Best time to travel to Fairfax County

Discover the ideal time to visit Fairfax County

Planning a trip to Fairfax County? Based on weather conditions, the best time to visit is during April, May and September, see the table bellow for more details.

On this page, you will find detailed climate data, graphs, and insights about Fairfax County to help you plan your trip and choose the most optimal time to visit.

Fairfax County Monthly Climate Overview

Click on a month for in-depth weather statistics and trends

Month	Temperatures	Total Rain	Total Snow	Rainy Days	Snow Days	Dry Days
January	2°/-4°	219 mm	103 cm	3 days	3 days	25 days
February	4°/-3°	102 mm	30 cm	3 days	3 days	22 days
March	15°/5°	178 mm	21 cm	6 days	1 days	24 days
April	21°/10°	52 mm	0 cm	7 days	0 days	23 days
May	22°/12°	107 mm	0 cm	15 days	0 days	16 days
June	31°/19°	143 mm	0 cm	13 days	0 days	17 days
July	32°/22°	316 mm	0 cm	15 days	0 days	16 days
August	30°/19°	186 mm	0 cm	12 days	0 days	19 days
September	27°/17°	191 mm	0 cm	11 days	0 days	19 days
October	19°/10°	335 mm	0 cm	10 days	0 days	21 days
November	12°/4°	151 mm	0 cm	9 days	0 days	21 days
December	4°/-2°	169 mm	20 cm	4 days	3 days	24 days