January Weather in Hollister, United States

Last updated: June 24, 2025

In January, the average temperature in Hollister, United States hovers around 6°C (43°F). Temperatures can dip as low as -18°C (0°F) or reach a pleasant 25°C (76°F). Expect about 91 mm (3.6 in) of precipitation spread over 9 days, along with a high average humidity of 84%.

January Temperature in Hollister

In January in Hollister, the average temperature is 6°C (43°F). Maximums can reach 25°C (76°F) and minimums can be as low as -18°C (0°F). It's advisable to pack layers for your trip to adapt to the wide temperature range.

January Weather in Hollister: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Hollister, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hollister, January typically has an average temperature of 6°C (43°F), with highs reaching up to 25°C (76°F) and lows dropping to around -18°C (0°F).

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

January Precipitation in Hollister

In Hollister in January, the precipitation amount is 91 mm (3.6 in) spread over 9 days.

January Precipitation Trends in Hollister

The chart displays monthly precipitation patterns in Hollister, 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 Hollister, January typically receives around 91 mm (3.6 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 Hollister

In Hollister in January, humidity is 84%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor excursions uncomfortable and prompting travelers to seek refuge indoors or find warm, sheltered spots to enjoy their surroundings.

January Average Humidity in Hollister

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

In Hollister in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Hollister for better planning.

Maximum UV Index Levels in Hollister for January

The chart shows the monthly maximum UV Index (UVI) for Hollister 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 Hollister typically reaches 4, which falls under the moderate exposure category.

Data source: Hollister 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 Hollister Compares to Other Months

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

This table compares monthly weather conditions in Hollister, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	91 mm (3.6 inches)	84%	moderate
February Weather	9°C (48°F)	111 mm (4.4 inches)	84%	high
March Weather	11°C (52°F)	85 mm (3.3 inches)	84%	very high
April Weather	16°C (62°F)	107 mm (4.2 inches)	82%	very high
May Weather	21°C (70°F)	121 mm (4.8 inches)	82%	very high
June Weather	24°C (76°F)	135 mm (5.3 inches)	83%	extreme
July Weather	27°C (80°F)	132 mm (5.2 inches)	79%	extreme
August Weather	26°C (79°F)	157 mm (6.2 inches)	77%	very high
September Weather	23°C (74°F)	122 mm (4.8 inches)	75%	very high
October Weather	18°C (65°F)	91 mm (3.6 inches)	81%	very high
November Weather	11°C (51°F)	82 mm (3.2 inches)	87%	moderate
December Weather	8°C (47°F)	99 mm (3.9 inches)	85%	moderate