Stratocumulus Average Cloud Amount (%) November (1954 - 1997) Night, Ship Observations Only Global Average: 24.1 Zonal Averages 17 zones Lat.N Average 85 12.9 75 21.0 65 32.6 55 30.8 45 29.5 35 25.0 25 18.3 15 13.3 5 16.1 -5 17.2 -15 23.0 -25 26.7 -35 30.7 -45 30.7 -55 33.1 -65 33.5 -75 24.8 Grid Box Averages 348 filled boxes Box # Lat.N Lon.E Average 1 85 60 10.7 2 85 180 15.1 4 75 20 27.3 5 75 60 31.0 8 75 180 20.0 9 75 220 7.3 11 75 300 19.7 12 75 340 21.1 13 65 10 25.4 14 65 30 31.1 15 65 50 32.2 21 65 170 42.8 22 65 190 47.8 27 65 290 36.4 28 65 310 27.2 29 65 330 27.4 30 65 350 30.3 31 55 10 23.0 32 55 30 34.5 38 55 150 28.0 39 55 170 34.3 40 55 190 33.7 41 55 210 31.1 42 55 230 26.6 46 55 310 31.5 47 55 330 30.4 48 55 350 30.8 49 45 5 15.8 50 45 15 17.9 51 45 25 24.6 52 45 35 22.7 53 45 45 19.5 54 45 55 13.2 62 45 135 16.1 63 45 145 26.8 64 45 155 36.1 65 45 165 34.1 66 45 175 32.1 67 45 185 31.9 68 45 195 28.5 69 45 205 27.4 70 45 215 27.6 71 45 225 33.0 72 45 235 25.5 77 45 285 21.0 78 45 295 28.9 79 45 305 30.0 80 45 315 32.3 81 45 325 29.5 82 45 335 31.2 83 45 345 31.6 84 45 355 24.6 85 35 5 15.9 86 35 15 12.5 87 35 25 11.4 88 35 35 9.7 97 35 125 17.5 98 35 135 18.2 99 35 145 26.8 100 35 155 30.4 101 35 165 29.9 102 35 175 31.0 103 35 185 31.4 104 35 195 30.5 105 35 205 30.6 106 35 215 31.6 107 35 225 34.0 108 35 235 26.0 109 35 245 17.1 112 35 275 17.1 113 35 285 20.5 114 35 295 23.6 115 35 305 21.6 116 35 315 21.0 117 35 325 22.9 118 35 335 24.5 119 35 345 22.8 120 35 355 15.2 124 25 35 2.9 125 25 45 6.8 126 25 55 2.4 127 25 65 1.5 129 25 85 10.1 132 25 115 26.4 133 25 125 27.1 134 25 135 24.8 135 25 145 19.1 136 25 155 18.1 137 25 165 16.2 138 25 175 18.1 139 25 185 19.9 140 25 195 16.9 141 25 205 16.7 142 25 215 23.0 143 25 225 35.7 144 25 235 37.3 145 25 245 16.0 146 25 255 10.0 147 25 265 16.3 148 25 275 15.4 149 25 285 14.2 150 25 295 13.0 151 25 305 12.2 152 25 315 12.9 153 25 325 13.0 154 25 335 15.8 155 25 345 10.3 160 15 35 2.4 161 15 45 2.8 162 15 55 5.1 163 15 65 5.3 164 15 75 8.1 165 15 85 10.6 166 15 95 8.9 167 15 105 17.6 168 15 115 17.6 169 15 125 17.4 170 15 135 13.7 171 15 145 11.8 172 15 155 10.0 173 15 165 10.2 174 15 175 12.7 175 15 185 13.7 176 15 195 15.5 177 15 205 13.4 178 15 215 22.3 179 15 225 26.5 180 15 235 33.3 181 15 245 17.5 182 15 255 7.1 183 15 265 8.0 184 15 275 11.9 185 15 285 9.8 186 15 295 7.8 187 15 305 8.9 188 15 315 11.3 189 15 325 14.0 190 15 335 13.2 191 15 345 6.3 193 5 5 15.6 197 5 45 7.7 198 5 55 7.4 199 5 65 7.5 200 5 75 12.5 201 5 85 13.1 202 5 95 14.2 203 5 105 16.1 204 5 115 16.7 205 5 125 10.6 206 5 135 9.0 207 5 145 16.0 208 5 155 14.1 209 5 165 14.4 210 5 175 13.7 211 5 185 14.2 212 5 195 14.6 213 5 205 13.4 214 5 215 14.8 215 5 225 22.5 216 5 235 23.4 217 5 245 28.8 218 5 255 27.2 219 5 265 32.1 220 5 275 24.3 221 5 285 23.9 223 5 305 10.1 224 5 315 10.5 225 5 325 14.9 226 5 335 15.3 227 5 345 15.4 