CODES

ADOPTS WITH AMENDMENTS:

International Plumbing Code 2015 (IPC 2015)

TABLE D101
DEGREE DAY AND DESIGN TEMPERATURESa FOR CITIES IN THE UNITED STATES
STATE STATIONb HEATING
DEGREE DAYS
(yearly total)
DESIGN TEMPERATURES DEGREES NORTH
LATITUDEc
Winter
Summer
971/2%
Dry bulb 21/2%
Wet bulb 21/2%
AL Birmingham
Huntsville
Mobile
Montgomery
2,551
3,070
1,560
2,291
21
16
29
25
94
96
93
95
77
77
79
79
33°30'
34°40'
30°40'
32°20'
AK Anchorage
Fairbanks
Juneau
Nome
10,864
14,279
9,075
14,171
-18
-47
1
-27
68
78
70
62
59
62
59
59
61°10'
64°50'
58°20'
64°30'
AZ Flagstaff
Phoenix
Tuscon
Yuma
7,152
1,765
1,800
974
4
34
32
39
82
107
102
109
60
75
71
78
35°10'
33°30'
33°10'
32°40'
AR Fort Smith
Little Rock
Texarkana
3,292
3,219
2,533
17
20
23
98
96
96
79
79
79
35°20'
34°40'
33°30'
CA Fresno
Long Beach
Los Angeles
Los Angelesd
Oakland
Sacramento
San Diego
San Francisco
San Franciscod
2,611
1,803
2,061
1,349
2,870
2,502
1,458
3,015
3,001
30
43
43
40
36
32
44
38
40
100
80
80
89
80
98
80
77
71
71
69
69
71
64
71
70
64
62
36°50'
33°50'
34°00'
34°00'
37°40'
38°30'
32°40'
37°40'
37°50'
CO Alamosa
Colorado Springs
Denver
Grand Junction
Pueblo
8,529
6,423
6,283
5,641
5,462
-16
2
1
7
0
82
88
91
94
95
61
62
63
63
66
37°30'
38°50'
39°50'
39°10'
38°20'
CT Bridgeport
Hartford
New Haven
5,617
6,235
5,897
9
7
7
84
88
84
74
75
75
41°10'
41°50'
41°20'
DE Wilmington 4,930 14 89 76 39°40'
DC Washington 4,224 17 91 77 38°50'
FL Daytona
Fort Myers
Jacksonville
Key West
Miami
Orlando
Pensacola
Tallahassee
Tampa
West Palm Beach
879
442
1,239
108
214
766
1,463
1,485
683
253
35
44
32
57
47
38
29
30
40
45
90
92
94
90
90
93
93
92
91
91
79
79
79
79
79
78
79
78
79
79
29°10'
26°40'
30°30'
24°30'
25°50'
28°30'
30°30'
30°20'
28°00'
26°40'
GA Athens
Atlanta
Augusta
Columbus
Macon
Rome
Savannah
2,929
2,961
2,397
2,383
2,136
3,326
1,819
22
22
23
24
25
22
27
92
92
95
93
93
93
93
77
76
79
78
78
78
79
34°00'
33°40'
33°20'
32°30'
32°40'
34°20'
32°10'
HI Hilo
Honolulu
0
0
62
63
83
86
74
75
19°40'
21°20'
ID Boise
Lewiston
Pocatello
5,809
5,542
7,033
10
6
-1
94
93
91
66
66
63
43°30'
46°20'
43°00'
IL Chicago (Midway)
Chicago (O'Hare)
Chicagod
Moline
Peoria
Rockford
Springfield
6,155
6,639
5,882
6,408
6,025
6,830
5,429
0
-4
2
-4
-4
-4
2
91
89
91
91
89
89
92
75
76
77
77
76
76
77
41°50'
42°00'
41°50'
41°30'
40°40'
42°10'
39°50'
IN Evansville
Fort Wayne
Indianapolis
South Bend
4,435
6,205
5,699
6,439
9
1
2
1
93
89
90
89
78
75
76
75
38°00'
41°00'
39°40'
41°40'
IA Burlington
Des Moines
Dubuque
Sioux City
Waterloo
6,114
6,588
7,376
6,951
7,320
-3
-5
-7
-7
-10
91
91
88
92
89
77
77
75
77
77
40°50'
41°30'
42°20'
42°20'
42°30'
KS Dodge City
Goodland
Topeka
Wichita
4,986
