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January Weather in Hollister, United States

Last updated: June 24, 2025

In January, the average temperature in Hollister, United States hovers around 3°C (37°F). However, be prepared for a range of temperatures, with lows dropping to -17°C (1°F) and highs peaking at 22°C (72°F). This month also brings approximately 80 mm (3.2 in) of precipitation over 8 days, contributing to an average humidity of 81%.

January Temperature in Hollister

In January in Hollister, the average temperature is 3°C (37°F), with maximums reaching up to 22°C (72°F) and minimums dropping as low as -17°C (1°F). Be prepared for a wide range of temperatures during your travels, ensuring you pack layers to stay comfortable throughout the day.

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 3°C (37°F), with highs reaching up to 22°C (72°F) and lows dropping to around -17°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec374051576776807773604843
Data source: Temperature data for Hollister generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Hollister

In Hollister in January, the total precipitation amount is 80 mm (3.2 in), occurring over a span of 8 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 80 mm (3.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec81941401561728777134531266974
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Hollister

In Hollister in January, humidity is 81%. With an average temperature of 3°C (37°F), this humidity feels like a cold, damp blanket wrapping around you, making travel uncomfortable and only for the most adventurous.

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 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
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 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 Hollister, you can check the information here.

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 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)80 mm (3.2 inches)81%moderate
February Weather4°C (40°F)94 mm (3.7 inches)78%high
March Weather10°C (51°F)140 mm (5.5 inches)76%very high
April Weather14°C (57°F)156 mm (6.1 inches)78%very high
May Weather20°C (67°F)172 mm (6.8 inches)83%extreme
June Weather24°C (76°F)87 mm (3.4 inches)83%extreme
July Weather26°C (80°F)77 mm (3.0 inches)78%extreme
August Weather25°C (77°F)134 mm (5.3 inches)68%very high
September Weather23°C (74°F)53 mm (2.1 inches)64%very high
October Weather16°C (60°F)126 mm (5.0 inches)70%high
November Weather9°C (48°F)69 mm (2.7 inches)83%moderate
December Weather6°C (43°F)74 mm (2.9 inches)87%moderate

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