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 AIR TEMPERATURE: DEW POINT SPREAD TABLE
(All figures are in degrees Fahrenheit at 30-inch pressure.)
DIFFERENCE
AIR TEMPERATURE SHOWN BY DRY-BULB THERMOMETER
DRY-BULB
MINUS
WET
35
40
45
50
55
60
65
70
75
80
85
90
95
BULB
1
2
2
2
2
2
2
2
1
1
1
1
1
1
2
5
5
4
4
4
3
3
3
3
3
3
3
2
3
7
7
7
6
5
5
5
4
4
4
4
4
4
4
10
10
9
8
7
7
6
6
6
6
5
5
5
5
14
12
11
10
10
9
8
8
7
7
7
7
6
6
18
15
14
13
12
11
10
9
9
8
8
8
8
7
22
19
17
16
14
13
12
11
11
10
10
9
9
8
28
22
20
18
17
15
14
13
12
12
11
11
10
9
35
27
23
21
19
17
16
15
14
13
13
12
12
10
33
27
24
22
20
18
17
16
15
14
14
13
11
40
32
28
25
22
20
19
18
17
16
15
15
12
38
32
28
25
23
21
20
18
17
16
16
13
45
37
31
28
25
23
21
20
19
18
17
14
42
35
31
28
26
24
22
21
20
19
15
50
40
35
31
28
26
24
23
21
21
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