Table 5 - Temperature of dew point in degrees Fahrenheit

[Pressure = 23.00 inches]

Air
Temp
t

Vapor
Press.
e

Depression of wet-bulb thermometer (t-t')
32.5 33.0 33.5 34.0 34.5
76 0.896 -33
77 0.926 -15 -30
78 0.957 -6 -14 -28
79 0.989 0 -5 -13 -26
80 1.022 +6 +1 -4 -11 -23