Desert Ridge, Arizona Cotton Heat Stress for 2025 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 68.2 ns 123 May 3 70.2 ns 124 May 4 63.4 ns 125 May 5 58.2 ns 126 May 6 59.8 ns 127 May 7 65.1 ns 128 May 8 70.0 ns 129 May 9 75.4 ns 130 May 10 76.2 ns 131 May 11 76.7 ns 132 May 12 75.3 ns 133 May 13 69.6 ns 134 May 14 63.2 ns 135 May 15 64.6 ns 136 May 16 67.3 ns 137 May 17 68.8 ns 138 May 18 66.1 ns 139 May 19 68.1 ns 140 May 20 71.6 ns 141 May 21 72.5 ns 142 May 22 74.8 ns 143 May 23 74.2 ns 144 May 24 72.8 ns 145 May 25 70.9 ns 146 May 26 71.5 ns 147 May 27 71.9 ns 148 May 28 72.7 ns 149 May 29 72.4 ns 150 May 30 73.6 ns 151 May 31 77.5 ns 152 Jun 1 72.1 ns 153 Jun 2 70.9 ns 154 Jun 3 77.1 ns 155 Jun 4 76.3 ns 156 Jun 5 76.5 ns 157 Jun 6 76.6 ns 158 Jun 7 75.9 ns 159 Jun 8 76.3 ns 160 Jun 9 78.8 ns 161 Jun 10 78.8 ns 162 Jun 11 79.7 ns 163 Jun 12 79.6 ns 164 Jun 13 77.9 ns 165 Jun 14 77.9 ns 166 Jun 15 79.9 ns 167 Jun 16 81.4 ns 168 Jun 17 80.0 ns 169 Jun 18 79.3 ns 170 Jun 19 80.9 ns 171 Jun 20 79.1 ns 172 Jun 21 79.2 ns 173 Jun 22 74.9 ns 174 Jun 23 76.1 ns 175 Jun 24 75.9 ns 176 Jun 25 73.9 ns 177 Jun 26 76.2 ns 178 Jun 27 78.4 ns 179 Jun 28 80.7 ns 180 Jun 29 82.3 ns 181 Jun 30 83.2 L1 182 Jul 1 86.2 L2 183 Jul 2 82.9 L1 184 Jul 3 80.8 ns 185 Jul 4 81.0 ns 186 Jul 5 82.1 ns 187 Jul 6 82.4 L1 188 Jul 7 84.3 L1 189 Jul 8 85.3 L1 190 Jul 9 86.1 L2 191 Jul 10 85.8 L1 192 Jul 11 86.1 L2 193 Jul 12 83.9 L1 194 Jul 13 82.1 ns 195 Jul 14 83.5 L1 196 Jul 15 84.1 L1 197 Jul 16 80.3 ns 198 Jul 17 81.5 ns 199 Jul 18 83.0 L1 200 Jul 19 83.2 L1 201 Jul 20 78.9 ns 202 Jul 21 80.3 ns 203 Jul 22 81.7 ns 204 Jul 23 79.3 ns 205 Jul 24 76.5 ns 206 Jul 25 77.0 ns 207 Jul 26 77.2 ns 208 Jul 27 78.8 ns 209 Jul 28 80.9 ns 210 Jul 29 81.8 ns 211 Jul 30 81.8 ns 212 Jul 31 84.2 L1 213 Aug 1 85.6 L1 214 Aug 2 82.6 L1 215 Aug 3 80.1 ns 216 Aug 4 82.1 ns 217 Aug 5 84.2 L1 218 Aug 6 85.5 L1 219 Aug 7 86.9 L2 220 Aug 8 85.9 L1 221 Aug 9 87.2 L2 222 Aug 10 86.6 L2 223 Aug 11 86.6 L2 224 Aug 12 86.1 L2 225 Aug 13 85.6 L1 226 Aug 14 83.1 L1 227 Aug 15 80.4 ns 228 Aug 16 81.5 ns 229 Aug 17 79.2 ns 230 Aug 