Last updated: June 24, 2025
In December, the average temperature in New River, United States hovers around 10°C (51°F). While the minimum can dip to -2°C (30°F), temperatures can soar as high as 25°C (78°F). Expect some moisture, with an average precipitation of 29 mm (1.2 in) spread over 4 days. Relative humidity is quite high at 82%, making for a chilly yet potentially damp month.
In December in New River, the average temperature is 10°C (51°F), with maximums potentially reaching 25°C (78°F) and minimums dipping as low as -2°C (30°F). This variation makes it advisable for travelers to prepare for both warm and chilly conditions.
In New River in December, the total precipitation amount is 29 mm (1.2 in) spread over the course of 4 days.
In New River in December humidity is 82%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor adventures less appealing and prompting travelers to seek cozy indoor activities or warm drinks to counter the brisk air.
In New River 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 New River for better planning.
UV Risk Categories
Weather in New River varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in New River, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 10°C (50°F) | 40 mm (1.6 inches) | 76% | moderate |
| February Weather | 11°C (51°F) | 49 mm (1.9 inches) | 79% | high |
| March Weather | 14°C (58°F) | 47 mm (1.8 inches) | 67% | very high |
| April Weather | 20°C (68°F) | 3 mm (0.1 inches) | 55% | extreme |
| May Weather | 23°C (74°F) | 5 mm (0.2 inches) | 40% | extreme |
| June Weather | 29°C (85°F) | 4 mm (0.2 inches) | 33% | extreme |
| July Weather | 31°C (88°F) | 75 mm (3.0 inches) | 34% | extreme |
| August Weather | 30°C (87°F) | 38 mm (1.5 inches) | 48% | extreme |
| September Weather | 27°C (82°F) | 24 mm (1.0 inches) | 64% | very high |
| October Weather | 21°C (70°F) | 26 mm (1.0 inches) | 67% | very high |
| November Weather | 16°C (61°F) | 32 mm (1.3 inches) | 77% | moderate |
| December Weather | 10°C (51°F) | 29 mm (1.2 inches) | 82% | moderate |