The Dew Point Table

Air temp. (F)

Depression of the wet-bulb thermometer

1

2

 3 4 6 8 10 12 14 16 18 20 25 30
0 -7 -20
5 -1 -9 -24
10 5 -2 -10 -27
15 11 6 0 -9
20 16 12 8 2 -21
25 22 19 15 10 -3 -15
30 27 25 21 18 8 -7
35 33 30 28 25 17 7 -11
40 38 35 33 30 25 18 7 -14
45 43 41 38 36 31 25 18 7 -14
50 48 46 44 42 37 32 26 18 8 -13
55 53 51 50 48 43 38 33 27 20 9 -12
60 58 57 55 53 49 45 40 35 29 21 11 -8
65 63 62 60 59 55 51 47 42 37 31 24 14
70 69 67 65 64 61 57 53 49 44 39 33 26 -11
75 74 72 71 69 66 63 59 55 51 47 42 36 15
80 79 77 76 74 72 68 65 62 58 54 50 44 28 -7
85 84 82 81 80 77 74 71 68 64 61 57 52 39 19
90 89 87 86 85 82 79 76 73 70 67 63 59 48 32
95 94 93 91 90 87 85 82 79 76 73 70 66 56 43
100 99 98 96 95 93 90 87 85 82 79 76 72 63 52

Go to the Relative Humidity Table

Go to the Water Vapor Capacity Table

Return to the Atmospheric Moisture Lecture Notes
Return to the Atmospheric Moisture Exercise
Return to the Moisture-Lapse Rate Review Exercise
Return to the Moisture Review Notes