Yuma Valley, 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 68.9 ns 122 May 2 63.6 ns 123 May 3 64.2 ns 124 May 4 61.6 ns 125 May 5 62.0 ns 126 May 6 65.0 ns 127 May 7 67.0 ns 128 May 8 68.7 ns 129 May 9 69.7 ns 130 May 10 64.0 ns 131 May 11 65.8 ns 132 May 12 69.1 ns 133 May 13 71.6 ns 134 May 14 73.0 ns 135 May 15 72.9 ns 136 May 16 73.9 ns 137 May 17 74.0 ns 138 May 18 74.3 ns 139 May 19 75.5 ns 140 May 20 75.5 ns 141 May 21 73.8 ns 142 May 22 73.8 ns 143 May 23 72.9 ns 144 May 24 74.4 ns 145 May 25 73.4 ns 146 May 26 71.0 ns 147 May 27 71.2 ns 148 May 28 71.5 ns 149 May 29 72.0 ns 150 May 30 71.2 ns 151 May 31 69.3 ns 152 Jun 1 70.5 ns 153 Jun 2 71.8 ns 154 Jun 3 72.8 ns 155 Jun 4 74.1 ns 156 Jun 5 72.8 ns 157 Jun 6 71.6 ns 158 Jun 7 71.0 ns 159 Jun 8 72.0 ns 160 Jun 9 72.2 ns 161 Jun 10 71.9 ns 162 Jun 11 70.9 ns 163 Jun 12 70.8 ns 164 Jun 13 72.3 ns 165 Jun 14 74.5 ns 166 Jun 15 75.3 ns 167 Jun 16 75.8 ns 168 Jun 17 78.0 ns 169 Jun 18 78.5 ns 170 Jun 19 77.9 ns 171 Jun 20 78.2 ns 172 Jun 21 78.1 ns 173 Jun 22 75.8 ns 174 Jun 23 71.6 ns 175 Jun 24 75.2 ns 176 Jun 25 79.2 ns 177 Jun 26 80.6 ns 178 Jun 27 78.8 ns 179 Jun 28 76.6 ns 180 Jun 29 79.0 ns 181 Jun 30 79.0 ns 182 Jul 1 80.1 ns 183 Jul 2 81.3 ns 184 Jul 3 82.3 ns 185 Jul 4 82.8 L1 186 Jul 5 79.9 ns 187 Jul 6 81.2 ns 188 Jul 7 80.8 ns 189 Jul 8 80.0 ns 190 Jul 9 80.9 ns 191 Jul 10 84.3 L1 192 Jul 11 86.8 L2 193 Jul 12 86.8 L2 194 Jul 13 87.1 L2 195 Jul 14 87.1 L2 196 Jul 15 88.5 L2 197 Jul 16 88.9 L2 198 Jul 17 89.2 L2 199 Jul 18 89.1 L2 200 Jul 19 89.7 L2 201 Jul 20 87.9 L2 202 Jul 21 88.3 L2 203 Jul 22 88.2 L2 204 Jul 23 88.4 L2 205 Jul 24 87.3 L2 206 Jul 25 88.6 L2 207 Jul 26 88.9 L2 208 Jul 27 88.6 L2 209 Jul 28 87.5 L2 210 Jul 29 87.1 L2 211 Jul 30 88.2 L2 212 Jul 31 83.6 L1 213 Aug 1 85.7 L1 214 Aug 2 86.7 L2 215 Aug 3 82.9 L1 216 Aug 4 82.3 ns 217 Aug 5 81.0 ns 218 Aug 6 86.9 L2 219 Aug 7 89.0 L2 220 Aug 8 87.0 L2 221 Aug 9 86.7 L2 222 Aug 10 86.4 L2 223 Aug 11 84.2 L1 224 Aug 12 86.2 L2 225 Aug 13 83.9 L1 226 Aug 14 86.4 L2 227 Aug 15 88.0 L2 228 Aug 16 89.8 L2 229 Aug 17 88.7 L2 230 Aug 18 89.1 L2 