Stratus Average Base Height (meters) September, October, November (1954 - 1997) Night, Ship Observations Only Global Average: 402 Zonal Averages 32 zones Lat.N Average 87.5 263 82.5 301 77.5 337 72.5 401 67.5 433 62.5 413 57.5 409 52.5 403 47.5 392 42.5 400 37.5 413 32.5 428 27.5 420 22.5 414 17.5 411 12.5 407 7.5 388 2.5 390 -2.5 416 -7.5 423 -12.5 407 -17.5 417 -22.5 432 -27.5 404 -32.5 405 -37.5 396 -42.5 389 -47.5 424 -52.5 399 -57.5 425 -62.5 357 -77.5 434 Grid Box Averages 748 filled boxes Box # Lat.N Lon.E Average 1 87.5 0.0 263 2 82.5 20.0 391 5 82.5 140.0 226 6 82.5 180.0 239 7 82.5 220.0 252 11 77.5 10.0 476 12 77.5 30.0 470 13 77.5 50.0 469 15 77.5 90.0 379 16 77.5 110.0 381 17 77.5 130.0 228 18 77.5 150.0 180 19 77.5 170.0 278 20 77.5 190.0 291 21 77.5 210.0 411 23 77.5 250.0 281 24 77.5 270.0 316 25 77.5 290.0 488 28 77.5 350.0 319 29 72.5 10.0 482 30 72.5 30.0 486 31 72.5 50.0 498 32 72.5 70.0 461 37 72.5 170.0 314 38 72.5 190.0 329 39 72.5 210.0 363 41 72.5 250.0 334 42 72.5 270.0 316 43 72.5 290.0 474 44 72.5 310.0 462 46 72.5 350.0 452 47 67.5 5.0 357 48 67.5 15.0 457 50 67.5 35.0 526 51 67.5 45.0 519 52 67.5 55.0 460 65 67.5 185.0 371 66 67.5 195.0 438 72 67.5 255.0 369 74 67.5 275.0 317 76 67.5 295.0 365 77 67.5 305.0 409 79 67.5 325.0 467 81 67.5 345.0 492 82 67.5 355.0 514 83 62.5 5.0 404 99 62.5 165.0 384 100 62.5 175.0 434 101 62.5 185.0 394 102 62.5 195.0 459 104 62.5 215.0 394 109 62.5 265.0 469 110 62.5 275.0 402 111 62.5 285.0 370 112 62.5 295.0 358 113 62.5 305.0 391 114 62.5 315.0 410 115 62.5 325.0 367 116 62.5 335.0 434 117 62.5 345.0 444 118 62.5 355.0 481 119 57.5 5.0 433 120 57.5 15.0 478 121 57.5 25.0 478 133 57.5 145.0 526 134 57.5 155.0 548 135 57.5 165.0 474 136 57.5 175.0 423 137 57.5 185.0 369 138 57.5 195.0 409 139 57.5 205.0 441 140 57.5 215.0 371 141 57.5 225.0 427 148 57.5 295.0 466 149 57.5 305.0 396 150 57.5 315.0 404 151 57.5 325.0 406 152 57.5 335.0 372 153 57.5 345.0 333 154 57.5 355.0 402 155 52.5 5.0 458 156 52.5 15.0 503 169 52.5 145.0 471 170 52.5 155.0 495 171 52.5 165.0 463 172 52.5 175.0 437 173 52.5 185.0 440 174 52.5 195.0 402 175 52.5 205.0 390 176 52.5 215.0 360 177 52.5 225.0 383 178 52.5 235.0 368 185 52.5 305.0 421 186 52.5 315.0 375 187 52.5 325.0 370 188 52.5 335.0 365 189 52.5 345.0 361 190 52.5 355.0 430 218 47.5 137.5 570 219 47.5 142.5 519 220 47.5 147.5 490 221 47.5 152.5 461 222 47.5 157.5 417 223 47.5 162.5 420 224 47.5 167.5 397 225 47.5 172.5 396 226 47.5 177.5 395 