January Weather in Chester Hill, United States

Last updated: June 24, 2025

In January, the average temperature in Chester Hill, United States hovers around -3°C (27°F). Expect chilly extremes with a minimum of -27°C (-16°F) and a generous maximum of 17°C (63°F). During this month, precipitation is notable, averaging 79 mm (3.1 in) over 12 days, all while maintaining a high humidity level of 89%. Prepare accordingly for the wintry weather!

January Temperature in Chester Hill

In January in Chester Hill, the average temperature is -3°C (27°F), with maximums reaching up to 17°C (63°F) and minimums plummeting as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and lighter clothing for varied weather conditions.

January Weather in Chester Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Chester Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chester Hill, January typically has an average temperature of -3°C (27°F), with highs reaching up to 17°C (63°F) and lows dropping to around -27°C (-16°F).

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

January Precipitation in Chester Hill

In Chester Hill in January, the precipitation amount is 79 mm (3.1 in) over a period of 12 days.

January Precipitation Trends in Chester Hill

The chart displays monthly precipitation patterns in Chester Hill, 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 Chester Hill, January typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 12 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 Chester Hill

In Chester Hill in January, humidity is 89%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and breath a visible frost as you navigate through the wintery landscape.

January Average Humidity in Chester Hill

This chart illustrates the average monthly humidity levels in Chester Hill, 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 Chester Hill is approximately 89%, 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 Chester Hill

In Chester Hill 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 Chester Hill, you can check the information here.

Maximum UV Index Levels in Chester Hill for January

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

Data source: Chester Hill 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 Chester Hill Compares to Other Months

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

This table compares monthly weather conditions in Chester Hill, 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)	79 mm (3.1 inches)	89%	moderate
February Weather	-1°C (31°F)	109 mm (4.3 inches)	90%	moderate
March Weather	3°C (38°F)	92 mm (3.6 inches)	89%	high
April Weather	9°C (48°F)	119 mm (4.7 inches)	88%	very high
May Weather	15°C (59°F)	145 mm (5.7 inches)	80%	very high
June Weather	19°C (67°F)	115 mm (4.5 inches)	79%	very high
July Weather	22°C (72°F)	121 mm (4.8 inches)	74%	very high
August Weather	21°C (71°F)	107 mm (4.2 inches)	64%	very high
September Weather	18°C (64°F)	122 mm (4.8 inches)	67%	very high
October Weather	12°C (54°F)	117 mm (4.6 inches)	81%	high
November Weather	4°C (39°F)	87 mm (3.4 inches)	89%	moderate
December Weather	0°C (33°F)	95 mm (3.8 inches)	88%	low