Roll, 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 68.8 ns 122 May 2 63.5 ns 123 May 3 63.4 ns 124 May 4 62.1 ns 125 May 5 60.7 ns 126 May 6 62.6 ns 127 May 7 64.5 ns 128 May 8 65.9 ns 129 May 9 66.7 ns 130 May 10 63.2 ns 131 May 11 65.9 ns 132 May 12 69.1 ns 133 May 13 71.7 ns 134 May 14 71.7 ns 135 May 15 71.8 ns 136 May 16 74.8 ns 137 May 17 75.5 ns 138 May 18 75.0 ns 139 May 19 76.0 ns 140 May 20 76.0 ns 141 May 21 74.7 ns 142 May 22 73.5 ns 143 May 23 71.4 ns 144 May 24 73.1 ns 145 May 25 71.1 ns 146 May 26 69.5 ns 147 May 27 69.4 ns 148 May 28 70.8 ns 149 May 29 69.1 ns 150 May 30 68.5 ns 151 May 31 67.3 ns 152 Jun 1 69.5 ns 153 Jun 2 70.7 ns 154 Jun 3 73.4 ns 155 Jun 4 73.6 ns 156 Jun 5 71.0 ns 157 Jun 6 69.9 ns 158 Jun 7 69.3 ns 159 Jun 8 69.7 ns 160 Jun 9 70.6 ns 161 Jun 10 69.5 ns 162 Jun 11 69.8 ns 163 Jun 12 69.2 ns 164 Jun 13 72.6 ns 165 Jun 14 74.2 ns 166 Jun 15 73.7 ns 167 Jun 16 73.9 ns 168 Jun 17 77.4 ns 169 Jun 18 76.3 ns 170 Jun 19 74.9 ns 171 Jun 20 76.1 ns 172 Jun 21 73.2 ns 173 Jun 22 72.6 ns 174 Jun 23 69.0 ns 175 Jun 24 70.9 ns 176 Jun 25 75.6 ns 177 Jun 26 75.9 ns 178 Jun 27 75.6 ns 179 Jun 28 74.0 ns 180 Jun 29 76.0 ns 181 Jun 30 77.7 ns 182 Jul 1 79.0 ns 183 Jul 2 80.9 ns 184 Jul 3 81.7 ns 185 Jul 4 82.2 ns 186 Jul 5 80.7 ns 187 Jul 6 80.2 ns 188 Jul 7 77.0 ns 189 Jul 8 77.8 ns 190 Jul 9 79.3 ns 191 Jul 10 83.9 L1 192 Jul 11 85.9 L1 193 Jul 12 86.0 L1 194 Jul 13 85.6 L1 195 Jul 14 86.7 L2 196 Jul 15 87.8 L2 197 Jul 16 88.8 L2 198 Jul 17 89.1 L2 199 Jul 18 89.1 L2 200 Jul 19 88.9 L2 201 Jul 20 88.5 L2 202 Jul 21 89.1 L2 203 Jul 22 89.3 L2 204 Jul 23 89.2 L2 205 Jul 24 88.6 L2 206 Jul 25 89.5 L2 207 Jul 26 90.0 L2 208 Jul 27 89.1 L2 209 Jul 28 88.5 L2 210 Jul 29 87.9 L2 211 Jul 30 89.2 L2 212 Jul 31 83.7 L1 213 Aug 1 86.1 L2 214 Aug 2 86.6 L2 215 Aug 3 83.9 L1 216 Aug 4 81.6 ns 217 Aug 5 81.2 ns 218 Aug 6 87.1 L2 219 Aug 7 88.5 L2 220 Aug 8 86.8 L2 221 Aug 9 85.4 L1 222 Aug 10 86.0 L1 223 Aug 11 84.2 L1 224 Aug 12 84.8 L1 225 Aug 13 83.6 L1 226 Aug 14 85.2 L1 227 Aug 15 86.4 L2 228 Aug 16 88.3 L2 229 Aug 17 88.7 L2 230 Aug 18 84.8 L1 231 