Harquahala, 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 66.8 ns 122 May 2 69.2 ns 123 May 3 69.3 ns 124 May 4 63.6 ns 125 May 5 57.2 ns 126 May 6 62.8 ns 127 May 7 64.4 ns 128 May 8 69.2 ns 129 May 9 74.1 ns 130 May 10 75.9 ns 131 May 11 76.9 ns 132 May 12 73.8 ns 133 May 13 65.9 ns 134 May 14 62.2 ns 135 May 15 64.4 ns 136 May 16 67.0 ns 137 May 17 68.5 ns 138 May 18 64.2 ns 139 May 19 65.8 ns 140 May 20 69.7 ns 141 May 21 71.5 ns 142 May 22 72.4 ns 143 May 23 73.8 ns 144 May 24 71.3 ns 145 May 25 71.1 ns 146 May 26 71.0 ns 147 May 27 71.1 ns 148 May 28 72.2 ns 149 May 29 71.6 ns 150 May 30 72.7 ns 151 May 31 75.8 ns 152 Jun 1 72.7 ns 153 Jun 2 73.4 ns 154 Jun 3 76.7 ns 155 Jun 4 76.3 ns 156 Jun 5 76.5 ns 157 Jun 6 75.7 ns 158 Jun 7 74.5 ns 159 Jun 8 74.6 ns 160 Jun 9 77.1 ns 161 Jun 10 78.1 ns 162 Jun 11 78.4 ns 163 Jun 12 77.8 ns 164 Jun 13 77.0 ns 165 Jun 14 78.0 ns 166 Jun 15 78.1 ns 167 Jun 16 78.8 ns 168 Jun 17 79.2 ns 169 Jun 18 79.7 ns 170 Jun 19 79.2 ns 171 Jun 20 78.0 ns 172 Jun 21 78.7 ns 173 Jun 22 74.5 ns 174 Jun 23 75.3 ns 175 Jun 24 73.0 ns 176 Jun 25 74.4 ns 177 Jun 26 76.4 ns 178 Jun 27 77.9 ns 179 Jun 28 80.0 ns 180 Jun 29 80.9 ns 181 Jun 30 83.3 L1 182 Jul 1 85.5 L1 183 Jul 2 83.2 L1 184 Jul 3 81.1 ns 185 Jul 4 80.7 ns 186 Jul 5 82.2 ns 187 Jul 6 81.5 ns 188 Jul 7 83.8 L1 189 Jul 8 84.6 L1 190 Jul 9 85.6 L1 191 Jul 10 86.6 L2 192 Jul 11 86.4 L2 193 Jul 12 84.2 L1 194 Jul 13 82.7 L1 195 Jul 14 83.5 L1 196 Jul 15 84.8 L1 197 Jul 16 83.7 L1 198 Jul 17 80.8 ns 199 Jul 18 84.0 L1 200 Jul 19 82.4 L1 201 Jul 20 80.5 ns 202 Jul 21 81.9 ns 203 Jul 22 82.3 ns 204 Jul 23 78.0 ns 205 Jul 24 76.6 ns 206 Jul 25 76.7 ns 207 Jul 26 76.8 ns 208 Jul 27 78.3 ns 209 Jul 28 79.4 ns 210 Jul 29 81.7 ns 211 Jul 30 81.4 ns 212 Jul 31 83.9 L1 213 Aug 1 84.5 L1 214 Aug 2 82.2 ns 215 Aug 3 79.2 ns 216 Aug 4 82.6 L1 217 Aug 5 84.2 L1 218 Aug 6 85.0 L1 219 Aug 7 84.5 L1 220 Aug 8 86.7 L2 221 Aug 9 87.5 L2 222 Aug 10 87.6 L2 223 Aug 11 86.6 L2 224 Aug 12 86.5 L2 225 Aug 13 86.2 L2 226 Aug 14 86.2 L2 227 Aug 15 84.0 L1 228 Aug 16 81.7 ns 229 Aug 17 79.3 ns 230 Aug 18 79.2 ns 