Weather & Climate at Marine Corps Base Quantico

Triangle, VA

Summary of the weather and climate in Triangle, VA:

The average high is 66.6°F and the average low is 47.9°F.
The hottest month is July with a high of 87.5°F.
The coldest month is January with a low of 27°F.
Annual rainfall is 41.11 inches; the rainiest month is September (3.88 in).
Annual snowfall is 10.2 inches; the snowiest month is January (4 in).

Source: NOAA climate normals.

Temperatures through the year

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Bars span each month's average low to average high (20°F – 90°F scale).

Monthly averages

Month	High (°F)	Low (°F)	Rain (in)	Snow (in)
January	44.2	27	2.88	4
February	47.3	29.5	2.82	2.5
March	56.1	36.3	3.74	1.3
April	67	45.9	3.25	0
May	75.1	55.1	3.77	0
June	83.7	64.8	3.32	0
July	87.5	69.3	3.82	0
August	85.7	68.1	3.36	0
September	78.9	60.5	3.88	0
October	68.3	48.3	3.27	0
November	57.8	39	3.81	0.5
December	47.2	30.5	3.19	1.9