Last updated: June 24, 2025
In December, the average temperature in Pecos, United States hovers around 0°C (32°F), with a minimum dipping to -18°C (0°F) and a maximum reaching 17°C (63°F). Expect 20 mm (0.8 in) of precipitation over about 4 days, accompanied by an average humidity of 79%. Prepare for a chilly yet dynamic month!
In December in Pecos, the average temperature is 0°C (32°F). The maximum can reach 17°C (63°F), and the minimum can be as low as -18°C (0°F). Travelers should be prepared for a wide temperature range and pack accordingly for both cold and mild weather.
In Pecos in December, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.
In Pecos in December humidity is 79%. With an average temperature of 0°C (32°F), this humidity feels like a heavy blanket wrapping around you, making every step outside feel like a challenge while also leaving a chill that cuts through your bones—it's a reminder to dress warmly yet prepare for the dampness that clings to your clothes, making travel less comfortable and more of an adventure.
In Pecos in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Pecos for better planning.
UV Risk Categories
Weather in Pecos varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Pecos, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 28 mm (1.1 inches) | 78% | moderate |
| February Weather | 0°C (32°F) | 26 mm (1.0 inches) | 79% | very high |
| March Weather | 5°C (41°F) | 32 mm (1.3 inches) | 66% | very high |
| April Weather | 9°C (49°F) | 34 mm (1.3 inches) | 60% | extreme |
| May Weather | 15°C (58°F) | 31 mm (1.2 inches) | 57% | extreme |
| June Weather | 20°C (68°F) | 32 mm (1.3 inches) | 55% | extreme |
| July Weather | 21°C (70°F) | 86 mm (3.4 inches) | 56% | extreme |
| August Weather | 20°C (68°F) | 66 mm (2.6 inches) | 65% | extreme |
| September Weather | 17°C (63°F) | 35 mm (1.4 inches) | 72% | extreme |
| October Weather | 10°C (51°F) | 50 mm (2.0 inches) | 78% | very high |
| November Weather | 5°C (41°F) | 28 mm (1.1 inches) | 81% | high |
| December Weather | 0°C (32°F) | 20 mm (0.8 inches) | 79% | moderate |