Table of Fahrenheit Heat Index Values
This table is from the U.S. National Oceanic and Atmospheric Administration.
temperature (°F) | |||||||||||||||||
80 | 82 | 84 | 86 | 88 | 90 | 92 | 94 | 96 | 98 | 100 | 102 | 104 | 106 | 108 | 110 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Relative Humidity (%) | |||||||||||||||||
40 | 80 | 81 | 83 | 85 | 88 | 91 | 94 | 97 | 101 | 105 | 109 | 114 | 119 | 124 | 130 | 136 | |
45 | 80 | 82 | 84 | 87 | 89 | 93 | 96 | 100 | 104 | 109 | 114 | 119 | 124 | 130 | 137 | ||
50 | 81 | 83 | 85 | 88 | 91 | 95 | 99 | 103 | 108 | 113 | 118 | 124 | 131 | 137 | |||
55 | 81 | 84 | 86 | 89 | 93 | 97 | 101 | 106 | 112 | 117 | 124 | 130 | 137 | ||||
60 | 82 | 84 | 88 | 91 | 95 | 100 | 105 | 110 | 116 | 123 | 129 | 137 | |||||
65 | 82 | 85 | 89 | 93 | 98 | 103 | 108 | 114 | 121 | 128 | 136 | ||||||
70 | 83 | 86 | 90 | 95 | 100 | 105 | 112 | 119 | 126 | 134 | |||||||
75 | 84 | 88 | 92 | 97 | 103 | 109 | 116 | 124 | 132 | ||||||||
80 | 84 | 89 | 94 | 100 | 106 | 113 | 121 | 129 | |||||||||
85 | 85 | 90 | 96 | 102 | 110 | 117 | 126 | 135 | |||||||||
90 | 86 | 91 | 98 | 105 | 113 | 122 | 131 | ||||||||||
95 | 86 | 93 | 100 | 108 | 117 | 127 | |||||||||||
100 | 87 | 95 | 103 | 112 | 121 | 132 |
The Heat Index is a measure of how hot it really feels when relative humidity is factored with the actual air temperature.
To find the Heat Index temperature, look at the Heat Index chart above. For example, if the air temperature is 96°F and the relative humidity is 65%, the heat index—how hot it feels—is 121°F.
Read more about this topic: Heat Index
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