MLS Cities Average Annual Precipitation

Annual Precipitation (Inches) - City
49.9   New York City, NY
49.8   Houston, Texas      
47.2   Vancouver, BC   (Turf)      
43.8   Boston, Massachusetts  (Turf)
43.5   Portland, Oregon (Turf)
41.5   Philadelphia, PA
39.7   Washington, DC      
39.3   Columbus, Ohio      
39.1   Kansas City, Missouri
38.5   Montreal, Quebec      
37.7   Seattle, Washington (Turf)
36.9   Chicago, Illinois
37.6   Dallas, Texas      
31.2   Toronto, Ontario      
16.1   Salt Lake City, Utah
15.8   San Jose, California
15.6   Denver, Colorado
12.8   Los Angeles, California

Wet Days - City
166  Vancouver, BC (Turf)        
164 Portland, Oregon (Turf)
163  Montreal, Quebec      
149 Seattle, Washington  (Turf)
146  Toronto, Ontario      
139 Columbus, Ohio      
126 Boston, Massachusetts (Turf)
124 Chicago, Illinois
122 New York, New York
118 Philadelphia, PA
114 Washington, DC      
104 Houston, Texas      
96 Salt Lake City, Utah
91 Kansas City, Missouri
87 Denver, Colorado
81 Dallas, Texas      
62 San Jose, California
36 Los Angeles, California

Sources:

Current Results Research News and Science Facts

Statistics Canada