ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 24

Representative City
Miami, Fla.
Houston, Texas
Phoenix, Ariz.
Atlanta, Ga.
Las Vegas, Nev.
San Francisco, Calif.
Baltimore, Md.
Albuquerque, N.M.
Seattle, Wash.
Chicago, Ill.
Boulder, Colo.
Minneapolis, Minn.
Helena, Mont.
Duluth, Minn.
Fairbanks, Alaska
CZ
1A
2A
2B
3A
3B
3C
4A
4B
4C
5A
5B
6A
6B
7
8
HDD65 CDD50
113
1,167
912
2,640
1,975
3,779
4,491
3,956
4,705
6,190
10,865
7,477
7,504
9,286
13,577
9,942
7,630
9,229
5,391
7,249
1,835
3,936
4,271
2,068
3,122
369
2,882
2,092
1,674
1,087
Future Climatic Analog
Rio de Janeiro, Brazil
Jacksonville, Fla.
Kuwait City, Kuwait
Memphis, Tenn.
Phoenix, Ariz.
Lisbon, Portugal
Nashville, Tenn.
El Paso, Texas
San Francisco, Calif.
St. Louis, Mo.
Amarillo, Texas
Kansas City, Mo.
Salt Lake City, Utah
Toledo, Ohio
Winnipeg, Canada
Future
CZ
1A
2A
1B
3A
2B
3C
3A
3B
3C
4A
4B
4A
5B
5A
7
∆HDD65 ∆CDD50
-106
136
-201
244
-1,063
-2,083
-1,000
-1,656
-926
-1,518
-6,822
-2,450
-2,038
-3,381
-3,212
TABLE 1. Representative cities in continental-U.S. climate zones and their future climatic analogs.
Portland, Ore.
2% DB (°F)
2% MCWB (°F)
2% DB (°C)
2% MCWB (°C)
Jan.
54.9
50.7
12.7
10.4
San Antonio, Texas Jan.
2% DB (°F)
2% MCWB (°F)
2% DB (°C)
2% MCWB (°C)
Jacksonville, Fla., F
2% DB (°F)
2% MCWB (°F)
2% DB (°C)
2% MCWB (°C)
Orlando, Fla.
2% DB (°F)
2% MCWB (°F)
2% DB (°C)
2% MCWB (°C)
74.8
60.3
23.8
15.7
Ja Jan.
76.3
66.5
24.6
19.2
Jan.
79.8
68.1
26.6
20.1
Feb. Mar.
57.3
49.5
14.1
9.7
64.6
52.5
18.1
11.4
Feb. Mar.
79.3
61.6
26.3
16.4
82.6
64.8
28.1
18.2
FeFeb. Mar.r.
78.5
66.1
25.8
18.9
81.8
66.6
27.7
19.2
Feb. Mar.
82.1
68.3
27.8
20.2
84.1
68.6
28.9
20.3
Apr. May
71.7
57
22.1
13.9
81.2
61.9
27.3
16.6
Apr. May
88.1
68.9
31.2
20.5
93.2
73.2
34.0
22.9
Apr.r. Mayay
86
69.4
30.0
20.8
90.7
72.5
32.6
22.5
Apr. May
87.9
70.7
31.1
21.5
91.3
72.5
32.9
22.5
Jun.
84.5
64.6
29.2
18.1
Jun.
97.4
74
36.3
23.3
Jun.n.
93.9
76.5
34.4
24.7
Jun.
93.3
76.1
34.1
24.5
Jul.
91.3
68.4
32.9
20.2
Jul.
98.6
73.5
37.0
23.1
Jul.l.
94.3
77.8
34.6
25.4
Jul.
93.4
77
34.1
25.0
Aug.
90.2
67.6
32.3
19.8
Aug.
99.3
73.7
37.4
23.2
AuAug.
93.5
78
34.2
25.6
Aug.
93.2
77.3
34.0
25.2
Sep.
86.6
63.9
30.3
17.7
Sep.
96.1
72.9
35.6
22.7
Oct.
72.2
58
22.3
14.4
Oct.
89.2
71.7
31.8
22.1
Sep.p. Oct.Oc
90.1
75.8
32.3
24.3
Sep.
91
75.8
32.8
24.3
85.2
73.5
29.6
23.1
Oct.
87.7
74.5
30.9
23.6
Nov. Dec.
59.8
55.2
15.4
12.9
53.6
50.5
12.0
10.3
Nov. Dec.
80.7
66.9
27.1
19.4
75.6
62.5
24.2
16.9
Nov.v. Dec.c.
80.2
69.7
26.8
20.9
77.1
68
25.1
20.0
Nov. Dec.
82.9
71.4
28.3
21.9
80.6
69.6
27.0
20.9
TABLE 2. Monthly 2-percent cooling design conditions for Portland, Ore.; San Antonio, Texas; Jacksonville, Fla.;
and Orlando, Fla. (Note: DB = dry bulb, MCWB = mean coincident wet bulb.)
24
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ASHRAE Journal Supplement - AMCA InMotion - November 2022

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