Stratus Average Base Height (meters) March, April, May (1971 - 1996) Night, Land Areas Only Global Average: 412 Zonal Averages 32 zones Lat.N Average 82.5 423 77.5 319 72.5 231 67.5 410 62.5 412 57.5 383 52.5 266 47.5 415 42.5 471 37.5 477 32.5 457 27.5 474 22.5 495 17.5 493 12.5 491 7.5 380 2.5 371 -2.5 443 -7.5 528 -12.5 580 -17.5 325 -22.5 399 -27.5 399 -32.5 403 -37.5 407 -42.5 566 -47.5 484 -52.5 441 -62.5 347 -67.5 455 -72.5 322 -77.5 798 Grid Box Averages 622 boxes filled with min 30 obs. Box # Lat.N Lon.E Average N.Obs. 2 82.5 20.0 285 326 3 82.5 60.0 293 1638 8 82.5 -100.0 582 250 9 82.5 -60.0 423 415 11 77.5 10.0 401 819 12 77.5 30.0 294 2602 14 77.5 70.0 270 1441 15 77.5 90.0 279 2917 16 77.5 110.0 278 2712 17 77.5 130.0 257 475 18 77.5 150.0 290 589 23 77.5 -110.0 358 309 25 77.5 -70.0 349 565 28 77.5 -10.0 327 1563 29 72.5 10.0 344 2196 30 72.5 30.0 478 3811 31 72.5 50.0 267 1470 32 72.5 70.0 277 2870 33 72.5 90.0 250 1577 34 72.5 110.0 333 2024 35 72.5 130.0 332 3492 36 72.5 150.0 284 2338 37 72.5 170.0 271 1348 38 72.5 -170.0 279 963 39 72.5 -150.0 388 3568 40 72.5 -130.0 239 478 42 72.5 -90.0 313 343 43 72.5 -70.0 393 367 45 72.5 -30.0 133 907 46 72.5 -10.0 250 1746 48 67.5 15.0 384 11265 49 67.5 25.0 400 20329 50 67.5 35.0 398 13343 51 67.5 45.0 350 7967 52 67.5 55.0 353 7925 53 67.5 65.0 363 5737 54 67.5 75.0 315 2021 55 67.5 85.0 500 1657 56 67.5 95.0 722 271 57 67.5 105.0 826 183 58 67.5 115.0 571 267 59 67.5 125.0 515 693 60 67.5 135.0 728 484 62 67.5 155.0 444 878 63 67.5 165.0 344 1715 64 67.5 175.0 365 1511 65 67.5 -175.0 309 3193 66 67.5 -165.0 380 1801 68 67.5 -145.0 375 258 69 67.5 -135.0 341 802 70 67.5 -125.0 406 548 71 67.5 -115.0 409 747 72 67.5 -105.0 322 608 73 67.5 -95.0 426 473 74 67.5 -85.0 401 805 75 67.5 -75.0 457 527 76 67.5 -65.0 386 646 77 67.5 -55.0 561 3550 78 67.5 -45.0 688 359 79 67.5 -35.0 315 2665 80 67.5 -25.0 430 2356 81 67.5 -15.0 466 6067 83 62.5 5.0 510 12094 84 62.5 15.0 310 17876 85 62.5 25.0 335 27381 86 62.5 35.0 373 7513 87 62.5 45.0 348 8785 88 62.5 55.0 386 6041 89 62.5 65.0 474 4003 90 62.5 75.0 512 2599 91 62.5 85.0 559 1885 92 62.5 95.0 671 1547 93 62.5 105.0 641 451 94 62.5 115.0 611 513 95 62.5 125.0 582 762 96 62.5 135.0 691 723 97 62.5 145.0 593 1040 98 62.5 155.0 447 1358 99 62.5 165.0 381 1619 100 62.5 175.0 387 1820 101 62.5 -175.0 375 978 102 62.5 -165.0 289 442 103 62.5 -155.0 628 369 104 62.5 -145.0 415 266 105 62.5 -135.0 410 118 106 62.5 -125.0 485 181 107 62.5 -115.0 351 301 108 