January Weather in Lagunitas-Forest Knolls, United States

Last updated: June 24, 2025

In January, the average temperature in Lagunitas-Forest Knolls, United States hovers around 11°C (51°F), with a minimum of 3°C (38°F) and a maximum reaching up to 20°C (69°F). Expect about 118 mm (4.7 in) of precipitation spread over 9 days. With an average humidity of 85%, be prepared for a moist climate that offers a unique charm.

January Temperature in Lagunitas-Forest Knolls

In January in Lagunitas-Forest Knolls, the average temperature is 11°C (51°F). The maximum can reach 20°C (69°F), while the minimum can dip as low as 3°C (38°F). This mild climate makes Lagunitas-Forest Knolls a pleasant destination for travelers seeking moderate temperatures.

January Weather in Lagunitas-Forest Knolls: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Lagunitas-Forest Knolls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lagunitas-Forest Knolls, January typically has an average temperature of 11°C (51°F), with highs reaching up to 20°C (69°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Lagunitas-Forest Knolls generated using information from the Copernicus Climate Change Service.

January Precipitation in Lagunitas-Forest Knolls

In Lagunitas-Forest Knolls in January, the precipitation amount is 118 mm (4.7 in), occurring over a span of 9 days.

January Precipitation Trends in Lagunitas-Forest Knolls

The chart displays monthly precipitation patterns in Lagunitas-Forest Knolls, 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 Lagunitas-Forest Knolls, January typically receives around 118 mm (4.7 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Lagunitas-Forest Knolls

In Lagunitas-Forest Knolls in January humidity is 85%. With an average temperature of 11°C (51°F), this humidity feels like a chilly embrace that seeps into your bones, making outdoor activities a bit uncomfortable and encouraging a more relaxed, slow-paced exploration of the area.

January Average Humidity in Lagunitas-Forest Knolls

This chart illustrates the average monthly humidity levels in Lagunitas-Forest Knolls, 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 Lagunitas-Forest Knolls is approximately 85%, 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 Lagunitas-Forest Knolls

In Lagunitas-Forest Knolls in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Lagunitas-Forest Knolls, you can check the information here.

Maximum UV Index Levels in Lagunitas-Forest Knolls for January

The chart shows the monthly maximum UV Index (UVI) for Lagunitas-Forest Knolls 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 Lagunitas-Forest Knolls typically reaches 3, which falls under the moderate exposure category.

Data source: Lagunitas-Forest Knolls 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 Lagunitas-Forest Knolls Compares to Other Months

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

This table compares monthly weather conditions in Lagunitas-Forest Knolls, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	118 mm (4.7 inches)	85%	moderate
February Weather	11°C (52°F)	131 mm (5.1 inches)	82%	moderate
March Weather	11°C (52°F)	82 mm (3.2 inches)	82%	very high
April Weather	12°C (54°F)	40 mm (1.6 inches)	79%	very high
May Weather	13°C (56°F)	21 mm (0.8 inches)	83%	very high
June Weather	15°C (59°F)	2 mm (0.1 inches)	84%	extreme
July Weather	15°C (59°F)	2 mm (0.1 inches)	87%	extreme
August Weather	16°C (60°F)	2 mm (0.1 inches)	87%	very high
September Weather	16°C (62°F)	2 mm (0.1 inches)	86%	very high
October Weather	15°C (59°F)	35 mm (1.4 inches)	80%	high
November Weather	12°C (55°F)	54 mm (2.1 inches)	79%	moderate
December Weather	11°C (51°F)	102 mm (4.0 inches)	79%	moderate