PDFWAC 51-11R-60100

Table RC-1—Outdoor design temperatures for Washington.

TABLE RC-1
OUTDOOR DESIGN TEMPERATURES
Location
Outdoor
Design Temp Heating (°F)
Outdoor
Design Temp Cooling (°F)
Aberdeen 20NNE
25
83
Anacortes
24
72
Anatone
-4
89
Auburn
25
84
Battleground
19
91
Bellevue
24
83
Bellingham 2N
19
78
Blaine
17
73
Bremerton
29
83
Burlington
19
77
Chehalis
21
87
Chelan
10
89
Cheney
4
94
Chesaw
-11
81
Clarkston
10
94
Cle Elum
1
91
Colfax 1NW
2
94
Colville AP
-2
92
Concrete
19
83
Connell 4NNW
6
100
Cougar 5E
25
93
Dallesport AP
14
99
Darrington RS
13
85
Davenport
5
92
Edmonds
24
82
Ellensburg AP
2
90
Elma
24
88
Ephrata AP
7
97
Everett Paine AFB
21
79
Forks 1E
23
81
Glacier RS
13
82
Glenoma (Kosmos)
18
89
Goldendale
7
94
Grays River Hatchery
24
86
Greenwater
1.4
84
Grotto
21
84
Hoquiam AP
26
79
Inchelium 2NW
0
92
John Day Dam
19
100
Kent
21
85
Kirkland
17
83
La Grande
23
88
Leavenworth
-3
93
Little Goose Dam
22
101
Long Beach 3NNE
25
77
Longview
24
87
Lower Granite Dam
14
98
Lower Monument Dam
18
103
Marysville
23
79
Metaline Falls
-1
89
Methow 2W
1
89
Nespelem 2S
-4
93
Newhalem
19
89
Newport
-5
92
Northport
2
92
Oak Harbor
16
74
Odessa
7
100
Olga 2SE
24
71
Olympia AP
17
85
Omak 2NW
3
90
Oroville
5
93
Othello
9
98
Packwood
16
90
Plain
-3
89
Pleasant View
16
98
Pomeroy
3
95
Port Angeles
28
75
Port Townsend
25
76
Prosser
12
97
Puyallup
19
86
Quilcene 2SW
23
83
Quinault RS
25
84
Rainier, Longmire
15
85
Paradise RS
8
71
Raymond
28
81
Redmond
17
83
Republic
-9
87
Richland
11
101
Ritzville
6
99
Satus Pass
10
90
Seattle: SeaTac AP
24
83
Sedro Woolley 1E
19
78
Sequim
23
78
Shelton
23
85
Smyrna
8
102
Snohomish
21
81
Snoqualmie Pass
6
80
Spokane AP
4
92
Spokane CO
10
96
Stampede Pass
7
76
Stehekin 3NW
12
85
Stevens Pass
6
77
Tacoma CO
29
82
Tatoosh Island
31
63
Toledo AP
17
84
Vancouver
22
88
Vashon Island
28
78
Walla Walla AP
6
96
Waterville
1
88
Wellpinit
1
93
Wenatchee CO
10
92
Whidbey Island
11
71
Willapa Harbor
26
81
Wilson Creek
3
96
Winthrop 1WSW
-12
91
Yakima AP
11
94
ABBREVIATIONS:
AFB Air Force Base
AP Airport
CO City Office
RS Ranger Station
Typical: "4(miles)NE"
[Statutory Authority: RCW 19.27A.020, 19.27A.045, 19.27A.160 and chapter 19.27 RCW. WSR 20-01-047, § 51-11R-60100, filed 12/9/19, effective 7/1/20. Statutory Authority: RCW 19.27A.020, 19.27A.045 and chapters 19.27 and 34.05 RCW. WSR 13-04-055, § 51-11R-60100, filed 2/1/13, effective 7/1/13.]