Altitude Pressure Temperature Humidity (km) (kPa) (K) (%) 0 101.325 288.2 45.88 1 89.876 281.7 49.02 2 79.501 275.2 51.99 3 70.121 268.7 50.76 4 61.660 262.2 50.08 5 54.048 255.7 48.40 6 47.217 249.2 49.23 7 41.105 242.7 48.18 8 35.651 236.2 50.58 9 30.800 229.7 37.11 10 26.499 223.3 28.72 11 22.699 216.8 27.46 12 19.399 216.7 12.53 13 16.579 216.7 6.10 14 14.170 216.7 2.85 15 12.111 216.7 2.05 16 10.350 216.7 1.39 17 8.850 216.7 1.15 18 7.565 216.7 0.98 19 6.467 216.7 0.84 20 5.529 216.7 0.73 21 4.729 217.6 0.57 22 4.048 218.6 0.44 23 3.467 219.6 0.35 24 2.972 220.6 0.27 25 2.549 221.6 0.21 30 1.197 226.5 0.06 35 0.575 236.5 0.01 40 0.287 250.4 0.00 45 0.149 264.2 0.00 50 0.080 270.7 0.00