TABLE OF TEMPERATURES Depths Temperature Degrees Metres Fathoms Centigrade Fahrenheit Surface ... +1.02 33.83 2 1 -1.32 29.62 20 10 -1.33 29.61 40 21 -1.50 29.3 60 32 -1.50 29.3 80 43 -1.50 29.3 100 54 -1.40 29.48 120 65 -1.24 29.77 140 76 -0.97 30.254 160 87 -0.58 30.96 180 98 -0.31 31.44 200 109 -0.03 31.95 220 120 +0.19 32.34 240 131 +0.20 32.36 260 142 +0.34 32.61 280 153 +0.42 32.76 300 164 +0.34 32.61 350 191 +0.44 32.79 400 218 +0.35 32.63 450 273 +0.34 32.61 600 328 +0.26 32.47 700 382 +0.14 32.25 800 437 +0.07 32.126 900 492 -0.04 31.928 1000 546 -0.10 31.82 1200 656 -0.28 31.496 1400 765 -0.34 31.39 1600 874 -0.46 31.17 1800 984 -0.60 30.92 2000 1093 -0.66 30.81 2600 1421 -0.74 30.67 2900 1585 -0.76 30.63 3000 1640 -0.73 30.76 3700 2023 -0.65 30.83 3800 2077 -0.64 30.85 325 177 +0.49 32.88 +0.85 33.53 +0.76 33.37 +0.78 33.40 +0.62 33.12