Stratocumulus Average Cloud Amount (%) June (1954 - 1997) Night, Ship Observations Only Global Average: 23.3 Zonal Averages 15 zones Lat.N Average 85 26.8 75 30.9 65 30.5 55 30.5 45 29.7 35 27.2 25 19.2 15 17.1 5 16.1 -5 13.6 -15 20.4 -25 24.2 -35 25.3 -45 28.2 -55 37.8 Grid Box Averages 326 filled boxes Box # Lat.N Lon.E Average 1 85 60 31.8 2 85 180 27.8 3 85 300 18.2 4 75 20 35.8 5 75 60 32.3 6 75 100 22.7 7 75 140 29.1 8 75 180 29.3 9 75 220 37.7 10 75 260 29.5 11 75 300 15.6 12 75 340 30.0 13 65 10 30.6 14 65 30 30.2 15 65 50 28.2 20 65 150 25.1 21 65 170 37.0 22 65 190 33.6 23 65 210 28.3 27 65 290 25.6 28 65 310 24.4 29 65 330 31.9 30 65 350 32.6 31 55 10 20.8 32 55 30 15.7 37 55 130 18.3 38 55 150 21.9 39 55 170 30.8 40 55 190 34.3 41 55 210 34.4 42 55 230 33.5 45 55 290 17.3 46 55 310 29.0 47 55 330 34.8 48 55 350 33.1 49 45 5 9.8 50 45 15 7.6 51 45 25 13.4 52 45 35 14.7 53 45 45 21.3 54 45 55 21.9 62 45 135 20.1 63 45 145 21.8 64 45 155 26.9 65 45 165 29.9 66 45 175 34.3 67 45 185 37.0 68 45 195 36.8 69 45 205 36.8 70 45 215 39.2 71 45 225 40.5 72 45 235 35.1 77 45 285 13.0 78 45 295 13.8 79 45 305 18.2 80 45 315 24.1 81 45 325 32.7 82 45 335 33.7 83 45 345 32.8 84 45 355 21.8 85 35 5 11.0 86 35 15 5.4 87 35 25 4.0 88 35 35 8.2 96 35 115 16.6 97 35 125 16.9 98 35 135 22.3 99 35 145 29.8 100 35 155 33.3 101 35 165 34.5 102 35 175 32.6 103 35 185 32.5 104 35 195 31.3 105 35 205 34.1 106 35 215 41.9 107 35 225 50.2 108 35 235 32.1 109 35 245 36.8 112 35 275 9.6 113 35 285 13.4 114 35 295 17.5 115 35 305 18.9 116 35 315 18.7 117 35 325 22.6 118 35 335 31.5 119 35 345 33.5 120 35 355 13.7 124 25 35 1.2 125 25 45 4.3 126 25 55 3.0 127 25 65 11.1 128 25 75 14.8 129 25 85 21.5 131 25 105 9.1 132 25 115 15.7 133 25 125 20.2 134 25 135 16.7 135 25 145 13.4 136 25 155 13.0 137 25 165 13.4 138 25 175 12.8 139 25 185 12.4 140 25 195 10.7 141 25 205 16.6 142 25 215 35.6 143 25 225 53.6 144 25 235 59.1 145 25 245 31.9 146 25 255 20.2 147 25 265 7.8 148 25 275 7.6 149 25 285 11.7 150 25 295 10.7 151 25 305 8.5 152 25 315 10.0 153 25 325 13.8 154 25 335 28.9 155 25 345 21.9 160 15 35 2.9 161 15 45 4.5 162 15 55 9.0 163 15 65 12.9 164 15 75 15.0 165 15 85 16.0 166 15 95 16.2 167 15 105 10.3 168 15 115 16.0 169 15 125 13.7 170 15 135 11.0 171 15 145 8.7 172 15 155 7.4 173 15 165 7.7 174 15 175 11.7 175 15 185 11.5 176 15 195 12.0 177 15 205 14.2 178 15 215 27.9 179 15 225 37.4 180 15 235 46.3 181 15 245 35.1 182 15 255 16.5 183 15 265 14.8 184 15 275 12.8 185 15 285 12.7 186 15 295 8.6 187 15 305 11.2 188 15 315 15.6 189 15 325 29.1 190 15 335 26.8 191 15 345 10.3 193 5 5 21.4 197 5 45 6.3 198 5 55 7.1 199 5 65 9.3 200 5 75 12.2 201 5 85 12.6 202 5 95 14.0 203 5 105 14.8 204 