January Weather in Saint David, United States

Last updated: June 24, 2025

In January in Saint David, United States, the average temperature hovers around -3°C (27°F). Expect extremes, with temperatures dipping as low as -29°C (-20°F) and peaking at 15°C (59°F). During this chilly month, precipitation reaches 62 mm (2.4 in) over the span of 8 days, while the average humidity stays high at 81%. Stay warm!

January Temperature in Saint David

In January in Saint David, the average temperature is -3°C (27°F), with maximums reaching up to 15°C (59°F) and minimums dipping as low as -29°C (-20°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.

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

The chart illustrates January temperature patterns in Saint David, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint David, January typically has an average temperature of -3°C (27°F), with highs reaching up to 15°C (59°F) and lows dropping to around -29°C (-20°F).

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

January Precipitation in Saint David

In Saint David in January, the precipitation amount is 62 mm (2.4 in) over the course of 8 days.

January Precipitation Trends in Saint David

The chart displays monthly precipitation patterns in Saint David, 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 David, January typically receives around 62 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 Saint David

In Saint David in January humidity is 81%. 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 forcing you to bundle up tightly to fend off the cold dampness.

January Average Humidity in Saint David

This chart illustrates the average monthly humidity levels in Saint David, 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 David is approximately 81%, 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 David

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

Maximum UV Index Levels in Saint David for January

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

Data source: Saint David 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 David Compares to Other Months

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

This table compares monthly weather conditions in Saint David, 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)	62 mm (2.4 inches)	81%	moderate
February Weather	-1°C (30°F)	68 mm (2.7 inches)	81%	moderate
March Weather	6°C (42°F)	121 mm (4.8 inches)	81%	high
April Weather	11°C (52°F)	113 mm (4.4 inches)	82%	very high
May Weather	18°C (65°F)	168 mm (6.6 inches)	78%	very high
June Weather	24°C (75°F)	152 mm (6.0 inches)	81%	extreme
July Weather	25°C (78°F)	106 mm (4.2 inches)	79%	very high
August Weather	24°C (75°F)	87 mm (3.4 inches)	77%	very high
September Weather	21°C (70°F)	72 mm (2.8 inches)	78%	very high
October Weather	13°C (56°F)	121 mm (4.8 inches)	78%	high
November Weather	5°C (41°F)	59 mm (2.3 inches)	87%	moderate
December Weather	1°C (35°F)	53 mm (2.1 inches)	84%	low