Maricopa, Arizona Cotton Heat Stress for 2021 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 72.8 ns 122 May 2 71.3 ns 123 May 3 68.1 ns 124 May 4 69.5 ns 125 May 5 71.5 ns 126 May 6 74.1 ns 127 May 7 72.6 ns 128 May 8 70.1 ns 129 May 9 71.2 ns 130 May 10 70.6 ns 131 May 11 69.0 ns 132 May 12 71.8 ns 133 May 13 73.8 ns 134 May 14 75.4 ns 135 May 15 73.6 ns 136 May 16 69.7 ns 137 May 17 68.3 ns 138 May 18 72.3 ns 139 May 19 75.7 ns 140 May 20 75.5 ns 141 May 21 68.8 ns 142 May 22 61.6 ns 143 May 23 61.8 ns 144 May 24 65.9 ns 145 May 25 71.0 ns 146 May 26 73.3 ns 147 May 27 71.9 ns 148 May 28 74.7 ns 149 May 29 74.7 ns 150 May 30 73.8 ns 151 May 31 76.3 ns 152 Jun 1 78.2 ns 153 Jun 2 79.8 ns 154 Jun 3 79.6 ns 155 Jun 4 78.5 ns 156 Jun 5 78.4 ns 157 Jun 6 76.0 ns 158 Jun 7 74.5 ns 159 Jun 8 74.5 ns 160 Jun 9 76.1 ns 161 Jun 10 75.9 ns 162 Jun 11 75.0 ns 163 Jun 12 76.4 ns 164 Jun 13 80.0 ns 165 Jun 14 83.0 L1 166 Jun 15 86.7 L2 167 Jun 16 86.5 L2 168 Jun 17 87.6 L2 169 Jun 18 88.3 L2 170 Jun 19 88.0 L2 171 Jun 20 88.4 L2 172 Jun 21 86.6 L2 173 Jun 22 85.5 L1 174 Jun 23 79.9 ns 175 Jun 24 81.8 ns 176 Jun 25 84.0 L1 177 Jun 26 82.6 L1 178 Jun 27 85.1 L1 179 Jun 28 85.8 L1 180 Jun 29 84.8 L1 181 Jun 30 83.6 L1 182 Jul 1 85.0 L1 183 Jul 2 86.3 L2 184 Jul 3 84.4 L1 185 Jul 4 84.5 L1 186 Jul 5 86.7 L2 187 Jul 6 86.5 L2 188 Jul 7 86.9 L2 189 Jul 8 89.9 L2 190 Jul 9 90.2 L2 191 Jul 10 85.8 L1 192 Jul 11 85.6 L1 193 Jul 12 87.4 L2 194 Jul 13 87.2 L2 195 Jul 14 82.9 L1 196 Jul 15 83.9 L1 197 Jul 16 82.7 L1 198 Jul 17 84.4 L1 199 Jul 18 84.4 L1 200 Jul 19 86.0 L2 201 Jul 20 87.3 L2 202 Jul 21 87.8 L2 203 Jul 22 84.4 L1 204 Jul 23 75.4 ns 205 Jul 24 75.1 ns 206 Jul 25 76.4 ns 207 Jul 26 81.2 ns 208 Jul 27 83.9 L1 209 Jul 28 84.7 L1 210 Jul 29 85.7 L1 211 Jul 30 84.4 L1 212 Jul 31 82.9 L1 213 Aug 1 86.1 L2 214 Aug 2 87.5 L2 215 Aug 3 87.6 L2 216 Aug 4 86.7 L2 217 Aug 5 88.4 L2 218 Aug 6 87.6 L2 219 Aug 7 86.2 L2 220 Aug 8 87.1 L2 221 Aug 9 80.9 ns 222 Aug 10 80.4 ns 223 Aug 11 80.6 ns 224 Aug 12 81.9 ns 225 Aug 13 83.8 L1 226 Aug 14 79.7 ns 227 Aug 15 84.1 L1 228 Aug 16 85.3 L1 229 Aug 17 78.5 ns 230 Aug 18 80.5 ns 231 Aug 19 80.0 ns 232 Aug 20 81.1 ns 233 Aug 21 81.5 ns 234 Aug 22 81.0 ns 235 Aug 23 79.4 ns 236 Aug 24 80.4 ns 237 Aug 25 83.6 L1 238 Aug 26 84.7 L1 239 Aug 27 85.4 L1 240 Aug 28 85.2 L1 241 Aug 29 85.7 L1 242 Aug 30 85.5 L1 243 Aug 31 78.2 ns 244 Sep 1 78.6 ns 245 Sep 2 80.1 ns 246 Sep 3 81.3 ns 247 Sep 4 82.7 L1 248 Sep 5 83.0 L1 249 Sep 6 83.1 L1 250 Sep 7 85.7 L1 251 Sep 8 85.1 L1 252 Sep 9 84.0 L1 253 Sep 10 84.1 L1 254 Sep 11 84.4 L1 255 Sep 12 81.3 ns 256 Sep 13 81.7 ns 257 Sep 14 82.5 L1 258 Sep 15 81.8 ns 259 Sep 16 79.1 ns 260 Sep 17 80.3 ns 261 Sep 18 79.6 ns 262 Sep 19 79.2 ns 263 Sep 20 75.4 ns 264 Sep 21 74.7 ns 265 Sep 22 75.6 ns 266 Sep 23 77.7 ns 267 Sep 24 72.8 ns 268 Sep 25 75.9 ns 269 Sep 26 70.1 ns 270 Sep 27 72.8 ns 271 Sep 28 74.1 ns 272 Sep 29 72.0 ns 273 Sep 30 70.4 ns 274 Oct 1 67.8 ns 275 Oct 2 67.8 ns 276 Oct 3 71.3 ns 277 Oct 4 73.8 ns 278 Oct 5 71.1 ns 279 Oct 6 69.4 ns 280 Oct 7 71.2 ns 281 Oct 8 72.3 ns 282 Oct 9 69.5 ns 283 Oct 10 63.6 ns 284 Oct 11 63.0 ns 285 Oct 12 54.9 ns 286 Oct 13 52.3 ns 287 Oct 14 56.5 ns 288 Oct 15 58.0 ns 289 Oct 16 63.7 ns 290 Oct 17 64.6 ns 291 Oct 18 64.9 ns 292 Oct 19 61.6 ns 293 Oct 20 61.4 ns 294 Oct 21 62.4 ns 295 Oct 22 63.8 ns 296 Oct 23 64.6 ns 297 Oct 24 65.0 ns 298 Oct 25 67.0 ns 299 Oct 26 61.1 ns 300 Oct 27 56.2 ns 301 Oct 28 58.4 ns 302 Oct 29 61.7 ns 303 Oct 30 61.8 ns 304 Oct 31 63.2 ns 305 Nov 1 62.0 ns