Yuma Valley, Arizona Cotton Heat Stress for 2017 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 66.5 ns 122 May 2 69.7 ns 123 May 3 72.6 ns 124 May 4 74.8 ns 125 May 5 74.2 ns 126 May 6 67.5 ns 127 May 7 57.7 ns 128 May 8 60.9 ns 129 May 9 59.8 ns 130 May 10 63.5 ns 131 May 11 68.4 ns 132 May 12 72.5 ns 133 May 13 71.4 ns 134 May 14 68.5 ns 135 May 15 61.4 ns 136 May 16 62.3 ns 137 May 17 65.9 ns 138 May 18 67.5 ns 139 May 19 68.2 ns 140 May 20 71.2 ns 141 May 21 73.9 ns 142 May 22 74.9 ns 143 May 23 77.6 ns 144 May 24 78.6 ns 145 May 25 74.4 ns 146 May 26 70.1 ns 147 May 27 71.6 ns 148 May 28 72.6 ns 149 May 29 76.0 ns 150 May 30 73.9 ns 151 May 31 72.0 ns 152 Jun 1 72.3 ns 153 Jun 2 71.9 ns 154 Jun 3 76.0 ns 155 Jun 4 77.5 ns 156 Jun 5 77.2 ns 157 Jun 6 75.9 ns 158 Jun 7 74.9 ns 159 Jun 8 76.8 ns 160 Jun 9 79.4 ns 161 Jun 10 76.8 ns 162 Jun 11 72.4 ns 163 Jun 12 70.0 ns 164 Jun 13 72.7 ns 165 Jun 14 73.0 ns 166 Jun 15 76.3 ns 167 Jun 16 77.4 ns 168 Jun 17 78.0 ns 169 Jun 18 79.5 ns 170 Jun 19 81.1 ns 171 Jun 20 83.8 L1 172 Jun 21 83.6 L1 173 Jun 22 83.0 L1 174 Jun 23 82.6 L1 175 Jun 24 83.9 L1 176 Jun 25 84.6 L1 177 Jun 26 85.7 L1 178 Jun 27 81.1 ns 179 Jun 28 79.6 ns 180 Jun 29 79.7 ns 181 Jun 30 79.4 ns 182 Jul 1 79.3 ns 183 Jul 2 81.2 ns 184 Jul 3 84.1 L1 185 Jul 4 83.2 L1 186 Jul 5 84.4 L1 187 Jul 6 86.0 L2 188 Jul 7 87.3 L2 189 Jul 8 87.4 L2 190 Jul 9 85.5 L1 191 Jul 10 85.8 L1 192 Jul 11 86.4 L2 193 Jul 12 85.4 L1 194 Jul 13 86.6 L2 195 Jul 14 87.0 L2 196 Jul 15 87.2 L2 197 Jul 16 87.1 L2 198 Jul 17 87.2 L2 199 Jul 18 86.1 L2 200 Jul 19 85.6 L1 201 Jul 20 85.6 L1 202 Jul 21 85.5 L1 203 Jul 22 86.4 L2 204 Jul 23 85.4 L1 205 Jul 24 84.6 L1 206 Jul 25 83.2 L1 207 Jul 26 82.2 ns 208 Jul 27 85.0 L1 209 Jul 28 87.0 L2 210 Jul 29 85.4 L1 211 Jul 30 84.6 L1 212 Jul 31 88.6 L2 213 Aug 1 87.7 L2 214 Aug 2 87.5 L2 215 Aug 3 87.6 L2 216 Aug 4 87.8 L2 217 Aug 5 87.1 L2 218 Aug 6 86.7 L2 219 Aug 7 84.6 L1 220 Aug 8 84.0 L1 221 Aug 9 84.5 L1 222 Aug 10 87.5 L2 223 Aug 11 88.1 L2 224 Aug 12 89.3 L2 225 Aug 13 87.6 L2 226 Aug 14 82.4 ns 227 Aug 15 79.7 ns 228 Aug 16 77.1 ns 229 Aug 17 79.8 ns 230 Aug 18 81.7 ns 231 Aug 19 83.2 L1 232 Aug 20 84.5 L1 233 Aug 21 83.7 L1 234 Aug 22 84.0 L1 235 Aug 23 86.4 L2 236 Aug 24 83.8 L1 237 Aug 25 83.4 L1 238 Aug 26 84.6 L1 239 Aug 27 88.2 L2 240 Aug 28 88.4 L2 241 Aug 29 86.5 L2 242 Aug 30 86.5 L2 243 Aug 31 86.5 L2 244 Sep 1 88.1 L2 245 Sep 2 84.8 L1 246 Sep 3 79.3 ns 247 Sep 4 81.9 ns 248 Sep 5 85.1 L1 249 Sep 6 87.3 L2 250 Sep 7 85.5 L1 251 Sep 8 80.1 ns 252 Sep 9 79.1 ns 253 Sep 10 82.3 ns 254 Sep 11 85.3 L1 255 Sep 12 83.6 L1 256 Sep 13 85.4 L1 257 Sep 14 77.0 ns 258 Sep 15 75.1 ns 259 Sep 16 76.9 ns 260 Sep 17 77.6 ns 261 Sep 18 76.6 ns 262 Sep 19 76.4 ns 263 Sep 20 76.5 ns 264 Sep 21 72.7 ns 265 Sep 22 66.8 ns 266 Sep 23 68.3 ns 267 Sep 24 69.0 ns 268 Sep 25 67.0 ns 269 Sep 26 65.6 ns 270 Sep 27 67.8 ns 271 Sep 28 71.1 ns 272 Sep 29 71.8 ns 273 Sep 30 72.2 ns 274 Oct 1 73.6 ns 275 Oct 2 70.7 ns 276 Oct 3 73.1 ns 277 Oct 4 71.4 ns 278 Oct 5 69.7 ns 279 Oct 6 70.3 ns 280 Oct 7 71.6 ns 281 Oct 8 70.3 ns 282 Oct 9 67.4 ns 283 Oct 10 66.0 ns 284 Oct 11 65.8 ns 285 Oct 12 68.5 ns 286 Oct 13 69.7 ns 287 Oct 14 70.9 ns 288 Oct 15 70.5 ns 289 Oct 16 69.2 ns 290 Oct 17 70.8 ns 291 Oct 18 70.2 ns 292 Oct 19 71.8 ns 293 Oct 20 69.2 ns 294 Oct 21 65.2 ns 295 Oct 22 65.9 ns 296 Oct 23 68.5 ns 297 Oct 24 77.5 ns 298 Oct 25 72.8 ns 299 Oct 26 67.9 ns 300 Oct 27 68.8 ns 301 Oct 28 66.7 ns 302 Oct 29 67.0 ns 303 Oct 30 68.5 ns 304 Oct 31 67.2 ns 305 Nov 1 66.6 ns