18 80.0 ns 231 Aug 19 81.5 ns 232 Aug 20 85.7 L1 233 Aug 21 88.0 L2 234 Aug 22 87.6 L2 235 Aug 23 87.3 L2 236 Aug 24 86.9 L2 237 Aug 25 82.0 ns 238 Aug 26 78.9 ns 239 Aug 27 80.3 ns 240 Aug 28 83.2 L1 241 Aug 29 81.9 ns 242 Aug 30 80.1 ns 243 Aug 31 82.0 ns 244 Sep 1 82.2 ns 245 Sep 2 83.8 L1 246 Sep 3 80.8 ns 247 Sep 4 76.5 ns 248 Sep 5 78.8 ns 249 Sep 6 80.7 ns 250 Sep 7 82.2 ns 251 Sep 8 82.4 L1 252 Sep 9 81.9 ns 253 Sep 10 81.2 ns 254 Sep 11 79.9 ns 255 Sep 12 77.4 ns 256 Sep 13 72.6 ns 257 Sep 14 73.0 ns 258 Sep 15 76.0 ns 259 Sep 16 79.5 ns 260 Sep 17 81.6 ns 261 Sep 18 81.3 ns 262 Sep 19 76.0 ns 263 Sep 20 79.8 ns 264 Sep 21 79.8 ns 265 Sep 22 76.3 ns 266 Sep 23 78.6 ns 267 Sep 24 80.7 ns 268 Sep 25 82.8 L1 269 Sep 26 72.9 ns 270 Sep 27 69.1 ns 271 Sep 28 71.0 ns 272 Sep 29 72.1 ns 273 Sep 30 73.8 ns 274 Oct 1 73.4 ns 275 Oct 2 74.9 ns 276 Oct 3 74.8 ns 277 Oct 4 66.6 ns 278 Oct 5 64.1 ns 279 Oct 6 66.9 ns 280 Oct 7 69.5 ns 281 Oct 8 73.2 ns 282 Oct 9 74.8 ns 283 Oct 10 75.4 ns 284 Oct 11 70.7 ns 285 Oct 12 70.9 ns 286 Oct 13 70.6 ns 287 Oct 14 67.3 ns 288 Oct 15 62.2 ns 289 Oct 16 60.4 ns 290 Oct 17 60.5 ns 291 Oct 18 62.4 ns 292 Oct 19 65.0 ns 293 Oct 20 64.6 ns 294 Oct 21 66.0 ns 295 Oct 22 69.0 ns 296 Oct 23 62.6 ns 297 Oct 24 62.5 ns 298 Oct 25 64.0 ns 299 Oct 26 64.2 ns 300 Oct 27 64.6 ns 301 Oct 28 67.0 ns 302 Oct 29 67.1 ns 303 Oct 30 66.5 ns 304 Oct 31 63.2 ns 305 Nov 1 63.0 ns 306 Nov 2 64.3 ns 307 Nov 3 63.6 ns 308 Nov 4 64.3 ns 309 Nov 5 63.9 ns 310 Nov 6 62.0 ns 311 Nov 7 61.5 ns 312 Nov 8 62.2 ns 313 Nov 9 65.4 ns 314 Nov 10 65.8 ns 315 Nov 11 63.9 ns 316 Nov 12 63.2 ns 317 Nov 13 63.2 ns 318 Nov 14 62.3 ns 319 Nov 15 62.7 ns 320 Nov 16 59.4 ns 321 Nov 17 55.7 ns 322 Nov 18 57.4 ns 323 Nov 19 53.6 ns 324 Nov 20 50.7 ns 325 Nov 21 52.7 ns 326 Nov 22 56.0 ns 327 Nov 23 52.4 ns 328 Nov 24 51.6 ns 329 Nov 25 53.6 ns 330 Nov 26 55.6 ns 331 Nov 27 56.7 ns 332 Nov 28 55.7 ns 333 Nov 29 53.1 ns 334 Nov 30 52.6 ns 335 Dec 1 52.0 ns 336 Dec 2 49.6 ns 337 Dec 3 46.9 ns 338 Dec 4 46.6 ns 339 Dec 5 46.1 ns 340 Dec 6 46.7 ns 341 Dec 7 50.2 ns 342 Dec 8 51.5 ns 343 Dec 9 53.0 ns