January Weather in Upland, United States

Last updated: June 24, 2025

In January, the average temperature in Upland, United States hovers around 2°C (36°F), with extremes ranging from a chilly -17°C (1°F) to a comparatively warm 20°C (67°F). Expect some precipitation, with about 64 mm (2.5 in) falling over 8 days. The air tends to feel quite damp, boasting an average humidity of 84%. Prepare accordingly for a mix of cold and wet conditions!

January Temperature in Upland

In January in Upland, the average temperature is 2°C (36°F). The maximum can reach 20°C (67°F), while the minimum can drop as low as -17°C (1°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates January temperature patterns in Upland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Upland, January typically has an average temperature of 2°C (36°F), with highs reaching up to 20°C (67°F) and lows dropping to around -17°C (1°F).

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

January Precipitation in Upland

In Upland in January, the precipitation amount is 64 mm (2.5 in) over the course of 8 days.

January Precipitation Trends in Upland

The chart displays monthly precipitation patterns in Upland, 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 Upland, January typically receives around 64 mm (2.5 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 Upland

In Upland in January, humidity is 84%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making outdoor activities less inviting and requiring extra layers to stay comfortable while traveling.

January Average Humidity in Upland

This chart illustrates the average monthly humidity levels in Upland, 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 Upland is approximately 84%, 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 Upland

In Upland 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 Upland, you can check the information here.

Maximum UV Index Levels in Upland for January

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

Data source: Upland 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 Upland Compares to Other Months

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

This table compares monthly weather conditions in Upland, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	64 mm (2.5 inches)	84%	moderate
February Weather	4°C (39°F)	103 mm (4.1 inches)	83%	moderate
March Weather	7°C (45°F)	106 mm (4.2 inches)	83%	high
April Weather	13°C (55°F)	105 mm (4.1 inches)	81%	very high
May Weather	18°C (65°F)	135 mm (5.3 inches)	78%	very high
June Weather	23°C (74°F)	118 mm (4.7 inches)	79%	very high
July Weather	26°C (79°F)	136 mm (5.4 inches)	74%	very high
August Weather	25°C (77°F)	140 mm (5.5 inches)	72%	very high
September Weather	22°C (71°F)	100 mm (3.9 inches)	75%	very high
October Weather	16°C (61°F)	109 mm (4.3 inches)	81%	high
November Weather	8°C (47°F)	83 mm (3.3 inches)	85%	moderate
December Weather	4°C (40°F)	100 mm (3.9 inches)	84%	moderate