Last updated: June 24, 2025
In Lemon Grove, United States, the average temperature in December hovers around 19°C (66°F), presenting a comfortable climate for outdoor activities. Expect temperature fluctuations, with a minimum of 2°C (37°F) and a maximum reaching 31°C (88°F). While enjoying the pleasant weather, be prepared for some light rain, with an average precipitation of 54 mm (2.1 in) spread across 7 days. Additionally, humidity levels can be quite high at 84%, enhancing the lush atmosphere of this charming locale.
In December in Lemon Grove, the average temperature is a pleasant 19°C (66°F). The maximum can reach a warm 31°C (88°F), while the minimum can dip to a chilly 2°C (37°F). It's a great time to travel, as you're likely to experience a mix of warm days and cool evenings, perfect for outdoor adventures and exploring the local sights.
In Lemon Grove in December, the precipitation amount is 54 mm (2.1 in) over a duration of 7 days.
In Lemon Grove in December, humidity is 84%. With an average temperature of 19°C (66°F), this humidity feels like a warm, sticky embrace that can make traveling uncomfortable and exhausting, as the air clings to your skin, and every step taken feels heavier in the sultry atmosphere.
In Lemon Grove in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Lemon Grove.
UV Risk Categories
Weather in Lemon Grove varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Lemon Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 17°C (63°F) | 34 mm (1.3 inches) | 83% | high |
| February Weather | 21°C (69°F) | 46 mm (1.8 inches) | 80% | very high |
| March Weather | 21°C (71°F) | 19 mm (0.7 inches) | 75% | very high |
| April Weather | 24°C (75°F) | 67 mm (2.6 inches) | 68% | extreme |
| May Weather | 26°C (79°F) | 133 mm (5.3 inches) | 65% | extreme |
| June Weather | 27°C (81°F) | 248 mm (9.8 inches) | 73% | extreme |
| July Weather | 27°C (82°F) | 282 mm (11.1 inches) | 77% | extreme |
| August Weather | 28°C (82°F) | 273 mm (10.8 inches) | 80% | extreme |
| September Weather | 27°C (81°F) | 194 mm (7.6 inches) | 83% | extreme |
| October Weather | 26°C (79°F) | 72 mm (2.9 inches) | 83% | very high |
| November Weather | 21°C (71°F) | 46 mm (1.8 inches) | 83% | high |
| December Weather | 19°C (66°F) | 54 mm (2.1 inches) | 84% | moderate |