231 Aug 19 81.4 ns 232 Aug 20 84.5 L1 233 Aug 21 87.7 L2 234 Aug 22 89.3 L2 235 Aug 23 87.8 L2 236 Aug 24 87.5 L2 237 Aug 25 81.5 ns 238 Aug 26 81.4 ns 239 Aug 27 82.6 L1 240 Aug 28 82.7 L1 241 Aug 29 81.2 ns 242 Aug 30 80.2 ns 243 Aug 31 80.8 ns 244 Sep 1 84.9 L1 245 Sep 2 83.4 L1 246 Sep 3 81.6 ns 247 Sep 4 79.6 ns 248 Sep 5 81.0 ns 249 Sep 6 82.3 ns 250 Sep 7 83.7 L1 251 Sep 8 83.3 L1 252 Sep 9 80.4 ns 253 Sep 10 79.0 ns 254 Sep 11 77.0 ns 255 Sep 12 74.7 ns 256 Sep 13 72.8 ns 257 Sep 14 71.1 ns 258 Sep 15 74.1 ns 259 Sep 16 78.2 ns 260 Sep 17 82.2 ns 261 Sep 18 79.3 ns 262 Sep 19 79.0 ns 263 Sep 20 80.4 ns 264 Sep 21 77.4 ns 265 Sep 22 74.7 ns 266 Sep 23 78.1 ns 267 Sep 24 80.7 ns 268 Sep 25 79.8 ns 269 Sep 26 75.7 ns 270 Sep 27 69.7 ns 271 Sep 28 70.6 ns 272 Sep 29 72.6 ns 273 Sep 30 72.9 ns 274 Oct 1 73.2 ns 275 Oct 2 72.3 ns 276 Oct 3 71.7 ns 277 Oct 4 65.1 ns 278 Oct 5 63.8 ns 279 Oct 6 64.3 ns 280 Oct 7 65.9 ns 281 Oct 8 69.2 ns 282 Oct 9 74.6 ns 283 Oct 10 75.3 ns 284 Oct 11 72.4 ns 285 Oct 12 73.9 ns 286 Oct 13 71.7 ns 287 Oct 14 65.2 ns 288 Oct 15 61.2 ns 289 Oct 16 58.2 ns 290 Oct 17 58.8 ns 291 Oct 18 61.1 ns 292 Oct 19 62.6 ns 293 Oct 20 62.0 ns 294 Oct 21 62.2 ns 295 Oct 22 66.5 ns 296 Oct 23 60.7 ns 297 Oct 24 62.8 ns 298 Oct 25 63.0 ns 299 Oct 26 62.7 ns 300 Oct 27 62.7 ns 301 Oct 28 63.6 ns 302 Oct 29 62.0 ns 303 Oct 30 61.0 ns 304 Oct 31 59.5 ns 305 Nov 1 59.1 ns 306 Nov 2 59.3 ns 307 Nov 3 60.4 ns 308 Nov 4 60.0 ns 309 Nov 5 59.0 ns 310 Nov 6 58.8 ns 311 Nov 7 58.6 ns 312 Nov 8 59.2 ns 313 Nov 9 60.1 ns 314 Nov 10 60.0 ns 315 Nov 11 58.0 ns 316 Nov 12 59.3 ns 317 Nov 13 60.3 ns 318 Nov 14 58.7 ns 319 Nov 15 59.3 ns 320 Nov 16 59.0 ns 321 Nov 17 54.9 ns 322 Nov 18 57.6 ns 323 Nov 19 54.7 ns 324 Nov 20 51.9 ns 325 Nov 21 50.8 ns 326 Nov 22 54.0 ns 327 Nov 23 54.5 ns 328 Nov 24 51.9 ns 329 Nov 25 52.4 ns 330 Nov 26 52.5 ns 331 Nov 27 52.3 ns 332 Nov 28 51.9 ns 333 Nov 29 51.5 ns 334 Nov 30 50.9 ns 335 Dec 1 49.8 ns 336 Dec 2 45.8 ns 337 Dec 3 44.6 ns 338 Dec 4 43.7 ns 339 Dec 5 44.0 ns 340 Dec 6 44.5 ns 341 Dec 7 47.0 ns 342 Dec 8 48.2 ns 343 Dec 9 49.0 ns