227 47.5 182.5 385 228 47.5 187.5 407 229 47.5 192.5 390 230 47.5 197.5 373 231 47.5 202.5 363 232 47.5 207.5 380 233 47.5 212.5 391 234 47.5 217.5 369 235 47.5 222.5 387 236 47.5 227.5 391 237 47.5 232.5 416 238 47.5 237.5 420 251 47.5 302.5 433 252 47.5 307.5 365 253 47.5 312.5 348 254 47.5 317.5 370 255 47.5 322.5 368 256 47.5 327.5 370 257 47.5 332.5 374 258 47.5 337.5 383 259 47.5 342.5 358 260 47.5 347.5 384 261 47.5 352.5 417 262 47.5 357.5 449 263 42.5 2.5 543 264 42.5 7.5 601 265 42.5 12.5 552 266 42.5 17.5 582 268 42.5 27.5 571 269 42.5 32.5 587 289 42.5 132.5 507 290 42.5 137.5 602 291 42.5 142.5 555 292 42.5 147.5 477 293 42.5 152.5 400 294 42.5 157.5 398 295 42.5 162.5 371 296 42.5 167.5 376 297 42.5 172.5 386 298 42.5 177.5 378 299 42.5 182.5 373 300 42.5 187.5 364 301 42.5 192.5 372 302 42.5 197.5 369 303 42.5 202.5 364 304 42.5 207.5 355 305 42.5 212.5 362 306 42.5 217.5 366 307 42.5 222.5 369 308 42.5 227.5 410 309 42.5 232.5 375 310 42.5 237.5 412 320 42.5 287.5 537 321 42.5 292.5 507 322 42.5 297.5 423 323 42.5 302.5 400 324 42.5 307.5 401 325 42.5 312.5 406 326 42.5 317.5 412 327 42.5 322.5 413 328 42.5 327.5 406 329 42.5 332.5 389 330 42.5 337.5 386 331 42.5 342.5 389 332 42.5 347.5 423 333 42.5 352.5 429 334 42.5 357.5 591 335 37.5 2.5 542 336 37.5 7.5 534 337 37.5 12.5 534 338 37.5 17.5 537 339 37.5 22.5 606 340 37.5 27.5 637 359 37.5 122.5 714 361 37.5 132.5 535 362 37.5 137.5 492 363 37.5 142.5 459 364 37.5 147.5 402 365 37.5 152.5 379 366 37.5 157.5 364 367 37.5 162.5 381 368 37.5 167.5 374 369 37.5 172.5 364 370 37.5 177.5 374 371 37.5 182.5 369 372 37.5 187.5 378 373 37.5 192.5 347 374 37.5 197.5 379 375 37.5 202.5 358 376 37.5 207.5 386 377 37.5 212.5 385 378 37.5 217.5 406 379 37.5 222.5 430 380 37.5 227.5 406 381 37.5 232.5 431 382 37.5 237.5 381 391 37.5 282.5 471 392 37.5 287.5 481 393 37.5 292.5 431 394 37.5 297.5 443 395 37.5 302.5 461 396 37.5 307.5 418 397 37.5 312.5 415 398 37.5 317.5 406 399 37.5 322.5 419 400 37.5 327.5 408 401 37.5 332.5 442 402 37.5 337.5 425 403 37.5 342.5 485 404 37.5 347.5 459 405 37.5 352.5 485 406 37.5 357.5 514 411 32.5 22.5 502 412 32.5 27.5 624 413 32.5 32.5 504 431 32.5 122.5 693 432 32.5 127.5 495 433 32.5 132.5 449 434 32.5 137.5 433 435 32.5 142.5 379 436 32.5 147.5 383 437 32.5 152.5 379 438 32.5 157.5 379 439 32.5 162.5 435 440 32.5 167.5 377 441 32.5 172.5 421 442 32.5 177.5 406 443 32.5 182.5 388 444 32.5 187.5 390 445 32.5 192.5 394 446 32.5 197.5 405 447 32.5 