62.5 -105.0 438 71 109 62.5 -95.0 263 620 110 62.5 -85.0 352 342 111 62.5 -75.0 276 396 112 62.5 -65.0 297 268 113 62.5 -55.0 430 1942 114 62.5 -45.0 480 3344 116 62.5 -25.0 368 4884 117 62.5 -15.0 414 1571 118 62.5 -5.0 252 4408 119 57.5 5.0 417 15587 120 57.5 15.0 282 30196 121 57.5 25.0 384 11370 122 57.5 35.0 372 7145 123 57.5 45.0 352 5298 124 57.5 55.0 433 3288 125 57.5 65.0 469 4174 126 57.5 75.0 459 4148 127 57.5 85.0 462 4014 128 57.5 95.0 738 2475 129 57.5 105.0 698 1109 130 57.5 115.0 805 940 131 57.5 125.0 751 950 132 57.5 135.0 573 1811 133 57.5 145.0 435 2366 134 57.5 155.0 338 2493 135 57.5 165.0 371 942 137 57.5 -175.0 221 569 138 57.5 -165.0 279 415 139 57.5 -155.0 441 883 141 57.5 -135.0 338 567 142 57.5 -125.0 341 299 143 57.5 -115.0 402 480 144 57.5 -105.0 313 534 145 57.5 -95.0 286 1064 147 57.5 -75.0 282 534 148 57.5 -65.0 322 186 154 57.5 -5.0 274 14202 155 52.5 5.0 245 42544 156 52.5 15.0 345 18525 157 52.5 25.0 308 8936 158 52.5 35.0 340 10625 159 52.5 45.0 338 4220 160 52.5 55.0 406 2619 161 52.5 65.0 490 3196 162 52.5 75.0 452 3531 163 52.5 85.0 630 4001 164 52.5 95.0 805 1495 165 52.5 105.0 786 3055 166 52.5 115.0 877 2342 167 52.5 125.0 697 3231 168 52.5 135.0 550 6650 169 52.5 145.0 365 5999 170 52.5 155.0 382 3156 173 52.5 -175.0 402 501 177 52.5 -135.0 365 881 178 52.5 -125.0 380 1091 179 52.5 -115.0 321 1531 180 52.5 -105.0 299 2144 181 52.5 -95.0 307 962 182 52.5 -85.0 346 555 183 52.5 -75.0 349 194 184 52.5 -65.0 303 1138 185 52.5 -55.0 277 1016 189 52.5 -15.0 343 1013 190 52.5 -5.0 253 37346 191 47.5 2.5 241 9423 192 47.5 7.5 317 8327 193 47.5 12.5 554 14134 194 47.5 17.5 613 14829 195 47.5 22.5 552 6910 196 47.5 27.5 400 8136 197 47.5 32.5 358 7023 198 47.5 37.5 396 8229 199 47.5 42.5 357 6368 200 47.5 47.5 513 1588 201 47.5 52.5 622 762 202 47.5 57.5 667 850 203 47.5 62.5 727 881 204 47.5 67.5 702 555 205 47.5 72.5 628 1062 206 47.5 77.5 637 581 207 47.5 82.5 744 810 208 47.5 87.5 780 848 209 47.5 92.5 718 492 210 47.5 97.5 1178 37 211 47.5 102.5 1002 200 212 47.5 107.5 1007 255 213 47.5 112.5 1219 135 214 47.5 117.5 843 379 215 47.5 122.5 761 505 216 47.5 127.5 793 1064 217 47.5 132.5 648 1891 218 47.5 137.5 548 4645 219 47.5 142.5 383 5308 220 47.5 147.5 474 607 221 47.5 152.5 416 2702 238 47.5 -122.5 346 1438 239 47.5 -117.5 438 323 240 47.5 -112.5 387 471 241 47.5 -107.5 415 405 242 47.5 -102.5 334 579 243 47.5 -97.5 312 813 244 47.5 -92.5 357 1012 245 47.5 -87.5 393 1167 246 47.5 -82.5 299 1054 247 47.5 -77.5 250 