Yuma South, Arizona Cotton Heat Stress for 2023 DOY = Day of year ns = No Stress : Stress Value less than 82.4 L1 = Stress Level 1 : Stress Value from 82.4 to 86 L2 = Stress Level 2 : Stress Value greater than 86 DOY Date Stress --- ------ --------- 121 May 1 67.0 ns 122 May 2 61.7 ns 123 May 3 61.6 ns 124 May 4 60.2 ns 125 May 5 60.7 ns 126 May 6 62.5 ns 127 May 7 64.6 ns 128 May 8 65.9 ns 129 May 9 65.0 ns 130 May 10 63.1 ns 131 May 11 65.0 ns 132 May 12 68.8 ns 133 May 13 71.7 ns 134 May 14 72.9 ns 135 May 15 72.0 ns 136 May 16 73.2 ns 137 May 17 74.0 ns 138 May 18 74.9 ns 139 May 19 75.1 ns 140 May 20 74.1 ns 141 May 21 73.6 ns 142 May 22 72.6 ns 143 May 23 72.9 ns 144 May 24 73.1 ns 145 May 25 72.8 ns 146 May 26 68.3 ns 147 May 27 69.1 ns 148 May 28 71.4 ns 149 May 29 70.9 ns 150 May 30 70.0 ns 151 May 31 67.6 ns 152 Jun 1 69.7 ns 153 Jun 2 71.3 ns 154 Jun 3 72.2 ns 155 Jun 4 73.4 ns 156 Jun 5 71.6 ns 157 Jun 6 69.4 ns 158 Jun 7 70.7 ns 159 Jun 8 71.6 ns 160 Jun 9 71.8 ns 161 Jun 10 71.8 ns 162 Jun 11 71.0 ns 163 Jun 12 69.3 ns 164 Jun 13 72.5 ns 165 Jun 14 74.3 ns 166 Jun 15 74.8 ns 167 Jun 16 75.5 ns 168 Jun 17 77.8 ns 169 Jun 18 76.7 ns 170 Jun 19 75.1 ns 171 Jun 20 74.6 ns 172 Jun 21 73.9 ns 173 Jun 22 71.6 ns 174 Jun 23 69.4 ns 175 Jun 24 72.4 ns 176 Jun 25 75.0 ns 177 Jun 26 75.4 ns 178 Jun 27 75.4 ns 179 Jun 28 74.3 ns 180 Jun 29 74.7 ns 181 Jun 30 78.0 ns 182 Jul 1 80.5 ns 183 Jul 2 80.6 ns 184 Jul 3 82.2 ns 185 Jul 4 82.9 L1 186 Jul 5 79.6 ns 187 Jul 6 79.0 ns 188 Jul 7 77.7 ns 189 Jul 8 80.0 ns 190 Jul 9 80.5 ns 191 Jul 10 85.2 L1 192 Jul 11 87.6 L2 193 Jul 12 87.2 L2 194 Jul 13 87.6 L2 195 Jul 14 88.1 L2 196 Jul 15 89.1 L2 197 Jul 16 89.9 L2 198 Jul 17 89.6 L2 199 Jul 18 88.7 L2 200 Jul 19 88.4 L2 201 Jul 20 88.5 L2 202 Jul 21 89.2 L2 203 Jul 22 88.8 L2 204 Jul 23 88.9 L2 205 Jul 24 87.7 L2 206 Jul 25 89.1 L2 207 Jul 26 89.2 L2 208 Jul 27 89.4 L2 209 Jul 28 88.7 L2 210 Jul 29 88.0 L2 211 Jul 30 89.3 L2 212 Jul 31 83.2 L1 213 Aug 1 85.5 L1 214 Aug 2 87.1 L2 215 Aug 3 83.4 L1 216 Aug 4 80.2 ns 217 Aug 5 81.3 ns 218 Aug 6 86.6 L2 219 Aug 7 89.0 L2 220 Aug 8 85.9 L1 221 Aug 9 85.5 L1 222 Aug 10 86.6 L2 223 Aug 11 84.9 L1 224 Aug 12 86.8 L2 225 Aug 13 84.3 