Heat Index Table
OK, so everyone knows it gets hot in the Summer… but some people do not think about the effects of humidity on the way our bodies handle heat. For that very reason hospital emergencies routinely deal with people suffering from heat exhaustion in the Summer months.
Ironically, some of the people admitted to hospitals started to feel the effects of heat exhaustion… while cleaning or working on their pools.
The human body cools itself by sweating and if the humidity gets too high, sweat does not evaporate off the skin fast enough and the body starts to retain more heat than it can handle. Therefore, when working outdoors in high heat and high humidity, use caution because the thermometer does not always tell the whole story.
| HEAT INDEX °F (°C) | |||||||||||||
| RELATIVE HUMIDITY (%) | |||||||||||||
| Temp. | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 |
| 110 (47) |
136 (58) |
||||||||||||
| 108
(43) |
130 (54) |
137 (58) |
|||||||||||
| 106 (41) |
124 (51) |
130 (54) |
137 (58) |
||||||||||
| 104 (40) |
119 (48) |
124 (51) |
131 (55) |
137 (58) |
|||||||||
| 102
(39) |
114 (46) |
119 (48) |
124
(51) |
130 (54) |
137 (58) |
||||||||
| 100 (38) |
109 (43) |
114 (46) |
118 (48) |
124 (51) |
129 (54) |
136 (58) |
|||||||
| 98 (37) |
105 (41) |
109 (43) |
113 (45) |
117 (47) |
123 (51) |
128 (53) |
134 (57) |
||||||
| 96
(36) |
101 (38) |
104 (40) |
108
(42) |
112 (44) |
116 (47) |
121
(49) |
126 (52) |
132 (56) |
|||||
| 94 (34) |
97 (36) |
100 (38) |
103 (39) |
106 (41) |
110 (43) |
114 (46) |
119 (48) |
124 (51) |
129 (54) |
135 (57) |
|||
| 92
(33) |
94 (34) |
96 (36) |
99
(37) |
101 (38) |
105 (41) |
108
(42) |
112 (44) |
116 (47) |
121
(49) |
126 (52) |
131 (55) |
||
| 90 (32) |
91 (33) |
93 (34) |
95 (35) |
97 (36) |
100 (38) |
103 (39) |
106 (41) |
109 (43) |
113 (45) |
117 (47) |
122 (50) |
127 (53) |
132 (56) |
| 88 (31) |
88 (31) |
89
(32) |
91 (33) |
93 (34) |
95
(35) |
98 (37) |
100 (38) |
103
(39) |
106 (41) |
110 (43) |
113
(45) |
117 (47) |
121 (49) |
| 86 (30) |
85 (29) |
87
(31) |
88 (31) |
89 (32) |
91
(33) |
93 (34) |
95 (35) |
97
(36) |
100 (38) |
102 (39) |
105
(41) |
108 (42) |
112 (44) |
| 84 (29) |
83 (28) |
84
(29) |
85 (29) |
86 (30) |
88
(31) |
89 (32) |
90 (32) |
92
(33) |
94 (34) |
96 (36) |
98
(37) |
100 (38) |
103 (39) |
| 82 (28) |
81 (27) |
82
(28) |
83 (28) |
84 (29) |
84
(29) |
85 (29) |
86 (30) |
88
(31) |
89 (32) |
90 (32) |
91
(33) |
93 (34) |
95 (35) |
| 80 (27) |
80 (27) |
80
(27) |
81 (27) |
81 (27) |
82
(28) |
82 (28) |
83 (28) |
84
(29) |
84 (29) |
85 (29) |
86
(30) |
86 (30) |
87 (31) |