202.5 410 448 32.5 207.5 392 449 32.5 212.5 413 450 32.5 217.5 405 451 32.5 222.5 427 452 32.5 227.5 415 453 32.5 232.5 459 454 32.5 237.5 459 455 32.5 242.5 445 461 32.5 272.5 652 462 32.5 277.5 498 463 32.5 282.5 422 464 32.5 287.5 437 465 32.5 292.5 451 466 32.5 297.5 483 467 32.5 302.5 445 468 32.5 307.5 427 469 32.5 312.5 449 470 32.5 317.5 390 471 32.5 322.5 449 472 32.5 327.5 465 473 32.5 332.5 453 474 32.5 337.5 445 475 32.5 342.5 513 476 32.5 347.5 538 477 32.5 352.5 575 503 27.5 122.5 421 504 27.5 127.5 419 505 27.5 132.5 379 506 27.5 137.5 340 507 27.5 142.5 366 508 27.5 147.5 381 509 27.5 152.5 414 510 27.5 157.5 412 511 27.5 162.5 404 512 27.5 167.5 378 513 27.5 172.5 395 514 27.5 177.5 415 515 27.5 182.5 404 516 27.5 187.5 420 517 27.5 192.5 388 518 27.5 197.5 396 519 27.5 202.5 390 520 27.5 207.5 424 521 27.5 212.5 418 522 27.5 217.5 451 523 27.5 222.5 470 524 27.5 227.5 455 525 27.5 232.5 460 526 27.5 237.5 449 527 27.5 242.5 445 528 27.5 247.5 423 531 27.5 262.5 472 532 27.5 267.5 438 533 27.5 272.5 431 534 27.5 277.5 442 535 27.5 282.5 442 536 27.5 287.5 448 537 27.5 292.5 414 538 27.5 297.5 420 539 27.5 302.5 425 540 27.5 307.5 416 541 27.5 312.5 390 542 27.5 317.5 428 543 27.5 322.5 421 544 27.5 327.5 541 547 27.5 342.5 543 548 27.5 347.5 520 558 22.5 37.5 654 563 22.5 62.5 470 573 22.5 112.5 495 574 22.5 117.5 422 575 22.5 122.5 381 576 22.5 127.5 368 577 22.5 132.5 341 578 22.5 137.5 338 579 22.5 142.5 368 580 22.5 147.5 374 581 22.5 152.5 367 584 22.5 167.5 408 585 22.5 172.5 437 586 22.5 177.5 364 587 22.5 182.5 399 588 22.5 187.5 388 589 22.5 192.5 394 590 22.5 197.5 441 591 22.5 202.5 503 592 22.5 207.5 437 593 22.5 212.5 424 595 22.5 222.5 416 596 22.5 227.5 369 597 22.5 232.5 431 598 22.5 237.5 402 599 22.5 242.5 439 600 22.5 247.5 531 601 22.5 252.5 479 603 22.5 262.5 426 604 22.5 267.5 482 605 22.5 272.5 427 606 22.5 277.5 437 607 22.5 282.5 512 608 22.5 287.5 433 609 22.5 292.5 444 610 22.5 297.5 397 611 22.5 302.5 427 612 22.5 307.5 439 613 22.5 312.5 379 614 22.5 317.5 420 615 22.5 322.5 502 618 22.5 337.5 498 619 22.5 342.5 593 633 17.5 52.5 484 634 17.5 57.5 548 636 17.5 67.5 558 639 17.5 82.5 564 640 17.5 87.5 529 641 17.5 92.5 524 644 17.5 107.5 559 645 17.5 112.5 418 646 17.5 117.5 380 647 17.5 122.5 377 648 17.5 127.5 345 649 17.5 132.5 336 650 17.5 137.5 350 651 17.5 142.5 357 652 17.5 147.5 371 653 17.5 152.5 349 654 17.5 157.5 430 656 17.5 167.5 355 657 17.5 172.5 411 659 17.5 182.5 409 660 17.5 187.5 