6,141
5,182
4,620
5
0
4
7
97
96
96
98
73
70
78
76
37°50'
39°20'
39°00'
37°40'
KY Covington
Lexington
Louisville
5,265
4,683
4,660
6
8
10
90
91
93
75
76
77
39°00'
38°00'
38°10'
LA Alexandria
Baton Rouge
Lake Charles
New Orleans
Shreveport
1,921
1,560
1,459
1,385
2,184
27
29
31
33
25
94
93
93
92
96
79
80
79
80
79
31°20'
30°30'
30°10'
30°00'
32°30'
ME Caribou
Portland
9,767
7,511
-13
-1
81
84
69
72
46°50'
43°40'
MD Baltimore
Baltimored
Frederick
4,654
4,111
5,087
13
17
12
91
89
91
77
78
77
39°10'
39°20'
39°20'
MA Boston
Pittsfield
Worcester
5,634
7,578
6,969
9
-3
4
88
84
84
74
72
72
42°20'
42°30'
42°20'
MI Alpena
Detroit (City)
Escanabad
Flint
Grand Rapids
Lansing
Marquetted
Muskegon
Sault Ste. Marie
8,506
6,232
8,481
7,377
6,894
6,909
8,393
6,696
9,048
-6
6
-7
1
5
1
-8
6
-8
85
88
83
87
88
87
81
84
81
72
74
71
74
74
74
70
73
70
45°00'
42°20'
45°40'
43°00'
42°50'
42°50'
46°30'
43°10'
46°30'
MN Duluth
Minneapolis
Rochester
10,000
8,382
8,295
-16
-12
-12
82
89
87
70
5
75
46°50'
44°50'
44°00'
MS Jackson
Meridian
Vicksburgd
2,239
2,289
2,041
25
23
26
95
95
95
78
79
80
32°20'
32°20'
32°20'
MO Columbia
Kansas City
St. Joseph
St. Louis
St. Louisd
Springfield
5,046
4,711
5,484
4,900
4,484
4,900
4
6
2
6
8
9
94
96
93
94
94
93
77
77
79
77
77
77
39°00'
39°10'
39°50'
38°50'
38°40'
37°10'
MT Billings
Great Falls
Helena
Missoula
7,049
7,750
8,129
8,125
-10
-15
-16
-6
91
88
88
88
66
62
62
63
45°50'
47°30'
46°40'
46°50'
NE Grand Island
Lincolnd
Norfolk
North Platte
Omaha
Scottsbluff
6,530
5,864
6,979
6,684
6,612
6,673
-3
-2
-4
-4
-3
-3
94
95
93
94
91
92
74
77
77
72
77
68
41°00'
40°50'
42°00'
41°10'
41°20'
41°50'
NV Elko
Ely
Las Vegas
Reno
Winnemucca
7,433
7,733
2,709
6,332
6,761
-2
-2
28
10
3
92
87
106
92
94
62
59
70
62
62
40°50'
39°10'
36°10'
39°30'
40°50'
NH Concord 7,383 -3 87 73 43°10'
NJ Atlantic City
Newark
Trentond
4,812
4,589
4,980
13
14
14
89
91
88
77
76
76
39°30'
40°40'
40°10'
NM Albuquerque
Raton
Roswell
Silver City
4,348
6,228
3,793
3,705
16
1
18
10
94
89
98
94
65
64
70
64
35°00'
36°50'
33°20'
32°40'
NY Albany
Albanyd
Binghamton
Buffalo
NY (Central Park)d
NY (Kennedy)
NY (LaGuardia)
Rochester
Schenectadyd
Syracuse
6,875
6,201
7,286
7,062
4,871
5,219
4,811
6,748
6,650
6,756
-1
1
1
6
15
15
15
5
1
2
88
88
83
85
89
87
89
88
87
87
74
74
72
73
75
75
75
73
74
73
42°50'
42°50'
42°10'
43°00'
40°50'
40°40'
40°50'
43°10'
42°50'
43°10'
NC Charlotte
Greensboro
Raleigh
Winston-Salem
3,181
3,805
3,393
3,595
22
18
20
20
93
91
92
91
76
76
77
75
35°10'
36°10'
35°50'
36°10'
ND Bismarck
Devils Laked
Fargo
Williston
8,851
9,901
9,226
9,243
-19
-21
-18
-21
91
88
89
88
71
71
74
70
46°50'
48°10'
46°50'
48°10'
OH Akron-Cant on
Cincinnatid
