deg.C. deg.F. +38 +100 +35 +95 +30 +86 +25 +77 +20 +68 +15 +59 +10 +50 +5 +41 0 +32 -5 +23 -10 +14 -15 +5 -18 0 -20 -4 -25 -13 -30 -22 -35 -31 -40 -40 -45 -49 -50 -58 -55 -67 -60 -76 -65 -85 -70 -94 -75 -103 -79 -110