January Weather in Arcadia, United States

Last updated: June 24, 2025

In Arcadia, United States, the average temperature in January hovers around 9°C (48°F). While you might experience a brisk chill with a minimum of -12°C (11°F), warmer days can reach up to 27°C (80°F). Be prepared for 119 mm (4.7 in) of precipitation over 9 days, and expect average humidity levels of 82%.

January Temperature in Arcadia

In January in Arcadia, the average temperature is 9°C (48°F), with maximums reaching 27°C (80°F) and minimums dropping as low as -12°C (11°F). This wide range of temperatures makes it essential for travelers to pack accordingly to ensure comfort during their stay.

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

The chart illustrates January temperature patterns in Arcadia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arcadia, January typically has an average temperature of 9°C (48°F), with highs reaching up to 27°C (80°F) and lows dropping to around -12°C (11°F).

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

January Precipitation in Arcadia

In Arcadia in January, the precipitation amount is 119 mm (4.7 in) occurring over a span of 9 days.

January Precipitation Trends in Arcadia

The chart displays monthly precipitation patterns in Arcadia, 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 Arcadia, January typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 9 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 Arcadia

In Arcadia in January, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.

January Average Humidity in Arcadia

This chart illustrates the average monthly humidity levels in Arcadia, 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 Arcadia 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 Arcadia

In Arcadia in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Arcadia for better planning.

Maximum UV Index Levels in Arcadia for January

The chart shows the monthly maximum UV Index (UVI) for Arcadia 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 Arcadia typically reaches 4, which falls under the moderate exposure category.

Data source: Arcadia 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 Arcadia Compares to Other Months

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

This table compares monthly weather conditions in Arcadia, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	119 mm (4.7 inches)	82%	moderate
February Weather	11°C (52°F)	171 mm (6.7 inches)	80%	high
March Weather	16°C (61°F)	149 mm (5.9 inches)	78%	very high
April Weather	18°C (65°F)	194 mm (7.6 inches)	79%	extreme
May Weather	23°C (74°F)	146 mm (5.7 inches)	81%	extreme
June Weather	27°C (81°F)	112 mm (4.4 inches)	77%	extreme
July Weather	28°C (83°F)	96 mm (3.8 inches)	72%	extreme
August Weather	28°C (83°F)	113 mm (4.4 inches)	65%	extreme
September Weather	26°C (79°F)	98 mm (3.9 inches)	63%	very high
October Weather	20°C (68°F)	118 mm (4.6 inches)	70%	very high
November Weather	13°C (56°F)	87 mm (3.4 inches)	82%	high
December Weather	11°C (52°F)	133 mm (5.2 inches)	88%	moderate