733 248 47.5 -72.5 269 597 249 47.5 -67.5 232 1076 250 47.5 -62.5 182 691 251 47.5 -57.5 241 1712 252 47.5 -52.5 216 2274 261 47.5 -7.5 431 1161 262 47.5 -2.5 278 9541 263 42.5 2.5 416 5016 264 42.5 7.5 494 4084 265 42.5 12.5 410 2513 266 42.5 17.5 639 3786 267 42.5 22.5 681 6013 268 42.5 27.5 478 8136 269 42.5 32.5 456 1484 270 42.5 37.5 438 3828 271 42.5 42.5 528 10318 272 42.5 47.5 558 2938 273 42.5 52.5 511 1028 274 42.5 57.5 626 640 275 42.5 62.5 824 319 276 42.5 67.5 725 513 277 42.5 72.5 637 1268 278 42.5 77.5 678 845 279 42.5 82.5 822 693 280 42.5 87.5 880 462 281 42.5 92.5 1481 230 282 42.5 97.5 1130 142 283 42.5 102.5 1477 77 284 42.5 107.5 983 151 285 42.5 112.5 886 446 286 42.5 117.5 889 503 287 42.5 122.5 641 1813 288 42.5 127.5 577 2363 289 42.5 132.5 467 3841 290 42.5 137.5 406 549 291 42.5 142.5 443 675 292 42.5 147.5 352 1228 310 42.5 -122.5 412 583 311 42.5 -117.5 552 124 312 42.5 -112.5 559 220 313 42.5 -107.5 404 287 314 42.5 -102.5 286 704 315 42.5 -97.5 348 1926 316 42.5 -92.5 353 587 317 42.5 -87.5 304 2009 318 42.5 -82.5 318 1895 319 42.5 -77.5 289 1028 320 42.5 -72.5 503 2102 321 42.5 -67.5 395 865 322 42.5 -62.5 212 705 333 42.5 -7.5 417 8261 334 42.5 -2.5 413 9969 335 37.5 2.5 296 2026 336 37.5 7.5 373 1228 337 37.5 12.5 354 1410 338 37.5 17.5 494 1219 339 37.5 22.5 395 1400 340 37.5 27.5 466 998 341 37.5 32.5 460 550 342 37.5 37.5 497 690 343 37.5 42.5 526 536 344 37.5 47.5 560 1283 345 37.5 52.5 674 1284 346 37.5 57.5 752 800 347 37.5 62.5 623 277 348 37.5 67.5 566 741 349 37.5 72.5 744 508 350 37.5 77.5 1488 123 351 37.5 82.5 1531 55 352 37.5 87.5 1791 32 353 37.5 92.5 977 106 354 37.5 97.5 973 359 355 37.5 102.5 796 1308 356 37.5 107.5 791 1900 357 37.5 112.5 797 1125 358 37.5 117.5 615 1334 359 37.5 122.5 409 1955 360 37.5 127.5 619 6786 361 37.5 132.5 370 1103 362 37.5 137.5 464 1109 363 37.5 142.5 442 612 382 37.5 -122.5 378 369 383 37.5 -117.5 677 82 384 37.5 -112.5 414 56 385 37.5 -107.5 753 52 386 37.5 -102.5 316 789 387 37.5 -97.5 347 1509 388 37.5 -92.5 375 2255 389 37.5 -87.5 352 1282 390 37.5 -82.5 306 1703 391 37.5 -77.5 331 1715 401 37.5 -27.5 199 523 405 37.5 -7.5 400 3959 406 37.5 -2.5 538 6167 407 32.5 2.5 424 556 408 32.5 7.5 1168 117 409 32.5 12.5 806 473 410 32.5 17.5 673 101 411 32.5 22.5 499 473 413 32.5 32.5 386 1003 414 32.5 37.5 412 725 416 32.5 47.5 859 91 417 32.5 52.5 793 46 420 32.5 67.5 710 113 421 32.5 72.5 706 286 422 32.5 77.5 1206 43 423 32.5 82.5 1335 52 425 32.5 92.5 874 186 426 32.5 97.5 747 