Desert Ridge, Arizona Cotton Heat Stress for 2026 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 67.5 ns 122 May 2 72.0 ns 123 May 3 73.6 ns 124 May 4 66.5 ns 125 May 5 62.9 ns 126 May 6 62.3 ns 127 May 7 69.5 ns 128 May 8 72.7 ns 129 May 9 74.9 ns 130 May 10 75.7 ns 131 May 11 77.5 ns 132 May 12 79.1 ns 133 May 13 74.0 ns 134 May 14 74.1 ns 135 May 15 72.1 ns 136 May 16 72.7 ns 137 May 17 71.0 ns 138 May 18 66.6 ns 139 May 19 66.8 ns 140 May 20 67.8 ns 141 May 21 69.2 ns 142 May 22 70.0 ns 143 May 23 72.7 ns 144 May 24 74.9 ns 145 May 25 74.4 ns 146 May 26 72.3 ns 147 May 27 69.1 ns 148 May 28 68.2 ns 149 May 29 66.3 ns 150 May 30 68.0 ns 151 May 31 71.7 ns 152 Jun 1 74.6 ns 153 Jun 2 76.6 ns 154 Jun 3 76.7 ns 155 Jun 4 79.3 ns 156 Jun 5 78.6 ns 157 Jun 6 77.5 ns 158 Jun 7 77.0 ns 159 Jun 8 75.4 ns 160 Jun 9 74.8 ns 161 Jun 10 76.3 ns 162 Jun 11 79.3 ns 163 Jun 12 81.5 ns 164 Jun 13 83.1 L1 165 Jun 14 84.9 L1 166 Jun 15 84.2 L1 167 Jun 16 83.4 L1 168 Jun 17 84.7 L1 169 Jun 18 82.0 ns 170 Jun 19 78.9 ns 171 Jun 20 76.9 ns 172 Jun 21 76.0 ns 173 Jun 22 77.5 ns 174 Jun 23 82.1 ns 175 Jun 24 83.5 L1 176 Jun 25 84.9 L1 177 Jun 26 84.1 L1 178 Jun 27 80.3 ns 179 Jun 28 77.7 ns 180 Jun 29 75.7 ns 181 Jun 30 74.2 ns 182 Jul 1 73.7 ns 183 Jul 2 74.1 ns 184 Jul 3 77.0 ns 185 Jul 4 77.6 ns 186 Jul 5 81.8 ns 187 Jul 6 83.2 L1 188 Jul 7 84.6 L1