January Weather in Sierra Vista, United States

Last updated: June 24, 2025

In January, the average temperature in Sierra Vista, United States hovers around 8°C (47°F). Expect a minimum chill of -6°C (21°F) and a potential high of 23°C (74°F). With 20 mm (0.8 in) of precipitation spread over 3 days, and an average humidity of 74%, be prepared for a mix of crisp air and occasional rain.

January Temperature in Sierra Vista

In January in Sierra Vista, the average temperature is 8°C (47°F). Maximum temperatures can reach 23°C (74°F), while minimums can drop as low as -6°C (21°F). Be prepared for a wide range of temperatures, making it essential to pack both warm and light clothing for your travels.

January Weather in Sierra Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sierra Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sierra Vista, January typically has an average temperature of 8°C (47°F), with highs reaching up to 23°C (74°F) and lows dropping to around -6°C (21°F).

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

January Precipitation in Sierra Vista

In Sierra Vista in January, the precipitation amount is 20 mm (0.8 in) accumulated over a period of 3 days.

January Precipitation Trends in Sierra Vista

The chart displays monthly precipitation patterns in Sierra Vista, 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 Sierra Vista, January typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 3 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 Sierra Vista

In Sierra Vista in January humidity is 74%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that seeps into your bones, making every outdoor excursion feel more invigorating yet slightly uncomfortable, as the moisture in the air intensifies the cold and leaves you yearning for warmer layers.

January Average Humidity in Sierra Vista

This chart illustrates the average monthly humidity levels in Sierra Vista, 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 Sierra Vista is approximately 74%, 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 Sierra Vista

In Sierra Vista in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Sierra Vista.

Maximum UV Index Levels in Sierra Vista for January

The chart shows the monthly maximum UV Index (UVI) for Sierra Vista 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 Sierra Vista typically reaches 5, which falls under the moderate exposure category.

Data source: Sierra Vista 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 Sierra Vista Compares to Other Months

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

This table compares monthly weather conditions in Sierra Vista, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	20 mm (0.8 inches)	74%	moderate
February Weather	9°C (49°F)	25 mm (1.0 inches)	71%	high
March Weather	13°C (55°F)	17 mm (0.7 inches)	60%	very high
April Weather	17°C (64°F)	4 mm (0.2 inches)	43%	extreme
May Weather	21°C (71°F)	3 mm (0.1 inches)	32%	extreme
June Weather	27°C (81°F)	8 mm (0.3 inches)	28%	extreme
July Weather	26°C (79°F)	89 mm (3.5 inches)	38%	extreme
August Weather	25°C (78°F)	71 mm (2.8 inches)	60%	extreme
September Weather	23°C (74°F)	36 mm (1.4 inches)	72%	extreme
October Weather	18°C (65°F)	18 mm (0.7 inches)	66%	very high
November Weather	14°C (57°F)	27 mm (1.1 inches)	74%	high
December Weather	9°C (48°F)	22 mm (0.9 inches)	81%	moderate