1348 427 32.5 102.5 721 1859 428 32.5 107.5 734 2535 429 32.5 112.5 496 3484 430 32.5 117.5 415 3379 431 32.5 122.5 300 3909 432 32.5 127.5 574 3089 433 32.5 132.5 382 620 434 32.5 137.5 474 877 455 32.5 -117.5 370 541 457 32.5 -107.5 843 42 458 32.5 -102.5 334 637 459 32.5 -97.5 353 1990 460 32.5 -92.5 306 1603 461 32.5 -87.5 277 1231 462 32.5 -82.5 265 2317 466 32.5 -62.5 490 90 477 32.5 -7.5 407 3257 478 32.5 -2.5 438 692 487 27.5 42.5 896 59 489 27.5 52.5 964 40 491 27.5 62.5 973 128 492 27.5 67.5 1035 62 493 27.5 72.5 1155 33 494 27.5 77.5 888 65 495 27.5 82.5 763 82 496 27.5 87.5 485 525 497 27.5 92.5 520 985 498 27.5 97.5 542 533 499 27.5 102.5 469 2561 500 27.5 107.5 477 6851 501 27.5 112.5 439 5616 502 27.5 117.5 387 4941 503 27.5 122.5 441 6796 504 27.5 127.5 282 82 507 27.5 142.5 190 119 515 27.5 -177.5 452 163 527 27.5 -117.5 502 262 528 27.5 -112.5 835 46 529 27.5 -107.5 686 163 530 27.5 -102.5 409 1830 531 27.5 -97.5 299 2547 532 27.5 -92.5 313 778 534 27.5 -82.5 334 340 535 27.5 -77.5 577 294 547 27.5 -17.5 342 419 548 27.5 -12.5 455 264 561 22.5 52.5 420 44 562 22.5 57.5 533 140 564 22.5 67.5 794 465 565 22.5 72.5 621 213 566 22.5 77.5 1073 55 567 22.5 82.5 799 82 568 22.5 87.5 421 2585 569 22.5 92.5 351 1493 570 22.5 97.5 567 382 571 22.5 102.5 621 500 572 22.5 107.5 422 2411 573 22.5 112.5 423 1415 574 22.5 117.5 443 2312 575 22.5 122.5 533 10364 591 22.5 -157.5 423 41 601 22.5 -107.5 875 101 602 22.5 -102.5 631 615 603 22.5 -97.5 485 2355 605 22.5 -87.5 451 322 606 22.5 -82.5 616 118 607 22.5 -77.5 531 158 608 22.5 -72.5 575 138 619 22.5 -17.5 396 406 630 17.5 37.5 341 39 631 17.5 42.5 587 156 633 17.5 52.5 520 67 637 17.5 72.5 526 265 638 17.5 77.5 635 257 639 17.5 82.5 681 85 641 17.5 92.5 489 145 642 17.5 97.5 447 463 643 17.5 102.5 584 466 644 17.5 107.5 503 294 645 17.5 112.5 485 96 647 17.5 122.5 492 132 672 17.5 -112.5 962 37 674 17.5 -102.5 526 306 675 17.5 -97.5 600 1859 676 17.5 -92.5 418 2053 677 17.5 -87.5 324 413 679 17.5 -77.5 930 46 681 17.5 -67.5 452 50 691 17.5 -17.5 471 123 695 12.5 2.5 976 73 702 12.5 37.5 222 95 709 12.5 72.5 432 131 710 12.5 77.5 480 758 713 12.5 92.5 471 41 714 12.5 97.5 502 348 715 12.5 102.5 669 258 716 12.5 107.5 551 59 719 12.5 122.5 524 125 720 12.5 127.5 455 31 748 12.5 -92.5 321 783 749 12.5 -87.5 473 270 750 12.5 -82.5 1003 81 751 12.5 -77.5 522 204 752 12.5 -72.5 435 393 753 12.5 -67.5 515 1305 754 12.5 -62.5 446 135 763 12.5 -17.5 480 202 765 12.5 -7.5 1261 50 766 12.5 -2.5 1093 55 767 