Last updated: June 24, 2025
In Cisco, United States, the average temperature in December hovers around 10°C (51°F), where you can expect a wide range of conditions: temperatures can dip as low as -5°C (23°F) or soar up to 31°C (89°F). Precipitation is moderate, with an average of 34 mm (1.3 in) spread over 3 days, while the average humidity is quite high at 85%, creating a distinct atmosphere. Whether you're planning an outdoor adventure or cozying up indoors, be prepared for varied weather sure to keep things interesting!
In December in Cisco, the average temperature is 10°C (51°F). Maximum temperatures can reach 31°C (89°F), while minimums can drop as low as -5°C (23°F). Travelers should prepare for a wide range of temperatures and pack accordingly.
In Cisco in December, the precipitation amount is 34 mm (1.3 in) over the course of 3 days.
In Cisco in December, humidity is 85%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill enveloping you, making travel quite uncomfortable as your clothes cling to your skin and the air feels heavy, often leaving you longing for a dry, warmer environment.
In Cisco 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 Cisco for better planning.
UV Risk Categories
Weather in Cisco varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cisco, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 8°C (46°F) | 32 mm (1.3 inches) | 77% | moderate |
| February Weather | 9°C (49°F) | 40 mm (1.6 inches) | 76% | high |
| March Weather | 16°C (60°F) | 68 mm (2.7 inches) | 74% | very high |
| April Weather | 19°C (66°F) | 72 mm (2.8 inches) | 75% | very high |
| May Weather | 24°C (75°F) | 91 mm (3.6 inches) | 80% | extreme |
| June Weather | 28°C (83°F) | 57 mm (2.3 inches) | 80% | extreme |
| July Weather | 30°C (86°F) | 29 mm (1.1 inches) | 75% | extreme |
| August Weather | 30°C (86°F) | 41 mm (1.6 inches) | 67% | extreme |
| September Weather | 26°C (79°F) | 79 mm (3.1 inches) | 64% | very high |
| October Weather | 19°C (67°F) | 74 mm (2.9 inches) | 70% | very high |
| November Weather | 13°C (56°F) | 28 mm (1.1 inches) | 82% | high |
| December Weather | 10°C (51°F) | 34 mm (1.3 inches) | 85% | moderate |