January Weather in Hamden, United States

Last updated: June 24, 2025

In January, the average temperature in Hamden, United States hovers around 1°C (34°F). However, be prepared for extremes, as temperatures can plummet to a chilling -21°C (-6°F) or rise to a pleasant 22°C (71°F). This month brings about 86 mm (3.4 in) of precipitation spread over 10 days, and humidity levels often reach a high 88%, creating a uniquely crisp atmosphere.

January Temperature in Hamden

In January in Hamden, the average temperature is 1°C (34°F). Maximums can reach 22°C (71°F), and minimums can drop as low as -21°C (-6°F). Travelers should be prepared for a wide range of weather conditions and pack accordingly.

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

The chart illustrates January temperature patterns in Hamden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hamden, January typically has an average temperature of 1°C (34°F), with highs reaching up to 22°C (71°F) and lows dropping to around -21°C (-6°F).

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

January Precipitation in Hamden

In Hamden in January, the precipitation amount is 86 mm (3.4 in) over the course of 10 days.

January Precipitation Trends in Hamden

The chart displays monthly precipitation patterns in Hamden, 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 Hamden, January typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 10 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 Hamden

In Hamden 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 Hamden

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

In Hamden 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 Hamden, you can check the information here.

Maximum UV Index Levels in Hamden for January

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

Data source: Hamden 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 Hamden Compares to Other Months

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

This table compares monthly weather conditions in Hamden, 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)	86 mm (3.4 inches)	88%	moderate
February Weather	3°C (38°F)	122 mm (4.8 inches)	88%	moderate
March Weather	7°C (45°F)	120 mm (4.7 inches)	87%	high
April Weather	12°C (54°F)	135 mm (5.3 inches)	85%	very high
May Weather	18°C (65°F)	133 mm (5.2 inches)	81%	very high
June Weather	22°C (72°F)	142 mm (5.6 inches)	82%	very high
July Weather	25°C (77°F)	112 mm (4.4 inches)	81%	very high
August Weather	24°C (75°F)	113 mm (4.4 inches)	73%	very high
September Weather	21°C (70°F)	99 mm (3.9 inches)	73%	very high
October Weather	15°C (59°F)	109 mm (4.3 inches)	78%	high
November Weather	7°C (44°F)	86 mm (3.4 inches)	89%	moderate
December Weather	4°C (39°F)	116 mm (4.6 inches)	87%	moderate