Washington Code > Chapter 51.08 > § 51.08.018 Washington Code 51.08.018 – “Average monthly wage.” Current as of: 2023 | Check for updates | Other versions For purposes of this title, the average monthly wage in the state shall be the average annual wage as determined under RCW 50.04.355 as now or hereafter amended divided by twelve. [ 1977 ex.s. c 323 § 3; 1971 ex.s. c 289 § 15.] NOTES: Severability—Effective date—1977 ex.s. c 323: See notes following RCW 51.04.040. Effective dates—Severability—1971 ex.s. c 289: See RCW 51.98.060 and 51.98.070. Ask an insurance law question, get an answer ASAP!Click here to chat with a lawyer about your rights. Previous sectionNext section Chapter 51.08 Contents