5 115 14.7 205 5 125 16.1 206 5 135 10.5 207 5 145 16.9 208 5 155 14.2 209 5 165 13.7 210 5 175 16.1 211 5 185 15.3 212 5 195 11.1 213 5 205 11.0 214 5 215 20.6 215 5 225 19.3 216 5 235 22.1 217 5 245 19.8 218 5 255 23.0 219 5 265 26.5 220 5 275 23.8 221 5 285 21.7 223 5 305 15.8 224 5 315 14.9 225 5 325 13.3 226 5 335 17.4 227 5 345 19.3 228 5 355 22.1 229 -5 5 29.3 230 -5 15 18.8 233 -5 45 8.2 234 -5 55 9.2 235 -5 65 8.5 236 -5 75 13.7 237 -5 85 12.6 238 -5 95 11.2 239 -5 105 12.2 240 -5 115 10.0 241 -5 125 11.3 242 -5 135 16.1 243 -5 145 13.7 244 -5 155 15.6 245 -5 165 9.3 246 -5 175 10.5 247 -5 185 6.3 248 -5 195 8.5 249 -5 205 4.5 250 -5 215 6.4 251 -5 225 10.2 252 -5 235 3.5 253 -5 245 9.2 254 -5 255 20.7 255 -5 265 35.4 256 -5 275 42.8 257 -5 285 35.6 260 -5 315 10.3 261 -5 325 10.6 262 -5 335 9.7 263 -5 345 11.6 264 -5 355 23.2 265 -15 5 52.0 266 -15 15 22.2 268 -15 35 6.2 269 -15 45 6.4 270 -15 55 11.6 271 -15 65 12.8 272 -15 75 17.4 273 -15 85 19.2 274 -15 95 20.9 275 -15 105 18.2 276 -15 115 8.3 277 -15 125 3.3 278 -15 135 13.8 279 -15 145 15.0 280 -15 155 20.6 281 -15 165 20.3 282 -15 175 18.0 283 -15 185 16.1 284 -15 195 12.2 285 -15 205 15.7 286 -15 215 13.7 287 -15 225 9.9 288 -15 235 15.3 289 -15 245 13.2 290 -15 255 23.0 291 -15 265 32.8 292 -15 275 56.5 293 -15 285 50.6 297 -15 325 10.7 298 -15 335 16.3 299 -15 345 20.2 300 -15 355 42.1 301 -25 5 41.7 302 -25 15 18.1 304 -25 35 8.2 305 -25 45 12.6 306 -25 55 17.0 307 -25 65 25.8 308 -25 75 27.3 309 -25 85 31.5 310 -25 95 30.7 311 -25 105 23.1 312 -25 115 15.5 316 -25 155 13.3 317 -25 165 21.1 318 -25 175 23.9 319 -25 185 22.7 320 -25 195 22.3 321 -25 205 26.1 322 -25 215 22.7 323 -25 225 22.0 324 -25 235 18.3 325 -25 245 15.9 326 -25 255 19.1 327 -25 265 28.7 328 -25 275 43.2 329 -25 285 44.4 332 -25 315 13.9 333 -25 325 12.8 334 -25 335 23.9 335 -25 345 27.2 336 -25 355 30.1 337 -35 5 31.1 338 -35 15 18.2 339 -35 25 11.8 340 -35 35 12.8 341 -35 45 20.6 342 -35 55 28.7 343 -35 65 29.9 344 -35 75 37.5 345 -35 85 35.4 346 -35 95 32.0 347 -35 105 27.7 348 -35 115 18.7 349 -35 125 19.7 350 -35 135 24.2 351 -35 145 23.3 352 -35 155 16.9 353 -35 165 24.4 354 -35 175 22.7 355 -35 185 21.5 356 -35 195 24.5 357 -35 205 25.5 358 -35 215 25.4 359 -35 225 27.4 360 -35 235 24.7 364 -35 275 36.6 365 -35 285 26.5 367 -35 305 18.5 368 -35 315 18.8 369 -35 325 20.6 370 -35 335 31.5 371 -35 345 29.0 372 -35 355 29.3 387 -45 145 20.1 388 -45 155 31.8 389 -45 165 30.9 390 -45 175 26.1 391 -45 185 28.7 392 -45 195 25.7 394 -45 215 26.1 397 -45 245 29.3 398 -45 255 38.4 400 -45 275 35.0 401 -45 285 41.6 402 -45 295 20.0 403 -45 305 21.1 404 -45 315 22.1 417 -55 170 59.5 423 -55 290 35.2 424 -55 310 31.5 425 -55 330 24.3