Safford, 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 65.3 ns 122 May 2 65.5 ns 123 May 3 68.0 ns 124 May 4 66.1 ns 125 May 5 61.6 ns 126 May 6 59.9 ns 127 May 7 63.0 ns 128 May 8 69.9 ns 129 May 9 72.8 ns 130 May 10 72.4 ns 131 May 11 73.0 ns 132 May 12 76.0 ns 133 May 13 73.6 ns 134 May 14 72.7 ns 135 May 15 71.4 ns 136 May 16 69.3 ns 137 May 17 69.9 ns 138 May 18 67.6 ns 139 May 19 69.3 ns 140 May 20 69.0 ns 141 May 21 68.3 ns 142 May 22 69.3 ns 143 May 23 70.2 ns 144 May 24 74.4 ns 145 May 25 70.3 ns 146 May 26 68.7 ns 147 May 27 69.1 ns 148 May 28 69.1 ns 149 May 29 66.8 ns 150 May 30 68.9 ns 151 May 31 70.3 ns 152 Jun 1 73.2 ns 153 Jun 2 76.4 ns 154 Jun 3 73.7 ns 155 Jun 4 73.9 ns 156 Jun 5 75.8 ns 157 Jun 6 76.1 ns 158 Jun 7 76.5 ns 159 Jun 8 75.5 ns 160 Jun 9 78.1 ns 161 Jun 10 76.9 ns 162 Jun 11 76.7 ns 163 Jun 12 79.6 ns 164 Jun 13 82.1 ns 165 Jun 14 80.0 ns 166 Jun 15 77.4 ns 167 Jun 16 79.6 ns 168 Jun 17 80.8 ns 169 Jun 18 78.3 ns 170 Jun 19 77.7 ns 171 Jun 20 77.4 ns 172 Jun 21 76.2 ns 173 Jun 22 76.5 ns 174 Jun 23 81.6 ns 175 Jun 24 82.2 ns 176 Jun 25 78.4 ns 177 Jun 26 79.8 ns 178 Jun 27 81.5 ns 179 Jun 28 78.6 ns 180 Jun 29 77.8 ns 181 Jun 30 77.2 ns 182 Jul 1 74.5 ns 183 Jul 2 73.3 ns 184 Jul 3 73.8 ns 185 Jul 4 76.5 ns 186 Jul 5 79.3 ns 187 Jul 6 80.2 ns 188 Jul 7 80.0 ns