Last updated: June 24, 2025
In December, the average temperature in Startup, United States hovers around 2°C (36°F), with extremes reaching a frigid -13°C (9°F) at the low end and a mild 12°C (54°F) at the high. Expect 300 mm (11.8 in) of precipitation over the course of 20 days, contributing to the region's average humidity of 88%.
In December in Startup, the average temperature is 2°C (36°F). Maximum temperatures can reach 12°C (54°F), while minimums can drop as low as -13°C (9°F). Be prepared for chilly weather and pack accordingly if you're planning to visit!
In Startup in December, the precipitation amount is 300 mm (11.8 in) over a span of 20 days.
In Startup in December, humidity is 88%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making traveling uncomfortable and energy-draining as every step through the chill seems heavier in the thick air.
In Startup 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 Startup, you can visit Hourly UV Index in Startup.
UV Risk Categories
Weather in Startup varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Startup, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 2°C (36°F) | 261 mm (10.3 inches) | 86% | low |
February Weather | 1°C (34°F) | 303 mm (11.9 inches) | 86% | moderate |
March Weather | 4°C (39°F) | 202 mm (7.9 inches) | 87% | high |
April Weather | 7°C (45°F) | 182 mm (7.2 inches) | 84% | high |
May Weather | 11°C (52°F) | 112 mm (4.4 inches) | 81% | very high |
June Weather | 14°C (57°F) | 102 mm (4.0 inches) | 82% | very high |
July Weather | 16°C (62°F) | 40 mm (1.6 inches) | 79% | very high |
August Weather | 17°C (62°F) | 30 mm (1.2 inches) | 63% | very high |
September Weather | 14°C (57°F) | 136 mm (5.4 inches) | 62% | high |
October Weather | 8°C (46°F) | 261 mm (10.3 inches) | 83% | moderate |
November Weather | 5°C (41°F) | 301 mm (11.8 inches) | 89% | moderate |
December Weather | 2°C (36°F) | 300 mm (11.8 inches) | 88% | low |