L1 226 Aug 14 86.8 L2 227 Aug 15 87.8 L2 228 Aug 16 89.9 L2 229 Aug 17 88.9 L2 230 Aug 18 89.3 L2 231 Aug 19 78.2 ns 232 Aug 20 77.4 ns 233 Aug 21 77.8 ns 234 Aug 22 79.4 ns 235 Aug 23 81.7 ns 236 Aug 24 85.3 L1 237 Aug 25 85.5 L1 238 Aug 26 85.6 L1 239 Aug 27 86.6 L2 240 Aug 28 85.5 L1 241 Aug 29 87.2 L2 242 Aug 30 89.2 L2 243 Aug 31 88.3 L2 244 Sep 1 82.9 L1 245 Sep 2 80.4 ns 246 Sep 3 82.9 L1 247 Sep 4 75.3 ns 248 Sep 5 77.1 ns 249 Sep 6 78.3 ns 250 Sep 7 81.3 ns 251 Sep 8 82.8 L1 252 Sep 9 85.1 L1 253 Sep 10 86.8 L2 254 Sep 11 84.2 L1 255 Sep 12 85.2 L1 256 Sep 13 78.0 ns 257 Sep 14 76.2 ns 258 Sep 15 78.5 ns 259 Sep 16 81.1 ns 260 Sep 17 77.4 ns 261 Sep 18 78.1 ns 262 Sep 19 78.5 ns 263 Sep 20 77.3 ns 264 Sep 21 72.6 ns 265 Sep 22 74.3 ns 266 Sep 23 77.0 ns 267 Sep 24 74.9 ns 268 Sep 25 74.9 ns 269 Sep 26 74.7 ns 270 Sep 27 74.0 ns 271 Sep 28 75.8 ns 272 Sep 29 77.3 ns 273 Sep 30 70.8 ns 274 Oct 1 65.5 ns 275 Oct 2 64.6 ns 276 Oct 3 66.5 ns 277 Oct 4 69.0 ns 278 Oct 5 71.5 ns 279 Oct 6 72.7 ns 280 Oct 7 72.5 ns 281 Oct 8 75.0 ns 282 Oct 9 76.3 ns 283 Oct 10 77.9 ns 284 Oct 11 71.0 ns 285 Oct 12 68.4 ns 286 Oct 13 64.3 ns 287 Oct 14 64.6 ns 288 Oct 15 67.2 ns 289 Oct 16 71.0 ns 290 Oct 17 71.6 ns 291 Oct 18 72.1 ns 292 Oct 19 73.5 ns 293 Oct 20 74.7 ns 294 Oct 21 74.4 ns 295 Oct 22 72.9 ns 296 Oct 23 67.2 ns 297 Oct 24 65.0 ns 298 Oct 25 69.1 ns 299 Oct 26 68.8 ns 300 Oct 27 69.0 ns 301 Oct 28 64.7 ns 302 Oct 29 57.6 ns 303 Oct 30 53.7 ns 304 Oct 31 56.0 ns 305 Nov 1 56.9 ns 306 Nov 2 57.5 ns 307 Nov 3 57.6 ns 308 Nov 4 59.8 ns 309 Nov 5 61.9 ns 310 Nov 6 64.5 ns 311 Nov 7 63.0 ns 312 Nov 8 58.9 ns 313 Nov 9 54.3 ns 314 Nov 10 52.1 ns 315 Nov 11 53.5 ns 316 Nov 12 56.4 ns 317 Nov 13 57.3 ns 318 Nov 14 57.4 ns 319 Nov 15 57.7 ns 320 Nov 16 59.5 ns 321 Nov 17 59.3 ns 322 Nov 18 62.5 ns 323 Nov 19 58.3 ns 324 Nov 20 54.4 ns 325 Nov 21 56.0 ns 326 Nov 22 53.2 ns 327 Nov 23 51.7 ns 328 Nov 24 55.2 ns 329 Nov 25 51.2 ns 330 Nov 26 46.8 ns 331 Nov 27 49.8 ns 332 Nov 28 52.9 ns 333 Nov 29 50.0 ns 334 Nov 30 52.0 ns 335 Dec 1 50.1 ns 336 Dec 2 48.3 ns 337 Dec 3 49.0 ns 338 Dec 4 50.3 ns 339 Dec 5 53.3 ns 340 Dec 6 54.1 ns 341 Dec 7 53.0 ns 342 Dec 8 50.7 ns 343 Dec 9 47.7 ns