7.5 2.5 377 266 774 7.5 37.5 389 75 775 7.5 42.5 383 150 782 7.5 77.5 486 442 783 7.5 82.5 310 362 786 7.5 97.5 571 444 787 7.5 102.5 632 84 791 7.5 122.5 514 106 801 7.5 172.5 443 67 822 7.5 -82.5 501 135 823 7.5 -77.5 429 55 824 7.5 -72.5 411 575 825 7.5 -67.5 744 34 826 7.5 -62.5 332 173 827 7.5 -57.5 165 145 828 7.5 -52.5 304 51 837 7.5 -7.5 264 724 838 7.5 -2.5 338 431 840 2.5 7.5 449 134 841 2.5 12.5 267 109 842 2.5 17.5 236 39 846 2.5 37.5 213 811 858 2.5 97.5 531 75 859 2.5 102.5 262 324 861 2.5 112.5 150 401 863 2.5 122.5 358 53 873 2.5 172.5 320 129 895 2.5 -77.5 578 60 896 2.5 -72.5 571 86 899 2.5 -57.5 266 36 900 2.5 -52.5 240 121 909 2.5 -7.5 432 90 913 -2.5 12.5 573 119 918 -2.5 37.5 300 539 931 -2.5 102.5 450 119 932 -2.5 107.5 230 122 937 -2.5 132.5 510 42 939 -2.5 142.5 341 37 946 -2.5 177.5 412 53 966 -2.5 -82.5 758 172 967 -2.5 -77.5 778 59 968 -2.5 -72.5 516 331 969 -2.5 -67.5 402 82 970 -2.5 -62.5 350 135 973 -2.5 -47.5 304 39 974 -2.5 -42.5 371 45 989 -7.5 32.5 377 42 990 -7.5 37.5 402 47 1004 -7.5 107.5 500 126 1006 -7.5 117.5 556 32 1012 -7.5 147.5 349 274 1018 -7.5 177.5 435 108 1020 -7.5 -172.5 571 351 1023 -7.5 -157.5 454 36 1038 -7.5 -82.5 819 59 1039 -7.5 -77.5 710 997 1040 -7.5 -72.5 511 178 1042 -7.5 -62.5 536 194 1045 -7.5 -47.5 685 230 1046 -7.5 -42.5 261 164 1047 -7.5 -37.5 349 86 1060 -12.5 27.5 416 38 1061 -12.5 32.5 305 118 1062 -12.5 37.5 290 170 1074 -12.5 97.5 351 38 1081 -12.5 132.5 526 151 1082 -12.5 137.5 477 32 1083 -12.5 142.5 708 188 1088 -12.5 167.5 324 44 1090 -12.5 177.5 442 36 1092 -12.5 -172.5 438 55 1094 -12.5 -162.5 521 34 1111 -12.5 -77.5 631 927 1112 -12.5 -72.5 1160 191 1113 -12.5 -67.5 604 112 1114 -12.5 -62.5 317 85 1115 -12.5 -57.5 1271 34 1117 -12.5 -47.5 542 227 1119 -12.5 -37.5 962 130 1129 -17.5 12.5 142 344 1130 -17.5 17.5 843 47 1132 -17.5 27.5 235 290 1133 -17.5 32.5 373 380 1134 -17.5 37.5 397 412 1136 -17.5 47.5 285 181 1151 -17.5 122.5 329 62 1152 -17.5 127.5 792 56 1153 -17.5 132.5 622 75 1155 -17.5 142.5 1097 71 1156 -17.5 147.5 492 77 1160 -17.5 167.5 414 106 1162 -17.5 177.5 456 199 1163 -17.5 -177.5 515 293 1164 -17.5 -172.5 591 887 1165 -17.5 -167.5 545 323 1183 -17.5 -77.5 526 139 1184 -17.5 -72.5 687 230 1185 -17.5 -67.5 330 325 1186 -17.5 -62.5 225 248 1187 -17.5 -57.5 226 78 1188 -17.5 -52.5 783 42 1189 -17.5 -47.5 271 286 1190 -17.5 -42.5 235 45 1197 -17.5 -7.5 228 79 1201 -22.5 12.5 153 457 1202 -22.5 17.5 823 47 1204 -22.5 27.5 301 229 1205 -22.5 32.5 220 306 1207 -22.5 42.5 