385 663 17.5 202.5 374 666 17.5 217.5 483 667 17.5 222.5 349 668 17.5 227.5 415 669 17.5 232.5 403 670 17.5 237.5 414 671 17.5 242.5 388 672 17.5 247.5 428 673 17.5 252.5 451 674 17.5 257.5 395 675 17.5 262.5 431 676 17.5 267.5 395 677 17.5 272.5 418 678 17.5 277.5 394 679 17.5 282.5 433 680 17.5 287.5 452 681 17.5 292.5 416 682 17.5 297.5 501 683 17.5 302.5 416 684 17.5 307.5 427 685 17.5 312.5 390 690 17.5 337.5 482 691 17.5 342.5 548 704 12.5 47.5 646 705 12.5 52.5 503 706 12.5 57.5 554 709 12.5 72.5 481 710 12.5 77.5 468 711 12.5 82.5 558 712 12.5 87.5 434 713 12.5 92.5 495 715 12.5 102.5 533 716 12.5 107.5 541 717 12.5 112.5 381 718 12.5 117.5 403 719 12.5 122.5 411 720 12.5 127.5 380 721 12.5 132.5 348 722 12.5 137.5 375 723 12.5 142.5 346 724 12.5 147.5 346 725 12.5 152.5 351 738 12.5 217.5 356 743 12.5 242.5 340 745 12.5 252.5 351 746 12.5 257.5 364 747 12.5 262.5 404 748 12.5 267.5 414 749 12.5 272.5 405 750 12.5 277.5 382 751 12.5 282.5 441 752 12.5 287.5 477 753 12.5 292.5 460 754 12.5 297.5 498 755 12.5 302.5 371 756 12.5 307.5 412 757 12.5 312.5 440 758 12.5 317.5 377 761 12.5 332.5 443 762 12.5 337.5 477 763 12.5 342.5 534 767 7.5 2.5 421 777 7.5 52.5 541 780 7.5 67.5 441 781 7.5 72.5 461 782 7.5 77.5 427 783 7.5 82.5 437 784 7.5 87.5 394 785 7.5 92.5 394 786 7.5 97.5 438 787 7.5 102.5 470 788 7.5 107.5 409 789 7.5 112.5 356 790 7.5 117.5 448 791 7.5 122.5 441 792 7.5 127.5 356 793 7.5 132.5 303 795 7.5 142.5 459 796 7.5 147.5 324 797 7.5 152.5 351 810 7.5 217.5 318 818 7.5 257.5 353 819 7.5 262.5 327 820 7.5 267.5 351 821 7.5 272.5 377 822 7.5 277.5 353 823 7.5 282.5 439 827 7.5 302.5 472 828 7.5 307.5 387 829 7.5 312.5 384 830 7.5 317.5 412 831 7.5 322.5 387 832 7.5 327.5 456 833 7.5 332.5 400 834 7.5 337.5 356 835 7.5 342.5 471 836 7.5 347.5 420 837 7.5 352.5 378 838 7.5 357.5 364 839 2.5 2.5 409 840 2.5 7.5 392 854 2.5 77.5 382 855 2.5 82.5 346 856 2.5 87.5 360 857 2.5 92.5 371 858 2.5 97.5 404 859 2.5 102.5 493 860 2.5 107.5 469 861 2.5 112.5 466 864 2.5 127.5 470 868 2.5 147.5 313 869 2.5 152.5 359 890 2.5 257.5 379 891 2.5 262.5 384 892 2.5 267.5 375 893 2.5 272.5 346 894 2.5 277.5 381 901 2.5 312.5 502 902 2.5 317.5 399 904 2.5 327.5 404 905 2.5 332.5 344 908 2.5 347.5 454 909 2.5 352.5 446 910 2.5 357.5 452 911 -2.5 2.5 494 912 -2.5 7.5 449 920 -2.5 47.5 438 925 -2.5 72.5 356 926 -2.5 77.5 410 927 -2.5 82.5 366 928 -2.5 87.5 381 929 -2.5 92.5 361 930 -2.5 97.5 415 932 -2.5 107.5 495 941 -2.5 152.5 423 962 -2.5 