travel uncomfortable as the wetness in the air intensifies the cold, leaving you yearning for warmth and shelter.
In East Machias 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 Machias, you can visit Hourly UV Index in East Machias.
UV Risk Categories
Weather in East Machias varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in East Machias, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (26°F) | 107 mm (4.2 inches) | 88% | low |
| February Weather | -3°C (27°F) | 98 mm (3.8 inches) | 88% | moderate |
| March Weather | 0°C (32°F) | 78 mm (3.1 inches) | 85% | moderate |
| April Weather | 6°C (42°F) | 135 mm (5.3 inches) | 81% | high |
| May Weather | 10°C (51°F) | 109 mm (4.3 inches) | 76% | very high |
| June Weather | 15°C (60°F) | 94 mm (3.7 inches) | 74% | very high |
| July Weather | 19°C (66°F) | 82 mm (3.2 inches) | 74% | very high |
| August Weather | 19°C (66°F) | 79 mm (3.1 inches) | 74% | very high |
| September Weather | 16°C (61°F) | 93 mm (3.7 inches) | 77% | high |
| October Weather | 11°C (52°F) | 114 mm (4.5 inches) | 82% | moderate |
| November Weather | 4°C (40°F) | 140 mm (5.5 inches) | 85% | moderate |
| December Weather | -1°C (30°F) | 138 mm (5.5 inches) | 84% | low |