An event every 2 months that begins at 12:00am on day Fourth of the month, repeating until August 31, 2018
If you have fine, loose, sandy soil carrots will probably do fine with a first sowing about mid-March. If your ground is heavier and holds water I’d wait several more weeks until late March or early April when it’s drier and you can rake the first several inches of soil to a nice fluffy consistency without clods before sowing.
If you want to have a consistent supply of garden carrots, try for 3 sowings, each about 2 months apart, starting in late-March and ending in late-July. Your last sowing will be your fall and winter crop of carrots.
How To Grow Carrots In The Pacific Northwest (Coming Soon!)