February Weather in Fairfax, United States

Last updated: June 24, 2025

In February, the average temperature in Fairfax, United States hovers around -5°C (23°F), with the possibility of plunging as low as -34°C (-28°F) and occasionally reaching a maximum of 22°C (71°F). The region experiences 56 mm (2.2 in) of precipitation spread over 8 days, resulting in an average humidity of 81%. Prepare for a cold, damp month!

February Temperature in Fairfax

In February in Fairfax, the average temperature is -5°C (23°F), with maximums reaching 22°C (71°F) and minimums dropping to as low as -34°C (-28°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both chilly and mild 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 -5°C (23°F), with highs reaching up to 22°C (71°F) and lows dropping to around -34°C (-28°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 56 mm (2.2 in) over the course of 8 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 56 mm (2.2 inches) of precipitation spread over approximately 8 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 81%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that penetrates deep into your bones, making outdoor activities uncomfortable and travel a challenge.

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 81%, 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	-6°C (21°F)	47 mm (1.9 inches)	81%	moderate
February Weather	-5°C (23°F)	56 mm (2.2 inches)	81%	moderate
March Weather	3°C (38°F)	73 mm (2.9 inches)	81%	high
April Weather	9°C (48°F)	81 mm (3.2 inches)	82%	very high
May Weather	16°C (62°F)	160 mm (6.3 inches)	78%	very high
June Weather	23°C (73°F)	134 mm (5.3 inches)	81%	extreme
July Weather	24°C (76°F)	85 mm (3.3 inches)	79%	very high
August Weather	22°C (73°F)	77 mm (3.0 inches)	77%	very high
September Weather	19°C (67°F)	127 mm (5.0 inches)	78%	very high
October Weather	11°C (53°F)	140 mm (5.5 inches)	78%	high
November Weather	3°C (38°F)	47 mm (1.9 inches)	87%	moderate
December Weather	-1°C (30°F)	44 mm (1.7 inches)	84%	moderate