Cooling and Dehumidification Design Conditions for Washington

City Lat. Long. Elev. Std. Pres. Cooling DB / MCWB WB / MCDB DP / MCDB and HR Range of DB
0.4% 1% 2% 0.4% 1% 2% 0.4% 1% 2%
°N °W Meters kPa DB MCWB DB MCWB DB MCWB WB MCDB WB MCDB WB MCDB DP HR MCDB DP HR MCDB DP HR MCDB
Bellingham 48.80 122.53 48 100.75 26.2 18.5 24.7 17.8 23.1 16.7 19.2 25.8 18.1 23.7 17.1 22.2 16.2 11.6 22.8 15.5 11.1 21.2 14.8 10.6 19.5 9.3
Hanford 46.57 119.60 223 98.67 37.9 19.4 35.7 18.5 33.9 17.8 20.0 35.7 19.1 34.3 18.3 32.4 14.3 10.4 22.4 13.2 9.7 23.7 11.8 8.8 23.6 14.7
Olympia 46.97 122.90 61 100.59 30.6 19.3 28.3 18.2 26.3 17.5 19.8 29.5 18.8 27.3 17.8 25.4 16.1 11.5 22.7 15.3 10.9 21.9 14.6 10.4 20.8 14.0
Quillayute 47.95 124.55 62 100.58 26.4 16.8 23.3 15.9 20.8 15.0 17.7 24.4 16.6 21.9 15.7 19.7 15.3 10.9 18.3 14.7 10.5 17.4 14.1 10.1 16.7 8.6
Seattle, Int’l Airport 47.45 122.30 137 99.69 29.4 18.3 27.4 17.6 25.4 16.8 19.1 28.3 18.1 26.3 17.2 24.5 15.4 11.1 21.6 14.7 10.6 20.5 14.1 10.2 19.8 10.2
Spokane, Fairchild AFB 47.62 117.65 750 92.63 33.4 16.8 31.5 16.3 29.6 15.7 18.1 30.1 17.2 28.8 16.3 27.5 14.1 11.0 20.2 12.9 10.1 19.9 11.8 9.5 19.4 14.5
Stampede Pass 47.28 121.33 1209 87.62 25.5 13.9 23.6 13.2 21.4 12.5 15.0 23.1 14.1 21.8 13.2 20.3 11.8 10.0 17.3 10.8 9.3 16.0 10.0 8.8 14.4 8.9
Tacoma, McChord AFB 47.13 122.48 98 100.15 30.0 18.4 28.0 17.4 25.8 16.9 19.2 28.5 18.3 26.5 17.4 24.7 15.7 11.3 21.8 15.0 10.8 20.9 14.3 10.3 20.2 12.5
Walla Walla 46.10 118.28 367 96.99 36.9 19.0 34.9 18.4 33.1 17.7 20.2 33.6 19.2 32.7 18.4 31.1 15.7 11.7 23.3 14.6 10.8 22.5 13.7 10.2 22.4 15.0
Wenatchee 47.40 120.20 379 96.85 35.0 19.2 33.1 18.3 30.9 17.3 19.6 32.7 18.8 31.4 18.0 29.7 14.9 11.1 23.8 13.9 10.4 23.8 12.9 9.7 23.3 14.0
Yakima 46.57 120.53 325 97.48 35.1 18.6 33.2 17.9 31.2 17.2 19.7 32.4 18.7 31.4 17.8 29.9 15.1 11.2 23.8 13.8 10.2 23.2 12.6 9.5 22.4 17.3