Table 2 - Temperature of dew point in degrees Fahrenheit

[Pressure = 29.00 inches]

Air
Temp
t

Vapor
Press.
e

Depression of wet-bulb thermometer (t-t')
8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0
26 0.136 -53
27 0.143 -32
28 0.150 -23 -45
29 0.157 -17 -29                            
30 0.164 -11 -20 -36
31 0.172 -7 -14 -24 -50
32 0.180 -4 -9 -16 -29
33 0.187 -1 -5 -11 -20 -36
34 0.195 +2 -2 -7 -14 -24 -50                    
35 0.203 5 +1 -3 -8 -16 -28
36 0.211 8 4 0 -4 -10 -19 -34
37 0.219 10 7 +3 -1 -6 -12 -22 -44
38 0.228 12 9 6 +3 -2 -7 -14 -25
39 0.237 14 12 9 6 +2 -3 -8 -16 -30              
40 0.247 16 14 11 8 5 +1 -4 -10 -18 -35
41 0.256 18 16 13 11 8 4 0 -5 -11 -21 -45
42 0.266 19 17 15 13 10 7 +4 -1 -6 -13 -24 -59
43 0.277 21 19 17 15 13 10 7 +3 -2 -7 -15 -28
44 0.287 23 21 19 17 15 12 9 6 +2 -2 -8 -17 -32      
45 0.298 24 22 20 19 17 14 11 8 6 +2 -3 -9 -18 -37
46 0.310 25 24 22 20 18 16 14 11 8 5 +1 -4 -11 -20 -44
47 0.322 27 25 24 22 20 18 16 13 11 8 4 0 -5 -12 -23 -53
48 0.334 28 27 25 23 22 20 18 15 13 10 7 +4 -1 -6 -13 -25
49 0.347 29 28 27 25 23 21 20 17 15 13 10 7 +3 -2 -7 -15