January Weather in Saint George, United States

Last updated: June 24, 2025

In January, the average temperature in Saint George, United States hovers around -1°C (31°F). However, temperatures can fluctuate dramatically, reaching a minimum of -22°C (-8°F) and soaring to a maximum of 19°C (66°F). The weather also brings some precipitation, with an average of 32 mm (1.3 in) over 4 days, while humidity remains relatively high at 76%.

January Temperature in Saint George

In January in Saint George, the average temperature is -1°C (31°F), with a maximum that can reach 19°C (66°F) and a minimum that can dip as low as -22°C (-8°F). Be prepared for a wide range of temperatures, ensuring you pack layers for your trip.

January Weather in Saint George: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Saint George, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint George, January typically has an average temperature of -1°C (31°F), with highs reaching up to 19°C (66°F) and lows dropping to around -22°C (-8°F).

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

January Precipitation in Saint George

In Saint George in January, the total precipitation amount is 32 mm (1.3 in), accumulated over a period of 4 days.

January Precipitation Trends in Saint George

The chart displays monthly precipitation patterns in Saint George, 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 Saint George, January typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 4 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 Saint George

In Saint George in January, humidity is 76%. With an average temperature of -1°C (31°F), this humidity feels like a frigid chill clinging to your skin, making travel quite uncomfortable as the cold air intensifies the dampness, leaving you feeling even colder than the actual temperature.

January Average Humidity in Saint George

This chart illustrates the average monthly humidity levels in Saint George, 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 Saint George is approximately 76%, 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 Saint George

In Saint George 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 Saint George, you can check the information here.

Maximum UV Index Levels in Saint George for January

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

Data source: Saint George 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 Saint George Compares to Other Months

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

This table compares monthly weather conditions in Saint George, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	32 mm (1.3 inches)	76%	moderate
February Weather	0°C (32°F)	29 mm (1.1 inches)	77%	moderate
March Weather	8°C (46°F)	88 mm (3.5 inches)	70%	high
April Weather	12°C (54°F)	69 mm (2.7 inches)	73%	very high
May Weather	19°C (66°F)	187 mm (7.4 inches)	82%	very high
June Weather	26°C (78°F)	86 mm (3.4 inches)	82%	extreme
July Weather	27°C (81°F)	81 mm (3.2 inches)	81%	extreme
August Weather	25°C (77°F)	121 mm (4.7 inches)	78%	very high
September Weather	22°C (73°F)	69 mm (2.7 inches)	71%	very high
October Weather	14°C (57°F)	98 mm (3.8 inches)	71%	high
November Weather	7°C (44°F)	34 mm (1.3 inches)	81%	moderate
December Weather	3°C (37°F)	28 mm (1.1 inches)	84%	moderate