January Weather in Hayfork, United States

Last updated: June 24, 2025

In January, the average temperature in Hayfork, United States hovers around 4°C (39°F). Expect chilly conditions, with minimums dropping as low as -12°C (10°F) and highs reaching up to 17°C (63°F). The area experiences significant rainfall, with 171 mm (6.7 in) spread across 13 days. Coupled with an average humidity of 86%, it’s important to prepare for a damp and brisk month ahead!

January Temperature in Hayfork

In January in Hayfork, the average temperature is 4°C (39°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop as low as -12°C (10°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates January temperature patterns in Hayfork, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayfork, January typically has an average temperature of 4°C (39°F), with highs reaching up to 17°C (63°F) and lows dropping to around -12°C (10°F).

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

January Precipitation in Hayfork

In Hayfork in January, the precipitation amount is 171 mm (6.7 in) over a period of 13 days.

January Precipitation Trends in Hayfork

The chart displays monthly precipitation patterns in Hayfork, 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 Hayfork, January typically receives around 171 mm (6.7 inches) of precipitation spread over approximately 13 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 Hayfork

In Hayfork in January humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.

January Average Humidity in Hayfork

This chart illustrates the average monthly humidity levels in Hayfork, 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 Hayfork is approximately 86%, 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 Hayfork

In Hayfork 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 Hayfork, you can check the information here.

Maximum UV Index Levels in Hayfork for January

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

Data source: Hayfork 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 Hayfork Compares to Other Months

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

This table compares monthly weather conditions in Hayfork, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	171 mm (6.7 inches)	86%	moderate
February Weather	4°C (40°F)	165 mm (6.5 inches)	85%	moderate
March Weather	6°C (43°F)	133 mm (5.2 inches)	85%	high
April Weather	9°C (49°F)	77 mm (3.0 inches)	82%	very high
May Weather	13°C (56°F)	53 mm (2.1 inches)	81%	extreme
June Weather	18°C (65°F)	12 mm (0.5 inches)	79%	extreme
July Weather	23°C (73°F)	2 mm (0.1 inches)	70%	extreme
August Weather	22°C (72°F)	3 mm (0.1 inches)	60%	very high
September Weather	18°C (65°F)	13 mm (0.5 inches)	62%	very high
October Weather	12°C (55°F)	49 mm (1.9 inches)	72%	high
November Weather	7°C (46°F)	101 mm (4.0 inches)	87%	moderate
December Weather	3°C (38°F)	125 mm (4.9 inches)	86%	moderate