Last updated: June 24, 2025
In Grand Island, United States, the average temperature in December hovers around 1°C (34°F), with a minimum dipping to -18°C (0°F) and a peak of 17°C (62°F). During this time, expect 91 mm (3.6 in) of precipitation spread over 15 days, contributing to an average humidity of 87%. Stay prepared for a chilly and damp backdrop!
In December in Grand Island, the average temperature is 1°C (34°F). Maximums can reach 17°C (62°F) and minimums can be as low as -18°C (0°F). Be prepared for a wide temperature range when visiting, so dress in layers to ensure comfort during your travels.
In Grand Island in December, the total precipitation amount is 91 mm (3.6 in) over a span of 15 days.
In Grand Island in December humidity is 87%. With an average temperature of 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making every step outside feel heavy and damp, and leaving you longing for warmth and comfort while traveling.
In Grand Island 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 Grand Island, you can visit Hourly UV Index in Grand Island.
UV Risk Categories
Weather in Grand Island varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Grand Island, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 77 mm (3.0 inches) | 91% | low |
| February Weather | -2°C (29°F) | 82 mm (3.2 inches) | 91% | moderate |
| March Weather | 2°C (35°F) | 72 mm (2.8 inches) | 88% | moderate |
| April Weather | 7°C (44°F) | 116 mm (4.6 inches) | 88% | very high |
| May Weather | 13°C (56°F) | 101 mm (4.0 inches) | 82% | very high |
| June Weather | 19°C (67°F) | 81 mm (3.2 inches) | 79% | very high |
| July Weather | 23°C (73°F) | 125 mm (4.9 inches) | 77% | very high |
| August Weather | 22°C (72°F) | 83 mm (3.3 inches) | 72% | very high |
| September Weather | 19°C (66°F) | 75 mm (3.0 inches) | 76% | high |
| October Weather | 13°C (55°F) | 128 mm (5.0 inches) | 83% | moderate |
| November Weather | 5°C (42°F) | 87 mm (3.4 inches) | 88% | moderate |
| December Weather | 1°C (34°F) | 91 mm (3.6 inches) | 87% | low |