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Heat IndexTemperature & Dewpoint |
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| Heat Index | Possible Heat Disorder |
| 130°F or greater | Heat stroke highly likely with continued exposure. |
| 105°F to 129°F | Sunstroke, heat cramps, and heat exhaustion likely, and heatstroke possible. |
| 90°F to 104°F | Sunstroke, heat cramps and heat exhaustion possible. |
| 80°F to 89°F | Fatigue possible with prolonged exposure and physical activity. |
| Air °F |
Dewpoint (°F) | Air °F |
||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | ||
| 125 | 129 | 130 | 131 | 132 | 133 | 134 | 134 | 135 | 137 | 138 | 139 | 140 | 141 | 142 | 144 | 145 | 147 | 148 | 150 | 152 | 153 | 155 | 157 | 125 |
| 120 | 124 | 125 | 126 | 127 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 135 | 136 | 137 | 139 | 140 | 141 | 143 | 145 | 146 | 148 | 150 | 152 | 120 |
| 115 | 119 | 120 | 120 | 121 | 122 | 123 | 125 | 124 | 126 | 127 | 128 | 129 | 130 | 131 | 133 | 134 | 136 | 137 | 139 | 140 | 142 | 144 | 146 | 115 |
| 114 | 118 | 119 | 119 | 120 | 121 | 121 | 122 | 123 | 124 | 125 | 127 | 128 | 129 | 130 | 132 | 133 | 134 | 136 | 138 | 139 | 141 | 143 | 145 | 114 |
| 113 | 117 | 117 | 119 | 119 | 120 | 121 | 121 | 122 | 123 | 124 | 126 | 127 | 128 | 129 | 130 | 132 | 133 | 135 | 136 | 138 | 140 | 142 | 144 | 113 |
| 112 | 116 | 116 | 117 | 118 | 119 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 127 | 128 | 129 | 131 | 132 | 134 | 135 | 137 | 139 | 140 | 142 | 112 |
| 111 | 115 | 115 | 116 | 117 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 127 | 128 | 129 | 131 | 132 | 134 | 135 | 137 | 139 | 141 | 111 |
| 110 | 113 | 114 | 115 | 116 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 127 | 128 | 130 | 131 | 133 | 134 | 136 | 138 | 140 | 110 |
| 109 | 112 | 113 | 114 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 127 | 128 | 130 | 131 | 133 | 134 | 136 | 138 | 109 |
| 108 | 111 | 112 | 112 | 113 | 114 | 115 | 116 | 117 | 117 | 118 | 119 | 121 | 122 | 123 | 124 | 126 | 127 | 128 | 130 | 132 | 133 | 135 | 137 | 108 |
| 107 | 110 | 111 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 117 | 118 | 119 | 120 | 122 | 123 | 124 | 126 | 127 | 129 | 130 | 132 | 134 | 136 | 107 |
| 106 | 109 | 110 | 110 | 111 | 112 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 122 | 123 | 124 | 126 | 127 | 129 | 131 | 132 | 134 | 106 |
| 105 | 108 | 108 | 109 | 110 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 122 | 123 | 124 | 126 | 128 | 129 | 131 | 133 | 105 |
| 104 | 104 | 107 | 108 | 109 | 109 | 110 | 111 | 112 | 113 | 114 | 114 | 116 | 117 | 118 | 119 | 120 | 122 | 123 | 125 | 126 | 128 | 130 | 132 | 104 |
| 103 | 105 | 106 | 107 | 107 | 108 | 109 | 110 | 110 | 111 | 112 | 113 | 114 | 115 | 117 | 118 | 120 | 122 | 123 | 123 | 125 | 127 | 128 | 130 | 103 |
| 102 | 104 | 105 | 105 | 106 | 107 | 108 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 118 | 119 | 120 | 122 | 123 | 125 | 126 | 129 | 102 |
| 101 | 103 | 104 | 104 | 105 | 106 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 118 | 119 | 121 | 122 | 124 | 125 | 127 | 101 |
| 100 | 102 | 103 | 103 | 104 | 104 | 105 | 106 | 107 | 108 | 108 | 109 | 110 | 111 | 113 | 114 | 115 | 116 | 118 | 119 | 121 | 122 | 124 | 126 | 100 |
| 99 | 101 | 101 | 102 | 103 | 103 | 104 | 105 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 114 | 115 | 116 | 118 | 119 | 121 | 122 | 124 | 99 |
| 98 | 100 | 100 | 101 | 101 | 102 | 103 | 104 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 115 | 116 | 118 | 119 | 121 | 123 | 98 |
| 97 | 99 | 99 | 100 | 100 | 101 | 102 | 102 | 103 | 104 | 105 | 106 | 106 | 107 | 109 | 110 | 111 | 112 | 113 | 115 | 116 | 118 | 119 | 121 | 97 |
| 96 | 97 | 98 | 99 | 99 | 100 | 100 | 101 | 102 | 103 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 111 | 112 | 113 | 115 | 116 | 118 | 120 | 96 |
| 95 | 96 | 97 | 97 | 98 | 98 | 99 | 100 | 101 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 112 | 113 | 115 | 116 | 118 | 95 |
| 94 | 95 | 96 | 96 | 97 | 97 | 98 | 99 | 99 | 100 | 101 | 102 | 103 | 103 | 104 | 105 | 107 | 108 | 109 | 110 | 112 | 113 | 115 | 116 | 94 |
| 93 | 94 | 95 | 95 | 96 | 96 | 97 | 97 | 98 | 99 | 100 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 108 | 109 | 110 | 112 | 113 | 115 | 93 |
| 92 | 93 | 93 | 94 | 94 | 95 | 96 | 96 | 97 | 98 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 109 | 110 | 112 | 113 | 92 |
| 91 | 92 | 92 | 92 | 93 | 93 | 93 | 94 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 106 | 107 | 108 | 110 | 111 | 91 |
| 90 | 91 | 91 | 92 | 92 | 93 | 93 | 94 | 94 | 95 | 96 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 107 | 108 | 110 | 90 |
| 85 | 86 | 86 | 86 | 87 | 87 | 88 | 88 | 88 | 89 | 89 | 90 | 91 | 91 | 92 | 93 | 94 | 94 | 95 | 96 | 97 | 99 | 100 | 101 | 85 |
| 80 | 81 | 81 | 82 | 82 | 82 | 82 | 83 | 83 | 83 | 84 | 84 | 84 | 85 | 85 | 86 | 86 | 87 | 88 | 89 | 90 | 90 | 80 | ||
| Air °F |
60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | Air °F |
| Dewpoint (°F) | ||||||||||||||||||||||||
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