January Weather in Gridley, United States

Last updated: June 24, 2025

In January, the average temperature in Gridley, United States hovers around -3°C (27°F). However, be prepared for a range of temperatures, with a minimum dipping as low as -30°C (-22°F) and a maximum reaching 16°C (60°F). Expect about 61 mm (2.4 in) of precipitation spread over 8 days, contributing to an average humidity level of 82%.

January Temperature in Gridley

In January in Gridley, the average temperature is -3°C (27°F), with maximums reaching 16°C (60°F) and minimums dropping as low as -30°C (-22°F). Be prepared for a wide range of temperatures when traveling to Gridley this month.

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

The chart illustrates January temperature patterns in Gridley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gridley, January typically has an average temperature of -3°C (27°F), with highs reaching up to 16°C (60°F) and lows dropping to around -30°C (-22°F).

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

January Precipitation in Gridley

In Gridley in January, the precipitation amount is 61 mm (2.4 in) distributed over 8 days.

January Precipitation Trends in Gridley

The chart displays monthly precipitation patterns in Gridley, 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 Gridley, January typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 8 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 Gridley

In Gridley in January, humidity is 82%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm while navigating through the damp air.

January Average Humidity in Gridley

This chart illustrates the average monthly humidity levels in Gridley, 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 Gridley is approximately 82%, 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 Gridley

In Gridley 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 Gridley, you can check the information here.

Maximum UV Index Levels in Gridley for January

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

Data source: Gridley 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 Gridley Compares to Other Months

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

This table compares monthly weather conditions in Gridley, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	61 mm (2.4 inches)	82%	moderate
February Weather	-2°C (29°F)	68 mm (2.7 inches)	83%	moderate
March Weather	5°C (42°F)	105 mm (4.1 inches)	84%	high
April Weather	10°C (51°F)	116 mm (4.6 inches)	85%	very high
May Weather	18°C (64°F)	161 mm (6.3 inches)	79%	very high
June Weather	23°C (74°F)	126 mm (5.0 inches)	82%	extreme
July Weather	25°C (77°F)	106 mm (4.2 inches)	80%	very high
August Weather	23°C (74°F)	87 mm (3.4 inches)	81%	very high
September Weather	21°C (70°F)	67 mm (2.7 inches)	80%	very high
October Weather	13°C (56°F)	127 mm (5.0 inches)	82%	high
November Weather	5°C (40°F)	57 mm (2.2 inches)	88%	moderate
December Weather	1°C (34°F)	55 mm (2.1 inches)	84%	low