January Weather in Surprise, United States

Last updated: June 24, 2025

In January, the average temperature in Surprise, United States is a mild 12°C (54°F). Expect a range from a chilly -1°C (31°F) to a warm 27°C (81°F). During this time, precipitation averages 29 mm (1.1 in) over 4 days, contributing to an average humidity of 76%.

January Temperature in Surprise

In January in Surprise, the average temperature is 12°C (54°F). The maximum can reach 27°C (81°F), while the minimum can drop as low as -1°C (31°F). This variation in temperatures makes Surprise a versatile destination for travelers, offering both warm and cool experiences throughout the month.

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

The chart illustrates January temperature patterns in Surprise, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Surprise, January typically has an average temperature of 12°C (54°F), with highs reaching up to 27°C (81°F) and lows dropping to around -1°C (31°F).

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

January Precipitation in Surprise

In Surprise in January, the precipitation amount is 29 mm (1.1 in) over a span of 4 days.

January Precipitation Trends in Surprise

The chart displays monthly precipitation patterns in Surprise, 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 Surprise, January typically receives around 29 mm (1.1 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 Surprise

In Surprise in January, humidity is 76%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration while exploring.

January Average Humidity in Surprise

This chart illustrates the average monthly humidity levels in Surprise, 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 Surprise is approximately 76%, 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 Surprise

In Surprise 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 Surprise for better planning.

Maximum UV Index Levels in Surprise for January

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

Data source: Surprise 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 Surprise Compares to Other Months

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

This table compares monthly weather conditions in Surprise, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	29 mm (1.1 inches)	76%	moderate
February Weather	13°C (56°F)	39 mm (1.5 inches)	79%	high
March Weather	17°C (63°F)	35 mm (1.4 inches)	67%	very high
April Weather	23°C (73°F)	1 mm (0.1 inches)	55%	very high
May Weather	26°C (80°F)	2 mm (0.1 inches)	40%	extreme
June Weather	32°C (91°F)	3 mm (0.1 inches)	33%	extreme
July Weather	34°C (93°F)	41 mm (1.6 inches)	34%	extreme
August Weather	34°C (93°F)	29 mm (1.2 inches)	48%	extreme
September Weather	30°C (87°F)	21 mm (0.8 inches)	64%	very high
October Weather	23°C (74°F)	22 mm (0.9 inches)	67%	high
November Weather	18°C (65°F)	26 mm (1.0 inches)	77%	moderate
December Weather	12°C (54°F)	23 mm (0.9 inches)	82%	moderate