367 110 1208 -22.5 47.5 306 260 1221 -22.5 112.5 400 54 1222 -22.5 117.5 545 43 1225 -22.5 132.5 290 78 1226 -22.5 137.5 1395 37 1227 -22.5 142.5 800 66 1228 -22.5 147.5 669 128 1229 -22.5 152.5 400 125 1232 -22.5 167.5 530 114 1235 -22.5 -177.5 382 77 1239 -22.5 -157.5 310 99 1256 -22.5 -72.5 582 42 1257 -22.5 -67.5 392 618 1258 -22.5 -62.5 295 136 1259 -22.5 -57.5 292 34 1260 -22.5 -52.5 170 299 1261 -22.5 -47.5 224 797 1262 -22.5 -42.5 329 232 1274 -27.5 17.5 167 726 1275 -27.5 22.5 1006 106 1276 -27.5 27.5 269 216 1277 -27.5 32.5 338 183 1293 -27.5 112.5 655 97 1295 -27.5 122.5 1028 47 1296 -27.5 127.5 583 34 1298 -27.5 137.5 657 102 1299 -27.5 142.5 823 47 1300 -27.5 147.5 1009 85 1301 -27.5 152.5 305 119 1304 -27.5 167.5 374 56 1307 -27.5 -177.5 238 146 1328 -27.5 -72.5 303 264 1329 -27.5 -67.5 363 536 1330 -27.5 -62.5 385 626 1331 -27.5 -57.5 332 1138 1332 -27.5 -52.5 251 454 1333 -27.5 -47.5 182 1250 1346 -32.5 17.5 261 559 1347 -32.5 22.5 362 661 1348 -32.5 27.5 302 506 1349 -32.5 32.5 297 56 1366 -32.5 117.5 480 145 1367 -32.5 122.5 374 102 1368 -32.5 127.5 412 68 1369 -32.5 132.5 546 100 1370 -32.5 137.5 714 336 1371 -32.5 142.5 338 134 1372 -32.5 147.5 583 61 1373 -32.5 152.5 382 77 1377 -32.5 172.5 187 93 1399 -32.5 -77.5 558 57 1400 -32.5 -72.5 347 195 1401 -32.5 -67.5 571 796 1402 -32.5 -62.5 370 1467 1403 -32.5 -57.5 308 1817 1404 -32.5 -52.5 256 427 1430 -37.5 77.5 356 66 1442 -37.5 137.5 445 58 1443 -37.5 142.5 341 498 1444 -37.5 147.5 301 282 1445 -37.5 152.5 688 32 1449 -37.5 172.5 381 211 1450 -37.5 177.5 389 381 1472 -37.5 -72.5 341 542 1473 -37.5 -67.5 722 197 1474 -37.5 -62.5 400 619 1475 -37.5 -57.5 292 484 1516 -42.5 147.5 440 197 1520 -42.5 167.5 547 43 1521 -42.5 172.5 377 1229 1522 -42.5 177.5 360 69 1523 -42.5 -177.5 226 222 1544 -42.5 -72.5 458 386 1545 -42.5 -67.5 865 222 1546 -42.5 -62.5 449 121 1557 -42.5 -7.5 323 375 1566 -47.5 37.5 294 809 1569 -47.5 52.5 230 185 1573 -47.5 72.5 401 38 1592 -47.5 167.5 346 341 1593 -47.5 172.5 394 236 1616 -47.5 -72.5 581 172 1617 -47.5 -67.5 477 221 1646 -52.5 155.0 222 385 1647 -52.5 165.0 255 327 1659 -52.5 -75.0 422 881 1660 -52.5 -65.0 557 560 1661 -52.5 -55.0 278 187 1732 -62.5 -65.0 493 116 1733 -62.5 -55.0 236 1607 1734 -62.5 -45.0 263 1130 1746 -67.5 75.0 588 81 1748 -67.5 95.0 409 61 1750 -67.5 115.0 437 89 1754 -67.5 155.0 301 82 1768 -67.5 -65.0 493 642 1786 -72.5 -130.0 329 56 1792 -72.5 -10.0 321 209 1801 -77.5 170.0 751 223 1806 -77.5 -90.0 955 46 1809 -77.5 -30.0 442 550