231 Aug 19 78.4 ns 232 Aug 20 77.6 ns 233 Aug 21 78.0 ns 234 Aug 22 80.6 ns 235 Aug 23 82.8 L1 236 Aug 24 85.1 L1 237 Aug 25 86.4 L2 238 Aug 26 88.2 L2 239 Aug 27 88.7 L2 240 Aug 28 88.9 L2 241 Aug 29 89.1 L2 242 Aug 30 88.7 L2 243 Aug 31 87.5 L2 244 Sep 1 82.2 ns 245 Sep 2 79.4 ns 246 Sep 3 83.0 L1 247 Sep 4 76.6 ns 248 Sep 5 77.2 ns 249 Sep 6 78.5 ns 250 Sep 7 80.7 ns 251 Sep 8 82.8 L1 252 Sep 9 87.0 L2 253 Sep 10 89.2 L2 254 Sep 11 85.4 L1 255 Sep 12 85.7 L1 256 Sep 13 80.1 ns 257 Sep 14 78.5 ns 258 Sep 15 78.5 ns 259 Sep 16 79.7 ns 260 Sep 17 76.4 ns 261 Sep 18 76.6 ns 262 Sep 19 78.3 ns 263 Sep 20 77.4 ns 264 Sep 21 74.0 ns 265 Sep 22 75.2 ns 266 Sep 23 77.6 ns 267 Sep 24 75.2 ns 268 Sep 25 74.8 ns 269 Sep 26 77.7 ns 270 Sep 27 74.6 ns 271 Sep 28 76.1 ns 272 Sep 29 77.7 ns 273 Sep 30 72.6 ns 274 Oct 1 67.0 ns 275 Oct 2 66.7 ns 276 Oct 3 69.0 ns 277 Oct 4 70.8 ns 278 Oct 5 73.6 ns 279 Oct 6 74.0 ns 280 Oct 7 73.2 ns 281 Oct 8 74.9 ns 282 Oct 9 75.5 ns 283 Oct 10 77.3 ns 284 Oct 11 73.0 ns 285 Oct 12 70.3 ns 286 Oct 13 66.3 ns 287 Oct 14 67.6 ns 288 Oct 15 70.2 ns 289 Oct 16 73.1 ns 290 Oct 17 71.9 ns 291 Oct 18 73.3 ns 292 Oct 19 74.7 ns 293 Oct 20 75.4 ns 294 Oct 21 76.2 ns 295 Oct 22 76.0 ns 296 Oct 23 68.9 ns 297 Oct 24 66.3 ns 298 Oct 25 67.4 ns 299 Oct 26 69.0 ns 300 Oct 27 68.9 ns 301 Oct 28 65.5 ns 302 Oct 29 60.5 ns 303 Oct 30 59.1 ns 304 Oct 31 61.3 ns 305 Nov 1 63.4 ns 306 Nov 2 59.3 ns 307 Nov 3 60.6 ns 308 Nov 4 61.6 ns 309 Nov 5 63.4 ns 310 Nov 6 64.2 ns 311 Nov 7 63.9 ns 312 Nov 8 61.4 ns 313 Nov 9 59.1 ns 314 Nov 10 54.0 ns 315 Nov 11 56.9 ns 316 Nov 12 61.1 ns 317 Nov 13 58.9 ns 318 Nov 14 58.3 ns 319 Nov 15 58.6 ns 320 Nov 16 61.1 ns 321 Nov 17 60.0 ns 322 Nov 18 63.8 ns 323 Nov 19 61.9 ns 324 Nov 20 58.9 ns 325 Nov 21 60.8 ns 326 Nov 22 59.9 ns 327 Nov 23 53.3 ns 328 Nov 24 58.2 ns 329 Nov 25 54.0 ns 330 Nov 26 52.1 ns 331 Nov 27 55.8 ns 332 Nov 28 56.8 ns 333 Nov 29 52.0 ns 334 Nov 30 54.5 ns 335 Dec 1 52.5 ns 336 Dec 2 49.0 ns 337 Dec 3 50.5 ns 338 Dec 4 52.4 ns 339 Dec 5 56.4 ns 340 Dec 6 55.3 ns 341 Dec 7 53.7 ns 342 Dec 8 55.4 ns 343 Dec 9 51.7 ns