Yuma Valley, Arizona Cotton Heat Stress for 2020 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 --- ------ --------- 122 May 1 72.5 ns 123 May 2 72.6 ns 124 May 3 71.6 ns 125 May 4 73.1 ns 126 May 5 72.7 ns 127 May 6 74.5 ns 128 May 7 76.6 ns 129 May 8 76.6 ns 130 May 9 76.9 ns 131 May 10 76.9 ns 132 May 11 73.8 ns 133 May 12 71.7 ns 134 May 13 69.2 ns 135 May 14 69.0 ns 136 May 15 70.9 ns 137 May 16 72.8 ns 138 May 17 73.9 ns 139 May 18 74.0 ns 140 May 19 67.2 ns 141 May 20 65.9 ns 142 May 21 67.6 ns 143 May 22 70.8 ns 144 May 23 71.5 ns 145 May 24 70.4 ns 146 May 25 72.8 ns 147 May 26 74.7 ns 148 May 27 76.9 ns 149 May 28 77.8 ns 150 May 29 79.7 ns 151 May 30 78.2 ns 152 May 31 77.7 ns 153 Jun 1 76.7 ns 154 Jun 2 80.0 ns 155 Jun 3 80.7 ns 156 Jun 4 80.8 ns 157 Jun 5 77.6 ns 158 Jun 6 72.2 ns 159 Jun 7 72.4 ns 160 Jun 8 71.5 ns 161 Jun 9 72.6 ns 162 Jun 10 75.4 ns 163 Jun 11 75.6 ns 164 Jun 12 77.9 ns 165 Jun 13 77.3 ns 166 Jun 14 74.5 ns 167 Jun 15 76.5 ns 168 Jun 16 78.2 ns 169 Jun 17 76.9 ns 170 Jun 18 76.9 ns 171 Jun 19 78.0 ns 172 Jun 20 78.3 ns 173 Jun 21 78.0 ns 174 Jun 22 78.1 ns 175 Jun 23 78.7 ns 176 Jun 24 79.9 ns 177 Jun 25 80.6 ns 178 Jun 26 81.1 ns 179 Jun 27 80.6 ns 180 Jun 28 81.2 ns 181 Jun 29 75.7 ns 182 Jun 30 77.7 ns 183 Jul 1 77.3 ns 184 Jul 2 81.4 ns 185 Jul 3 82.9 L1 186 Jul 4 83.3 L1 187 Jul 5 83.5 L1 188 Jul 6 82.1 ns 189 Jul 7 84.1 L1 190 Jul 8 83.4 L1 191 Jul 9 82.0 ns 192 Jul 10 84.8 L1 193 Jul 11 85.3 L1 194 Jul 12 87.0 L2 195 Jul 13 86.6 L2 196 Jul 14 85.3 L1 197 Jul 15 82.6 L1 198 Jul 16 82.0 ns 199 Jul 17 85.0 L1 200 Jul 18 84.0 L1 201 Jul 19 83.2 L1 202 Jul 20 80.9 ns 203 Jul 21 84.4 L1 204 Jul 22 86.3 L2 205 Jul 23 83.5 L1 206 Jul 24 82.5 L1 207 Jul 25 80.6 ns 208 Jul 26 82.8 L1 209 Jul 27 83.3 L1 210 Jul 28 83.0 L1 211 Jul 29 86.5 L2 212 Jul 30 88.0 L2 213 Jul 31 88.9 L2 214 Aug 1 89.1 L2 215 Aug 2 88.3 L2 216 Aug 3 86.1 L2 217 Aug 4 86.7 L2 218 Aug 5 82.2 ns 219 Aug 6 79.9 ns 220 Aug 7 81.1 ns 221 Aug 8 80.9 ns 222 Aug 9 81.1 ns 223 Aug 10 81.7 ns 224 Aug 11 87.6 L2 225 Aug 12 88.5 L2 226 Aug 13 89.0 L2 227 Aug 14 88.2 L2 228 Aug 15 90.1 L2 229 Aug 16 90.4 L2 230 Aug 17 91.1 L2 231 Aug 18 90.2 L2 232 Aug 19 88.9 L2 233 Aug 20 88.7 L2 234 Aug 21 87.1 L2 235 Aug 22 86.9 L2 236 Aug 23 87.5 L2 237 Aug 24 90.2 L2 238 Aug 25 89.9 L2 239 Aug 26 88.0 L2 240 Aug 27 87.4 L2 241 Aug 28 86.6 L2 242 Aug 29 89.6 L2 243 Aug 30 88.1 L2 244 Aug 31 86.6 L2 245 Sep 1 85.9 L1 246 Sep 2 87.6 L2 247 Sep 3 86.8 L2 248 Sep 4 87.1 L2 249 Sep 5 87.2 L2 250 Sep 6 86.9 L2 251 Sep 7 87.7 L2 252 Sep 8 82.9 L1 253 Sep 9 74.5 ns 254 Sep 10 73.4 ns 255 Sep 11 70.1 ns 256 Sep 12 72.6 ns 257 Sep 13 74.6 ns 258 Sep 14 78.5 ns 259 Sep 15 80.7 ns 260 Sep 16 82.4 ns 261 Sep 17 81.4 ns 262 Sep 18 81.0 ns 263 Sep 19 81.3 ns 264 Sep 20 81.3 ns 265 Sep 21 82.2 ns 266 Sep 22 80.6 ns 267 Sep 23 78.7 ns 268 Sep 24 77.8 ns 269 Sep 25 77.2 ns 270 Sep 26 77.3 ns 271 Sep 27 77.4 ns 272 Sep 28 77.3 ns 273 Sep 29 78.9 ns 274 Sep 30 77.0 ns 275 Oct 1 75.9 ns 276 Oct 2 75.7 ns 277 Oct 3 75.6 ns 278 Oct 4 76.7 ns 279 Oct 5 77.8 ns 280 Oct 6 75.8 ns 281 Oct 7 76.0 ns 282 Oct 8 77.7 ns 283 Oct 9 75.6 ns 284 Oct 10 73.3 ns 285 Oct 11 73.5 ns 286 Oct 12 72.8 ns 287 Oct 13 73.6 ns 288 Oct 14 73.5 ns 289 Oct 15 74.7 ns 290 Oct 16 75.4 ns 291 Oct 17 71.1 ns 292 Oct 18 72.3 ns 293 Oct 19 73.1 ns 294 Oct 20 71.3 ns 295 Oct 21 70.6 ns 296 Oct 22 73.0 ns 297 Oct 23 72.8 ns 298 Oct 24 72.7 ns 299 Oct 25 67.8 ns 300 Oct 26 54.9 ns 301 Oct 27 53.6 ns 302 Oct 28 53.1 ns 303 Oct 29 59.3 ns 304 Oct 30 61.5 ns 305 Oct 31 62.6 ns