Last updated: June 24, 2025
In December, the average temperature in Henrietta, United States hovers around 9°C (49°F). However, be prepared for a range of conditions, as temperatures can dip to a chilly -7°C (19°F) or soar up to a warm 31°C (88°F). You'll likely encounter some rain, with an average precipitation of 47 mm (1.8 in) over about 4 days. The air tends to be quite humid, with an average humidity level of 85%.
In December in Henrietta, the average temperature is 9°C (49°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as -7°C (19°F). Be prepared for a wide range of weather conditions when traveling in this month.
In Henrietta in December, the total precipitation amount is 47 mm (1.8 in) recorded over a span of 4 days.
In Henrietta in December humidity is 85%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making every step outside a challenge as the moisture in the air weighs heavily and lingers, transforming even simple outings into a quest for comfort.
In Henrietta 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 Henrietta for better planning.
UV Risk Categories
Weather in Henrietta varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Henrietta, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (44°F) | 42 mm (1.7 inches) | 77% | moderate |
| February Weather | 8°C (46°F) | 55 mm (2.2 inches) | 76% | high |
| March Weather | 15°C (59°F) | 72 mm (2.8 inches) | 74% | very high |
| April Weather | 18°C (65°F) | 69 mm (2.7 inches) | 75% | very high |
| May Weather | 23°C (74°F) | 118 mm (4.6 inches) | 80% | extreme |
| June Weather | 28°C (83°F) | 51 mm (2.0 inches) | 80% | extreme |
| July Weather | 31°C (87°F) | 22 mm (0.9 inches) | 75% | extreme |
| August Weather | 30°C (86°F) | 57 mm (2.3 inches) | 67% | extreme |
| September Weather | 26°C (79°F) | 95 mm (3.8 inches) | 64% | very high |
| October Weather | 19°C (66°F) | 87 mm (3.4 inches) | 70% | very high |
| November Weather | 12°C (55°F) | 42 mm (1.7 inches) | 82% | moderate |
| December Weather | 9°C (49°F) | 47 mm (1.8 inches) | 85% | moderate |