February Weather in Fairfax, United States

Last updated: June 24, 2025

In February, the average temperature in Fairfax, United States hovers around -2°C (29°F). However, be prepared for extremes, with temperatures dipping as low as -30°C (-22°F) and soaring to a maximum of 24°C (76°F). The month sees about 32 mm (1.2 in) of precipitation over 6 days, coupled with an average humidity of 80%. Whether you’re braving the cold or enjoying a sunny day, it's essential to be ready for the weather's unpredictability!

February Temperature in Fairfax

In February in Fairfax, the average temperature is -2°C (29°F). Maximum temperatures can reach 24°C (76°F), while minimums can drop as low as -30°C (-22°F). Travelers should be prepared for a wide range of temperatures, ensuring they have suitable clothing for both cold and warm conditions.

February Weather in Fairfax: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Fairfax, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fairfax, February typically has an average temperature of -2°C (29°F), with highs reaching up to 24°C (76°F) and lows dropping to around -30°C (-22°F).

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

February Precipitation in Fairfax

In Fairfax in February, the precipitation amount is 32 mm (1.2 in), which occurs over a span of 6 days.

February Precipitation Trends in Fairfax

The chart displays monthly precipitation patterns in Fairfax, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Fairfax, February typically receives around 32 mm (1.2 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

February Humidity in Fairfax

In Fairfax in February humidity is 80%. With an average temperature of -2°C (29°F), this humidity feels like a heavy, biting chill that seeps into your bones, making outdoor exploration uncomfortable and requiring extra layers to ward off both the cold and the dampness.

February Average Humidity in Fairfax

This chart illustrates the average monthly humidity levels in Fairfax, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Fairfax is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Fairfax

In Fairfax in February, 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 Fairfax.

Maximum UV Index Levels in Fairfax for February

The chart shows the monthly maximum UV Index (UVI) for Fairfax in February, 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 February, the maximum UV index in Fairfax typically reaches 5, which falls under the moderate exposure category.

Data source: Fairfax February 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 February Weather in Fairfax Compares to Other Months

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

This table compares monthly weather conditions in Fairfax, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	36 mm (1.4 inches)	76%	moderate
February Weather	-2°C (29°F)	32 mm (1.2 inches)	80%	moderate
March Weather	7°C (44°F)	92 mm (3.6 inches)	73%	high
April Weather	11°C (53°F)	84 mm (3.3 inches)	74%	very high
May Weather	18°C (65°F)	157 mm (6.2 inches)	78%	very high
June Weather	25°C (77°F)	119 mm (4.7 inches)	82%	extreme
July Weather	26°C (79°F)	112 mm (4.4 inches)	83%	very high
August Weather	24°C (76°F)	120 mm (4.7 inches)	80%	very high
September Weather	22°C (71°F)	85 mm (3.3 inches)	75%	very high
October Weather	13°C (55°F)	129 mm (5.1 inches)	75%	high
November Weather	6°C (42°F)	37 mm (1.5 inches)	82%	moderate
December Weather	1°C (35°F)	32 mm (1.3 inches)	83%	moderate