January Weather in Pima, United States

Last updated: June 24, 2025

In January, the average temperature in Pima, United States hovers around 7°C (45°F), with a minimum drop to a chilly -10°C (15°F) and occasional peaks reaching up to 22°C (71°F). Expect about 32 mm (1.3 in) of precipitation spread over 4 days, while the average humidity remains relatively high at 81%. Prepare accordingly for a mix of crisp weather and damp days!

January Temperature in Pima

In January in Pima, the average temperature is 7°C (45°F). Maximum temperatures can reach 22°C (71°F), while minimums can drop as low as -10°C (15°F). Be prepared for a wide range of temperatures when traveling to Pima during this time.

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

The chart illustrates January temperature patterns in Pima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pima, January typically has an average temperature of 7°C (45°F), with highs reaching up to 22°C (71°F) and lows dropping to around -10°C (15°F).

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

January Precipitation in Pima

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

January Precipitation Trends in Pima

The chart displays monthly precipitation patterns in Pima, 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 Pima, 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.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Pima

In Pima in January, humidity is 81%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill wrapping around you, making outdoor adventures slightly uncomfortable and requiring extra layers to stay warm while exploring.

January Average Humidity in Pima

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

In Pima 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 Pima.

Maximum UV Index Levels in Pima for January

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

Data source: Pima 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 Pima Compares to Other Months

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

This table compares monthly weather conditions in Pima, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	32 mm (1.3 inches)	81%	moderate
February Weather	9°C (49°F)	37 mm (1.5 inches)	82%	high
March Weather	13°C (56°F)	26 mm (1.0 inches)	68%	very high
April Weather	18°C (65°F)	2 mm (0.1 inches)	55%	extreme
May Weather	22°C (73°F)	4 mm (0.2 inches)	45%	extreme
June Weather	28°C (83°F)	4 mm (0.2 inches)	37%	extreme
July Weather	29°C (84°F)	51 mm (2.0 inches)	43%	extreme
August Weather	28°C (83°F)	21 mm (0.8 inches)	53%	extreme
September Weather	25°C (77°F)	28 mm (1.1 inches)	66%	extreme
October Weather	19°C (66°F)	16 mm (0.6 inches)	72%	very high
November Weather	13°C (56°F)	17 mm (0.7 inches)	81%	high
December Weather	8°C (47°F)	28 mm (1.1 inches)	84%	moderate