257.5 403 963 -2.5 262.5 380 964 -2.5 267.5 404 965 -2.5 272.5 391 966 -2.5 277.5 412 975 -2.5 322.5 384 976 -2.5 327.5 458 981 -2.5 352.5 497 982 -2.5 357.5 519 983 -7.5 2.5 517 984 -7.5 7.5 488 997 -7.5 72.5 361 998 -7.5 77.5 376 999 -7.5 82.5 322 1000 -7.5 87.5 360 1001 -7.5 92.5 392 1002 -7.5 97.5 381 1013 -7.5 152.5 335 1034 -7.5 257.5 444 1035 -7.5 262.5 436 1036 -7.5 267.5 454 1038 -7.5 277.5 442 1048 -7.5 327.5 472 1052 -7.5 347.5 429 1053 -7.5 352.5 502 1054 -7.5 357.5 489 1055 -12.5 2.5 489 1056 -12.5 7.5 492 1057 -12.5 12.5 473 1068 -12.5 67.5 343 1069 -12.5 72.5 361 1071 -12.5 82.5 371 1072 -12.5 87.5 354 1073 -12.5 92.5 362 1074 -12.5 97.5 418 1085 -12.5 152.5 364 1086 -12.5 157.5 434 1088 -12.5 167.5 334 1091 -12.5 182.5 382 1092 -12.5 187.5 323 1105 -12.5 252.5 398 1106 -12.5 257.5 423 1110 -12.5 277.5 419 1111 -12.5 282.5 423 1119 -12.5 322.5 449 1123 -12.5 342.5 414 1124 -12.5 347.5 413 1125 -12.5 352.5 438 1126 -12.5 357.5 494 1127 -17.5 2.5 505 1128 -17.5 7.5 497 1129 -17.5 12.5 485 1139 -17.5 62.5 368 1142 -17.5 77.5 425 1143 -17.5 82.5 441 1144 -17.5 87.5 393 1145 -17.5 92.5 404 1146 -17.5 97.5 420 1157 -17.5 152.5 363 1159 -17.5 162.5 411 1161 -17.5 172.5 367 1162 -17.5 177.5 432 1163 -17.5 182.5 346 1164 -17.5 187.5 315 1165 -17.5 192.5 359 1167 -17.5 202.5 353 1183 -17.5 282.5 546 1184 -17.5 287.5 442 1191 -17.5 322.5 414 1195 -17.5 342.5 367 1196 -17.5 347.5 507 1197 -17.5 352.5 440 1198 -17.5 357.5 449 1199 -22.5 2.5 482 1200 -22.5 7.5 498 1201 -22.5 12.5 408 1206 -22.5 37.5 486 1209 -22.5 52.5 409 1217 -22.5 92.5 452 1218 -22.5 97.5 460 1219 -22.5 102.5 425 1229 -22.5 152.5 451 1231 -22.5 162.5 454 1232 -22.5 167.5 430 1233 -22.5 172.5 341 1234 -22.5 177.5 355 1235 -22.5 182.5 354 1236 -22.5 187.5 375 1237 -22.5 192.5 464 1238 -22.5 197.5 356 1245 -22.5 232.5 351 1255 -22.5 282.5 670 1256 -22.5 287.5 540 1261 -22.5 312.5 437 1262 -22.5 317.5 454 1263 -22.5 322.5 452 1269 -22.5 352.5 429 1270 -22.5 357.5 451 1271 -27.5 2.5 423 1272 -27.5 7.5 461 1273 -27.5 12.5 440 1274 -27.5 17.5 407 1277 -27.5 32.5 429 1278 -27.5 37.5 437 1279 -27.5 42.5 418 1280 -27.5 47.5 432 1292 -27.5 107.5 424 1293 -27.5 112.5 522 1301 -27.5 152.5 390 1302 -27.5 157.5 449 1303 -27.5 162.5 385 1304 -27.5 167.5 410 1305 -27.5 172.5 362 1306 -27.5 177.5 346 1307 -27.5 182.5 362 1308 -27.5 187.5 382 1309 -27.5 192.5 379 1313 -27.5 212.5 392 1314 -27.5 217.5 381 1315 -27.5 222.5 391 1316 -27.5 227.5 367 1328 -27.5 287.5 449 1333 -27.5 312.5 405 