Last updated: June 24, 2025
In December, the average temperature in Killingly Center, United States hovers around 1°C (35°F), with potential fluctuations from a chilly -16°C (3°F) to a mild 17°C (63°F). Expect 124 mm (4.9 in) of precipitation over about 10 days, and remember to prepare for a moist atmosphere with an average humidity of 80%.
In December in Killingly Center, the average temperature is 1°C (35°F). Maximums can reach 17°C (63°F), and minimums can be as low as -16°C (3°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable.
In Killingly Center in December, the precipitation amount is 124 mm (4.9 in) spread over a duration of 10 days.
In Killingly Center in December, humidity is 80%. With an average temperature of 1°C (35°F), this humidity feels like a cold, damp embrace that makes traveling quite uncomfortable, as it seeps into your clothes and makes the air feel heavier, making it hard to stay warm and dry while exploring.
In Killingly Center 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 Killingly Center, you can visit Hourly UV Index in Killingly Center.
UV Risk Categories
Weather in Killingly Center varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Killingly Center, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (31°F) | 71 mm (2.8 inches) | 84% | moderate |
| February Weather | 1°C (34°F) | 89 mm (3.5 inches) | 84% | moderate |
| March Weather | 4°C (39°F) | 96 mm (3.8 inches) | 82% | high |
| April Weather | 9°C (49°F) | 130 mm (5.1 inches) | 79% | very high |
| May Weather | 15°C (59°F) | 107 mm (4.2 inches) | 75% | very high |
| June Weather | 20°C (69°F) | 99 mm (3.9 inches) | 78% | very high |
| July Weather | 23°C (74°F) | 145 mm (5.7 inches) | 76% | very high |
| August Weather | 23°C (73°F) | 112 mm (4.4 inches) | 76% | very high |
| September Weather | 19°C (66°F) | 93 mm (3.7 inches) | 75% | very high |
| October Weather | 13°C (56°F) | 133 mm (5.2 inches) | 75% | high |
| November Weather | 6°C (43°F) | 98 mm (3.9 inches) | 80% | moderate |
| December Weather | 1°C (35°F) | 124 mm (4.9 inches) | 80% | low |