January Weather in Lemon Grove, United States

Last updated: June 24, 2025

In January, the average temperature in Lemon Grove, United States hovers around 17°C (63°F), creating a pleasant climate for outdoor activities. Temperatures can vary significantly, with minimums dipping to -2°C (28°F) and maximums soaring up to 30°C (86°F). Rain lovers should be prepared, as the area experiences an average precipitation of 34 mm (1.3 in) over approximately 4 days. With an average humidity of 83%, expect a fresh and invigorating atmosphere!

January Temperature in Lemon Grove

In January in Lemon Grove, the average temperature is 17°C (63°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -2°C (28°F). This diverse range of temperatures makes it essential for travelers to pack accordingly for both warm and chilly conditions.

January Weather in Lemon Grove: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Lemon Grove, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lemon Grove, January typically has an average temperature of 17°C (63°F), with highs reaching up to 30°C (86°F) and lows dropping to around -2°C (28°F).

Data source: Temperature data for Lemon Grove generated using information from the Copernicus Climate Change Service.

January Precipitation in Lemon Grove

In Lemon Grove in January, the precipitation amount is 34 mm (1.3 in) over a span of 4 days.

January Precipitation Trends in Lemon Grove

The chart displays monthly precipitation patterns in Lemon Grove, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Lemon Grove, January typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Lemon Grove

In Lemon Grove in January humidity is 83%. With an average temperature of 17°C (63°F), this humidity feels like a warm, sticky embrace that can make traveling uncomfortable, as the air clings to the skin and creates a heavy atmosphere, often leading to fatigue and a longing for the cooling relief of shade or air conditioning.

January Average Humidity in Lemon Grove

This chart illustrates the average monthly humidity levels in Lemon Grove, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Lemon Grove is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Lemon Grove

In Lemon Grove in January, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Lemon Grove, you can refer to this Hourly UV Index in Lemon Grove.

Maximum UV Index Levels in Lemon Grove for January

The chart shows the monthly maximum UV Index (UVI) for Lemon Grove in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Lemon Grove typically reaches 6, which falls under the high exposure category.

Data source: Lemon Grove January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Lemon Grove Compares to Other Months

Weather in Lemon Grove varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Lemon Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Lemon Grove, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	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