Cannon Facts:

Eye color: blue
Hair color: red
Height: 5'7 (173 cm)

Patronus: Jack Russell Terrier
Jack Russell Terriers are sometimes described as: Vocal, Athletic, Energetic, Stubborn, Fearless, Intelligent

Wand(s):
12', Ash, Unicorn tail hair [from year 1-2]
14' Willow, Unicorn tail hair [year 3-7]
9 1/2', Chestnut, Dragon heartstring [used briefly in year 7, taken from Peter Petrigrew]

Birthday: March 1st, 1980

Skills: Wizard Chess, dueling, Defense Against the Dark Arts, Charms, Potions, Apparition, Transfiguration, Herbology, Divination, Non-verbal Magic, Astronomy, Quidditch, Care of Magical Creatures, Flying, tactical thinking, impersonation.

Life after Hogwarts:

Spouse: Hermione Granger
Children: Rose Granger-Weasley (2006)
Hugo Granger-Weasley (2007 or 2008)
Occupation: Auror (formally)
Weasley's Wizarding Wheezes (co-owner)

Popular Headcannons:

Bisexual!Ron
Slytherin!Ron
Hufflepuff!Ron
Traveling!Ron

Sources:

Harry Potter Wiki
Moodboard in media from tumblr blog nightlock