Cleveland
Columbus
Dayton
Mansfield
Sanduskyd
Toledo
Youngstown
6,037
4,410
6,351
5,660
5,622
6,403
5,796
6,494
6,417
6
6
5
5
4
5
6
1
4
86
90
88
90
89
87
91
88
86
73
75
74
75
75
74
74
75
73
41°00'
39°10'
41°20'
40°00'
39°50'
40°50'
41°30'
41°40'
41°20'
OK Oklahoma City
Tulsa
3,725
3,860
13
13
97
98
77
78
35°20'
36°10'
OR Eugene
Medford
Portland
Portlandd
Salem
4,726
5,008
4,635
4,109
4,754
22
23
23
24
23
89
94
85
86
88
67
68
67
67
68
44°10'
42°20'
45°40'
45°30'
45°00'
PA Allentown
Erie
Harrisburg
Philadelphia
Pittsburgh
Pittsburghd
Readingd
Scranton
William sport
5,810
6,451
5,251
5,144
5,987
5,053
4,945
6,254
5,934
9
9
11
14
5
7
13
5
7
88
85
91
90
86
88
89
87
89
75
74
76
76
73
73
75
73
74
40°40'
42°10'
40°10'
39°50'
40°30'
40°30'
40°20'
41°20'
41°10'
RI Providence 5,954 9 86 74 41°40'
SC Charleston
Charlestond
Columbia
2,033
1,794
2,484
27
28
24
91
92
95
80
80
78
32°50'
32°50'
34°00'
SD Huron
Rapid City
Sioux Falls
8,223
7,345
7,839
-14
-7
-11
93
92
91
75
69
75
44°30'
44°00'
43°40'
TN Bristol
Chattanooga
Knoxville
Memphis
Nashville
4,143
3,254
3,494
3,232
3,578
14
18
19
18
14
89
93
92
95
94
75
77
76
79
77
36°30'
35°00'
35°50'
35°00'
36°10'
TX Abilene
Austin
Dallas
El Paso
Houston
Midland
San Angelo
San Antonio
Waco
Wichita Falls
2,624
1,711
2,363
2,700
1,396
2,591
2,255
1,546
2,030
2,832
20
28
22
24
32
21
22
30
26
18
99
98
100
98
94
98
99
97
99
101
74
77
78
68
79
72
74
76
78
76
32°30'
30°20'
32°50'
31°50'
29°40'
32°00'
31°20'
29°30'
31°40'
34°00'
UT Salt Lake City 6,052 8 95 65 40°50'
VT Burlington 8,269 -7 85 72 44°30'
VA Lynchburg
Norfolk
Richmond
Roanoke
4,166
3,421
3,865
4,150
16
22
17
16
90
91
92
91
76
78
78
74
37°20'
36°50'
37°30'
37°20'
WA Olympia
Seattle -Tacoma
Seattled
Spokane
5,236
5,145
4,424
6,655
22
26
27
2
83
80
82
90
66
64
67
64
47°30'
47°30'
47°30'
47°40'
WV Charleston
Elkins
Huntington
Parkersburgd
4,476
5,675
4,446
4,754
11
6
10
11
90
84
91
90
75
72
77
76
38°20'
38°50'
38°20'
39°20'
WI Green Bay
La Crosse
Madison
Milwaukee
8,029
7,589
7,863
7,635
-9
-9
-7
-4
85
88
88
87
74
75
75
74
44°30'
43°50'
43°10'
43°00'
WY Casper
Cheyenne
Lander
Sheridan
7,410
7,381
7,870
7,680
-5
-1
-11
-8
90
86
88
91
61
62
63
65
42°50'
41°10'
42°50'
44°50'
  1. All data were extracted from the 1985 ASHRAE Handbook, Fundamentals Volume.
  2. Design data developed from airport temperature observations unless noted.
  3. Latitude is given to the nearest 10 minutes. For example, the latitude for Miami, Florida, is given as 25°50', or 25 degrees 50 minutes.
  4. Design data developed from office locations within an urban area, not from airport temperature observations.
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