February Weather in Rancho Cucamonga, United States

Last updated: June 24, 2025

In February, the average temperature in Rancho Cucamonga, United States hovers around 12°C (54°F), with extremes ranging from a chilly -1°C (31°F) to a warm 29°C (85°F). Expect about 84 mm (3.3 in) of precipitation spread over 6 days, contributing to an average humidity of 79%.

February Temperature in Rancho Cucamonga

In February in Rancho Cucamonga, the average temperature is 12°C (54°F). Maximum temperatures can reach 29°C (85°F), while minimum temperatures can drop as low as -1°C (31°F). Be sure to pack layers to prepare for both warm afternoons and cool evenings during your travels.

February Weather in Rancho Cucamonga: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Rancho Cucamonga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rancho Cucamonga, February typically has an average temperature of 12°C (54°F), with highs reaching up to 29°C (85°F) and lows dropping to around -1°C (31°F).

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

February Precipitation in Rancho Cucamonga

In Rancho Cucamonga in February, the precipitation amount is 84 mm (3.3 in) accumulated over the course of 6 days.

February Precipitation Trends in Rancho Cucamonga

The chart displays monthly precipitation patterns in Rancho Cucamonga, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Rancho Cucamonga, February typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 6 days.

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

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Millimeters (mm) Inches (in)

February Humidity in Rancho Cucamonga

In Rancho Cucamonga in February, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

February Average Humidity in Rancho Cucamonga

This chart illustrates the average monthly humidity levels in Rancho Cucamonga, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Rancho Cucamonga is approximately 79%, offering insight into how humid the weather typically is during this month.

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

February UV Index in Rancho Cucamonga

In Rancho Cucamonga in February, 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 Rancho Cucamonga, you can refer to this Hourly UV Index in Rancho Cucamonga.

Maximum UV Index Levels in Rancho Cucamonga for February

The chart shows the monthly maximum UV Index (UVI) for Rancho Cucamonga in February, 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 February, the maximum UV index in Rancho Cucamonga typically reaches 6, which falls under the high exposure category.

Data source: Rancho Cucamonga February 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 February Weather in Rancho Cucamonga Compares to Other Months

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

This table compares monthly weather conditions in Rancho Cucamonga, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	87 mm (3.4 inches)	74%	moderate
February Weather	12°C (54°F)	84 mm (3.3 inches)	79%	high
March Weather	14°C (57°F)	95 mm (3.7 inches)	75%	very high
April Weather	17°C (63°F)	35 mm (1.4 inches)	70%	very high
May Weather	18°C (66°F)	23 mm (0.9 inches)	70%	very high
June Weather	23°C (73°F)	3 mm (0.1 inches)	72%	extreme
July Weather	26°C (80°F)	1 mm (0.1 inches)	73%	extreme
August Weather	26°C (80°F)	2 mm (0.1 inches)	69%	very high
September Weather	24°C (76°F)	5 mm (0.2 inches)	68%	very high
October Weather	20°C (69°F)	15 mm (0.6 inches)	67%	high
November Weather	16°C (61°F)	35 mm (1.4 inches)	68%	moderate
December Weather	12°C (54°F)	87 mm (3.4 inches)	71%	moderate