228 5 355 16.4 229 -5 5 39.3 230 -5 15 29.6 233 -5 45 6.0 234 -5 55 7.7 235 -5 65 10.7 236 -5 75 12.3 237 -5 85 13.4 238 -5 95 16.1 239 -5 105 14.3 240 -5 115 8.9 241 -5 125 7.4 242 -5 135 9.5 243 -5 145 13.2 244 -5 155 13.2 245 -5 165 12.6 246 -5 175 8.8 247 -5 185 9.8 248 -5 195 7.5 249 -5 205 5.9 250 -5 215 9.2 251 -5 225 3.2 252 -5 235 4.7 253 -5 245 14.3 254 -5 255 36.3 255 -5 265 47.5 256 -5 275 43.4 257 -5 285 27.1 260 -5 315 5.2 261 -5 325 7.5 262 -5 335 14.0 263 -5 345 39.0 264 -5 355 49.4 265 -15 5 68.7 266 -15 15 31.7 268 -15 35 8.9 269 -15 45 5.8 270 -15 55 9.5 271 -15 65 11.9 272 -15 75 14.2 273 -15 85 17.4 274 -15 95 19.3 275 -15 105 19.9 276 -15 115 5.5 277 -15 125 5.0 278 -15 135 4.0 279 -15 145 10.0 280 -15 155 9.2 281 -15 165 15.2 282 -15 175 15.6 283 -15 185 13.3 284 -15 195 17.3 285 -15 205 12.1 286 -15 215 11.4 287 -15 225 8.9 288 -15 235 8.4 289 -15 245 17.3 290 -15 255 37.1 291 -15 265 45.8 292 -15 275 65.1 293 -15 285 56.4 297 -15 325 12.5 298 -15 335 21.1 299 -15 345 44.1 300 -15 355 67.6 301 -25 5 56.1 302 -25 15 25.8 304 -25 35 16.9 305 -25 45 15.3 306 -25 55 12.9 307 -25 65 18.3 308 -25 75 23.3 309 -25 85 27.5 310 -25 95 32.0 311 -25 105 32.3 312 -25 115 12.9 316 -25 155 13.7 317 -25 165 18.1 318 -25 175 20.6 319 -25 185 18.2 320 -25 195 21.7 321 -25 205 22.4 322 -25 215 28.6 323 -25 225 22.0 324 -25 235 15.0 325 -25 245 12.9 326 -25 255 20.5 327 -25 265 41.7 328 -25 275 60.3 329 -25 285 54.0 332 -25 315 16.6 333 -25 325 19.0 334 -25 335 25.3 335 -25 345 30.0 336 -25 355 46.6 337 -35 5 40.4 338 -35 15 21.0 339 -35 25 21.3 340 -35 35 25.6 341 -35 45 32.7 342 -35 55 23.3 343 -35 65 32.3 344 -35 75 33.1 345 -35 85 36.3 346 -35 95 37.8 347 -35 105 36.8 348 -35 115 24.5 349 -35 125 33.5 350 -35 135 28.8 351 -35 145 21.3 352 -35 155 23.4 353 -35 165 28.9 354 -35 175 23.8 355 -35 185 27.5 356 -35 195 29.7 357 -35 205 29.1 358 -35 215 26.7 359 -35 225 24.8 360 -35 235 34.2 361 -35 245 32.5 363 -35 265 45.2 364 -35 275 48.1 365 -35 285 39.8 367 -35 305 15.2 368 -35 315 21.8 369 -35 325 27.5 370 -35 335 29.4 371 -35 345 30.4 372 -35 355 36.5 378 -45 55 36.7 379 -45 65 30.1 380 -45 75 30.3 381 -45 85 33.3 382 -45 95 21.7 383 -45 105 22.6 384 -45 115 31.1 386 -45 135 38.8 387 -45 145 23.3 388 -45 155 32.5 389 -45 165 31.8 390 -45 175 28.2 391 -45 185 34.6 392 -45 195 35.5 393 -45 205 35.8 400 -45 275 41.4 401 -45 285 30.7 402 -45 295 19.7 403 -45 305 20.5 404 -45 315 28.4 405 -45 325 28.2 406 -45 335 34.0 409 -55 10 34.1 410 -55 30 33.9 411 -55 50 27.2 412 -55 70 38.3 413 -55 90 40.2 414 -55 110 26.8 415 -55 130 25.3 416 -55 150 36.3 417 -55 170 51.5 419 -55 210 32.3 420 -55 230 42.5 421 -55 250 27.3 422 -55 270 22.5 423 -55 290 29.3 424 -55 310 31.9 425 -55 330 29.8 429 -65 50 30.5 430 -65 70 33.3 431 -65 90 35.2 432 -65 110 34.2 433 -65 130 24.1 434 -65 150 31.4 435 -65 170 36.7 436 -65 190 31.4 441 -65 290 37.0 442 -65 310 38.1 449 -75 180 24.8