February Weather in Fairfax, United States

Last updated: June 24, 2025

In February, the average temperature in Fairfax, United States hovers around 5°C (42°F). Expect to experience a wide range of temperatures, with minimums plunging to -15°C (6°F) and maximums soaring to 27°C (81°F). This month also brings 96 mm (3.8 in) of rain spread over approximately 11 days, contributing to a high average humidity of 83%. Prepare for a mix of chilly air and damp days!

February Temperature in Fairfax

In February in Fairfax, the average temperature is 5°C (42°F). The maximum can reach 27°C (81°F), while the minimum can dip as low as -15°C (6°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 (42°F), with highs reaching up to 27°C (81°F) and lows dropping to around -15°C (6°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 96 mm (3.8 in) spread over 11 days, resulting in a significant accumulation of rainfall.

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 96 mm (3.8 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

February Humidity in Fairfax

In Fairfax in February, humidity is 83%. With an average temperature of 5°C (42°F), this humidity feels like a heavy blanket wrapping around you, making even the simplest outdoor activities feel exhausting and uncomfortable for traveling.

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 83%, 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	3°C (38°F)	61 mm (2.4 inches)	84%	moderate
February Weather	5°C (42°F)	96 mm (3.8 inches)	83%	moderate
March Weather	8°C (47°F)	81 mm (3.2 inches)	83%	high
April Weather	14°C (57°F)	102 mm (4.0 inches)	81%	very high
May Weather	19°C (67°F)	125 mm (4.9 inches)	78%	very high
June Weather	24°C (76°F)	109 mm (4.3 inches)	79%	very high
July Weather	27°C (81°F)	119 mm (4.7 inches)	74%	very high
August Weather	25°C (78°F)	152 mm (6.0 inches)	72%	very high
September Weather	22°C (72°F)	96 mm (3.8 inches)	75%	very high
October Weather	17°C (63°F)	107 mm (4.2 inches)	81%	high
November Weather	9°C (48°F)	81 mm (3.2 inches)	85%	moderate
December Weather	5°C (42°F)	91 mm (3.6 inches)	84%	moderate