Wash. Admin. Code § 51-11C-80100 - Table C-1 - Outdoor design temperatures for Washington

Table C-1 Outdoor Design Temperatures

Outdoor Design Temp. Heating

Outdoor Design Temp. Cooling

Location

(°F)

(°F)

Aberdeen 20 NNE

25

83

Anacortes

24

72

Anatone

-4

89

Auburn

25

84

Battleground

19

91

Bellevue

24

83

Bellingham 2 N

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 1 NW

2

94

Colville AP

-2

92

Concrete

19

83

Connell 4 NNW

6

100

Cougar 5 E

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 1 E

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 2 NW

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 3 NNE

25

77

Longview

24

87

Lower Granite Dam

14

98

Lower Monument Dam

18

103

Marysville

23

79

Metaline Falls

-1

89

Methow 2 W

1

89

Nespelem 2 S

-4

93

Newhalem

19

89

Newport

-5

92

Northport

2

92

Oak Harbor

16

74

Odessa

7

100

Olga 2 SE

24

71

Olympia, AP

17

85

Omak 2 NW

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 2 SW

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: Sea-Tac AP

24

83

Sedro Woolley 1 E

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 3 NW

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 1 WSW

-12

91

Yakima AP

11

94

ABBREVIATIONS:

AFB Air Force Base

AP Airport

CO City Office

RS Ranger Station

Typical: "4(miles)NE"

Notes

Wash. Admin. Code § 51-11C-80100

Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. 13-04-056, § 51-11C-80100, filed 2/1/13, effective 7/1/13.

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.