January Weather in Forest Hill, United States

Last updated: June 24, 2025

In January, the average temperature in Forest Hill, United States hovers around 11°C (52°F), creating a mild climate. However, be prepared for a temperature range that can dip as low as -9°C (15°F) and soar up to 28°C (83°F). Expect 111 mm (4.4 in) of precipitation over about 9 days, contributing to an average humidity of 81%. Dress accordingly to enjoy all that this month has to offer!

January Temperature in Forest Hill

In January in Forest Hill, the average temperature is 11°C (52°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -9°C (15°F). Travelers should be prepared for a wide range of temperatures, from warm days to potentially cold nights.

January Weather in Forest Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Forest Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Forest Hill, January typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (83°F) and lows dropping to around -9°C (15°F).

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

January Precipitation in Forest Hill

In Forest Hill in January, the precipitation amount is 111 mm (4.4 in) over the course of 9 days.

January Precipitation Trends in Forest Hill

The chart displays monthly precipitation patterns in Forest Hill, 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 Forest Hill, January typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 9 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 Forest Hill

In Forest Hill in January humidity is 81%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor excursions quite uncomfortable, causing a muggy heaviness that dampens clothes and leaves travelers longing for dryer weather.

January Average Humidity in Forest Hill

This chart illustrates the average monthly humidity levels in Forest Hill, 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 Forest Hill is approximately 81%, 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 Forest Hill

In Forest Hill in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Forest Hill.

Maximum UV Index Levels in Forest Hill for January

The chart shows the monthly maximum UV Index (UVI) for Forest Hill 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 Forest Hill typically reaches 5, which falls under the moderate exposure category.

Data source: Forest Hill 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 Forest Hill Compares to Other Months

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

This table compares monthly weather conditions in Forest Hill, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	111 mm (4.4 inches)	81%	moderate
February Weather	13°C (56°F)	122 mm (4.8 inches)	81%	high
March Weather	17°C (64°F)	102 mm (4.0 inches)	79%	very high
April Weather	19°C (67°F)	167 mm (6.6 inches)	80%	extreme
May Weather	24°C (76°F)	198 mm (7.8 inches)	81%	extreme
June Weather	27°C (80°F)	132 mm (5.2 inches)	76%	extreme
July Weather	28°C (82°F)	158 mm (6.2 inches)	73%	extreme
August Weather	28°C (82°F)	148 mm (5.8 inches)	71%	extreme
September Weather	26°C (79°F)	134 mm (5.3 inches)	72%	very high
October Weather	21°C (71°F)	121 mm (4.8 inches)	73%	very high
November Weather	14°C (58°F)	69 mm (2.7 inches)	83%	high
December Weather	13°C (55°F)	120 mm (4.7 inches)	88%	moderate