1334 -27.5 317.5 429 1342 -27.5 357.5 413 1343 -32.5 2.5 469 1344 -32.5 7.5 450 1345 -32.5 12.5 469 1346 -32.5 17.5 440 1347 -32.5 22.5 437 1348 -32.5 27.5 430 1349 -32.5 32.5 403 1350 -32.5 37.5 444 1351 -32.5 42.5 503 1352 -32.5 47.5 417 1353 -32.5 52.5 395 1356 -32.5 67.5 400 1357 -32.5 72.5 397 1358 -32.5 77.5 413 1359 -32.5 82.5 385 1360 -32.5 87.5 384 1361 -32.5 92.5 401 1362 -32.5 97.5 456 1363 -32.5 102.5 387 1364 -32.5 107.5 499 1365 -32.5 112.5 435 1366 -32.5 117.5 458 1373 -32.5 152.5 444 1374 -32.5 157.5 387 1375 -32.5 162.5 339 1376 -32.5 167.5 389 1377 -32.5 172.5 352 1378 -32.5 177.5 356 1379 -32.5 182.5 386 1380 -32.5 187.5 373 1381 -32.5 192.5 398 1382 -32.5 197.5 422 1383 -32.5 202.5 341 1384 -32.5 207.5 336 1404 -32.5 307.5 453 1405 -32.5 312.5 383 1410 -32.5 337.5 326 1411 -32.5 342.5 410 1412 -32.5 347.5 442 1413 -32.5 352.5 441 1414 -32.5 357.5 452 1415 -37.5 2.5 382 1416 -37.5 7.5 347 1417 -37.5 12.5 443 1418 -37.5 17.5 462 1419 -37.5 22.5 448 1429 -37.5 72.5 411 1430 -37.5 77.5 381 1431 -37.5 82.5 352 1432 -37.5 87.5 375 1433 -37.5 92.5 360 1434 -37.5 97.5 344 1435 -37.5 102.5 410 1438 -37.5 117.5 412 1439 -37.5 122.5 425 1440 -37.5 127.5 433 1441 -37.5 132.5 433 1442 -37.5 137.5 456 1443 -37.5 142.5 434 1444 -37.5 147.5 430 1445 -37.5 152.5 408 1446 -37.5 157.5 367 1447 -37.5 162.5 367 1448 -37.5 167.5 354 1449 -37.5 172.5 373 1450 -37.5 177.5 371 1451 -37.5 182.5 392 1452 -37.5 187.5 332 1453 -37.5 192.5 376 1454 -37.5 197.5 348 1469 -37.5 272.5 581 1470 -37.5 277.5 472 1471 -37.5 282.5 470 1475 -37.5 302.5 587 1484 -37.5 347.5 352 1485 -37.5 352.5 398 1486 -37.5 357.5 447 1516 -42.5 147.5 448 1517 -42.5 152.5 343 1518 -42.5 157.5 367 1519 -42.5 162.5 337 1520 -42.5 167.5 348 1521 -42.5 172.5 437 1522 -42.5 177.5 422 1523 -42.5 182.5 420 1524 -42.5 187.5 373 1546 -42.5 297.5 706 1572 -47.5 67.5 518 1573 -47.5 72.5 456 1591 -47.5 162.5 326 1592 -47.5 167.5 338 1593 -47.5 172.5 467 1594 -47.5 177.5 397 1615 -47.5 282.5 381 1618 -47.5 297.5 531 1647 -52.5 165.0 427 1648 -52.5 175.0 492 1658 -52.5 275.0 380 1659 -52.5 285.0 314 1660 -52.5 295.0 504 1661 -52.5 305.0 375 1662 -52.5 315.0 438 1663 -52.5 325.0 370 1682 -57.5 155.0 444 1683 -57.5 165.0 447 1684 -57.5 175.0 462 1695 -57.5 285.0 449 1696 -57.5 295.0 396 1697 -57.5 305.0 377 1698 -57.5 315.0 389 1713 -62.5 105.0 395 1714 -62.5 115.0 339 1715 -62.5 125.0 430 1720 -62.5 175.0 443 1732 -62.5 295.0 318 1733 -62.5 305.0 292 1734 -62.5 315.0 296 1801 -77.5 170.0 434