Last updated: June 24, 2025
In December, the average temperature in Farmingdale, United States hovers around 4°C (40°F). Expect a diverse range, with lows of -11°C (13°F) and highs of 19°C (66°F). Be prepared for some wet days, as precipitation averages around 105 mm (4.1 in) over 9 days. With an average humidity of 80%, it's wise to dress in layers for both warmth and comfort.
In December in Farmingdale, the average temperature is 4°C (40°F). The maximum can reach 19°C (66°F), and the minimum can be as low as -11°C (13°F). Travelers should be prepared for a wide range of temperatures, so dressing in layers is advisable.
In Farmingdale in December, the total precipitation amount reaches 105 mm (4.1 in) over the course of 9 days.
In Farmingdale in December, humidity is 80%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring careful planning for warmth and moisture management.
In Farmingdale 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 Farmingdale, you can visit Hourly UV Index in Farmingdale.
UV Risk Categories
Weather in Farmingdale varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Farmingdale, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 67 mm (2.6 inches) | 84% | moderate |
| February Weather | 4°C (39°F) | 110 mm (4.3 inches) | 82% | moderate |
| March Weather | 6°C (44°F) | 104 mm (4.1 inches) | 81% | high |
| April Weather | 12°C (53°F) | 111 mm (4.4 inches) | 78% | very high |
| May Weather | 17°C (63°F) | 123 mm (4.9 inches) | 69% | very high |
| June Weather | 22°C (73°F) | 93 mm (3.7 inches) | 69% | very high |
| July Weather | 26°C (79°F) | 140 mm (5.5 inches) | 62% | very high |
| August Weather | 25°C (77°F) | 133 mm (5.2 inches) | 65% | very high |
| September Weather | 21°C (71°F) | 94 mm (3.7 inches) | 68% | very high |
| October Weather | 16°C (61°F) | 139 mm (5.5 inches) | 74% | high |
| November Weather | 8°C (48°F) | 88 mm (3.5 inches) | 82% | moderate |
| December Weather | 4°C (40°F) | 105 mm (4.1 inches) | 80% | low |