Aug 19 76.5 ns 232 Aug 20 78.3 ns 233 Aug 21 78.6 ns 234 Aug 22 81.3 ns 235 Aug 23 83.7 L1 236 Aug 24 85.2 L1 237 Aug 25 86.1 L2 238 Aug 26 85.1 L1 239 Aug 27 86.6 L2 240 Aug 28 87.2 L2 241 Aug 29 87.2 L2 242 Aug 30 88.4 L2 243 Aug 31 86.1 L2 244 Sep 1 80.1 ns 245 Sep 2 79.9 ns 246 Sep 3 81.8 ns 247 Sep 4 76.8 ns 248 Sep 5 76.0 ns 249 Sep 6 76.9 ns 250 Sep 7 78.2 ns 251 Sep 8 82.2 ns 252 Sep 9 85.4 L1 253 Sep 10 85.8 L1 254 Sep 11 83.6 L1 255 Sep 12 83.9 L1 256 Sep 13 78.7 ns 257 Sep 14 76.3 ns 258 Sep 15 78.4 ns 259 Sep 16 77.8 ns 260 Sep 17 75.6 ns 261 Sep 18 75.2 ns 262 Sep 19 75.9 ns 263 Sep 20 76.0 ns 264 Sep 21 74.2 ns 265 Sep 22 74.9 ns 266 Sep 23 76.1 ns 267 Sep 24 74.6 ns 268 Sep 25 74.2 ns 269 Sep 26 72.6 ns 270 Sep 27 72.4 ns 271 Sep 28 74.3 ns 272 Sep 29 73.6 ns 273 Sep 30 71.8 ns 274 Oct 1 67.5 ns 275 Oct 2 66.5 ns 276 Oct 3 67.3 ns 277 Oct 4 68.5 ns 278 Oct 5 70.4 ns 279 Oct 6 71.6 ns 280 Oct 7 73.1 ns 281 Oct 8 74.6 ns 282 Oct 9 74.1 ns 283 Oct 10 75.2 ns 284 Oct 11 70.7 ns 285 Oct 12 67.3 ns 286 Oct 13 63.6 ns 287 Oct 14 65.6 ns 288 Oct 15 67.6 ns 289 Oct 16 70.0 ns 290 Oct 17 70.5 ns 291 Oct 18 70.5 ns 292 Oct 19 70.2 ns 293 Oct 20 71.1 ns 294 Oct 21 70.8 ns 295 Oct 22 71.7 ns 296 Oct 23 65.9 ns 297 Oct 24 64.0 ns 298 Oct 25 64.0 ns 299 Oct 26 66.6 ns 300 Oct 27 66.8 ns 301 Oct 28 63.7 ns 302 Oct 29 56.8 ns 303 Oct 30 52.0 ns 304 Oct 31 54.1 ns 305 Nov 1 56.6 ns 306 Nov 2 56.0 ns 307 Nov 3 56.8 ns 308 Nov 4 57.5 ns 309 Nov 5 61.6 ns 310 Nov 6 62.0 ns 311 Nov 7 60.3 ns 312 Nov 8 60.0 ns 313 Nov 9 55.2 ns 314 Nov 10 50.0 ns 315 Nov 11 50.4 ns 316 Nov 12 54.8 ns 317 Nov 13 56.0 ns 318 Nov 14 57.3 ns 319 Nov 15 58.6 ns 320 Nov 16 59.8 ns 321 Nov 17 58.9 ns 322 Nov 18 63.6 ns 323 Nov 19 59.2 ns 324 Nov 20 57.7 ns 325 Nov 21 53.9 ns 326 Nov 22 52.1 ns 327 Nov 23 49.9 ns 328 Nov 24 53.9 ns 329 Nov 25 51.4 ns 330 Nov 26 46.3 ns 331 Nov 27 50.0 ns 332 Nov 28 51.4 ns 333 Nov 29 48.8 ns 334 Nov 30 51.6 ns 335 Dec 1 50.1 ns 336 Dec 2 46.6 ns 337 Dec 3 47.3 ns 338 Dec 4 48.9 ns 339 Dec 5 51.3 ns 340 Dec 6 51.5 ns 341 Dec 7 51.0 ns 342 Dec 8 48.5 ns 343 Dec 9 45.2 ns