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 Feet psia DB MCWB DB MCWB DB MCWB WB MCDB WB MCDB WB MCDB DP HR MCDB DP HR MCDB DP HR MCDB
Bellingham 48.80 122.53 157 14.612 79 65 76 64 74 62 67 78 65 75 63 72 61 81 73 60 78 70 59 74 67 16.7
Hanford 46.57 119.60 732 14.311 100 67 96 65 93 64 68 96 66 94 65 90 58 73 72 56 68 75 53 62 74 26.5
Olympia 46.97 122.90 200 14.589 87 67 83 65 79 64 68 85 66 81 64 78 61 81 73 60 76 71 58 73 69 25.2
Quillayute 47.95 124.55 203 14.588 80 62 74 61 70 59 64 76 62 72 60 67 60 76 65 58 74 63 57 71 62 15.4
Seattle, Int’l Airport 47.45 122.30 449 14.458 85 65 81 64 78 62 66 83 65 79 63 76 60 78 71 59 74 69 57 71 68 18.3
Spokane, Fairchild AFB 47.62 117.65 2461 13.435 92 62 89 61 85 60 65 86 63 84 61 82 57 77 68 55 71 68 53 67 67 26.1
Stampede Pass 47.28 121.33 3967 12.708 78 57 74 56 71 54 59 74 57 71 56 69 53 70 63 51 65 61 50 62 58 16.0
Tacoma, McChord AFB 47.13 122.48 322 14.525 86 65 82 63 78 62 67 83 65 80 63 76 60 79 71 59 76 70 58 72 68 22.5
Walla Walla 46.10 118.28 1204 14.067 98 66 95 65 92 64 68 92 67 91 65 88 60 82 74 58 76 72 57 71 72 27.0
Wenatchee 47.40 120.20 1243 14.047 95 67 92 65 88 63 67 91 66 89 64 85 59 78 75 57 73 75 55 68 74 25.2
Yakima 46.57 120.53 1066 14.138 95 65 92 64 88 63 67 90 66 89 64 86 59 78 75 57 71 74 55 67 72 31.1