The average technical salary at Chehalis was $43,865 , which is 46 percent lower than the average salary for this job in Washington, and 46 percent lower than the national average for this job . Technical salaries at Chehalis typically range from $36,253 to $47,796 (25th to 75th percentile). The highest reported technical salary was $64,552. There are 5 employees at Chehalis with the job title technical.