January Weather in Caldwell, United States

Last updated: June 24, 2025

In Caldwell, United States, the average temperature for January hovers around 1°C (34°F). Expect some extreme fluctuations, with minimums dipping as low as -26°C (-15°F) and maximums reaching up to 15°C (59°F). During this month, you can anticipate 42 mm (1.7 in) of precipitation spread across 9 days, complemented by a striking average humidity level of 88%. Stay prepared for some chilly and damp days!

January Temperature in Caldwell

In January in Caldwell, the average temperature is 1°C (34°F), with maximums reaching up to 15°C (59°F) and minimums plunging as low as -26°C (-15°F). Be prepared for a wide range of temperatures when traveling, so pack accordingly for both warmth and cold.

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

The chart illustrates January temperature patterns in Caldwell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caldwell, January typically has an average temperature of 1°C (34°F), with highs reaching up to 15°C (59°F) and lows dropping to around -26°C (-15°F).

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

January Precipitation in Caldwell

In Caldwell in January, the precipitation amount is 42 mm (1.7 in) spread over 9 days.

January Precipitation Trends in Caldwell

The chart displays monthly precipitation patterns in Caldwell, 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 Caldwell, January typically receives around 42 mm (1.7 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 Caldwell

In Caldwell in January humidity is 88%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel feel damp and brisk, where every breath carries a crisp bite, and the air clings to your skin, urging you to seek warmth and comfort.

January Average Humidity in Caldwell

This chart illustrates the average monthly humidity levels in Caldwell, 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 Caldwell is approximately 88%, 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 Caldwell

In Caldwell 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 Caldwell, you can check the information here.

Maximum UV Index Levels in Caldwell for January

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

Data source: Caldwell 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 Caldwell Compares to Other Months

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

This table compares monthly weather conditions in Caldwell, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	42 mm (1.7 inches)	88%	moderate
February Weather	3°C (37°F)	43 mm (1.7 inches)	89%	moderate
March Weather	8°C (47°F)	31 mm (1.2 inches)	85%	high
April Weather	12°C (54°F)	29 mm (1.2 inches)	79%	very high
May Weather	17°C (63°F)	28 mm (1.1 inches)	71%	very high
June Weather	22°C (73°F)	16 mm (0.6 inches)	71%	extreme
July Weather	28°C (82°F)	1 mm (0.0 inches)	66%	very high
August Weather	26°C (80°F)	5 mm (0.2 inches)	50%	very high
September Weather	20°C (68°F)	9 mm (0.4 inches)	48%	very high
October Weather	12°C (54°F)	18 mm (0.7 inches)	65%	moderate
November Weather	6°C (43°F)	28 mm (1.1 inches)	84%	moderate
December Weather	2°C (35°F)	33 mm (1.3 inches)	87%	low