February Weather in Grass Valley, United States

Last updated: June 24, 2025

In February, the average temperature in Grass Valley, United States hovers around 8°C (46°F), with a minimum low of -7°C (19°F) and a maximum high reaching 25°C (77°F). This period experiences significant rainfall, accumulating 279 mm (11.0 in) over approximately 10 days. Additionally, the humidity level remains relatively high, averaging at 84%, contributing to a rather moist atmosphere.

February Temperature in Grass Valley

In February in Grass Valley, the average temperature is 8°C (46°F), with maximums reaching up to 25°C (77°F) and minimums dropping as low as -7°C (19°F). This wide range makes it essential for travelers to pack layers and be prepared for varying weather conditions.

February Weather in Grass Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Grass Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grass Valley, February typically has an average temperature of 8°C (46°F), with highs reaching up to 25°C (77°F) and lows dropping to around -7°C (19°F).

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

February Precipitation in Grass Valley

In Grass Valley in February, the precipitation amount is 279 mm (11.0 in) over a span of 10 days.

February Precipitation Trends in Grass Valley

The chart displays monthly precipitation patterns in Grass Valley, 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 Grass Valley, February typically receives around 279 mm (11.0 inches) of precipitation spread over approximately 10 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 Grass Valley

In Grass Valley in February humidity is 84%. With an average temperature of 8°C (46°F), this humidity feels like a chilly mist wrapping around you, making outdoor exploration cumbersome and layering your clothing a necessity for comfort.

February Average Humidity in Grass Valley

This chart illustrates the average monthly humidity levels in Grass Valley, 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 Grass Valley is approximately 84%, 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 Grass Valley

In Grass Valley in February, 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 Grass Valley.

Maximum UV Index Levels in Grass Valley for February

The chart shows the monthly maximum UV Index (UVI) for Grass Valley 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 Grass Valley typically reaches 5, which falls under the moderate exposure category.

Data source: Grass Valley 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 Grass Valley Compares to Other Months

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

This table compares monthly weather conditions in Grass Valley, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	269 mm (10.6 inches)	84%	moderate
February Weather	8°C (46°F)	279 mm (11.0 inches)	84%	moderate
March Weather	9°C (48°F)	267 mm (10.5 inches)	83%	high
April Weather	13°C (55°F)	129 mm (5.1 inches)	81%	very high
May Weather	17°C (62°F)	76 mm (3.0 inches)	74%	very high
June Weather	22°C (72°F)	13 mm (0.5 inches)	64%	extreme
July Weather	26°C (79°F)	1 mm (0.0 inches)	44%	extreme
August Weather	25°C (77°F)	2 mm (0.1 inches)	36%	very high
September Weather	21°C (70°F)	23 mm (0.9 inches)	44%	very high
October Weather	15°C (60°F)	78 mm (3.1 inches)	65%	high
November Weather	10°C (51°F)	157 mm (6.2 inches)	84%	moderate
December Weather	7°C (44°F)	215 mm (8.4 inches)	83%	moderate