Too Hot to Handle!

Posted October, 1997

Coded by Warren LeMay, Newton #201

Music Control

Relative Humidity plays tricks on your body. In the summer it can make you feel much hotter than the actual temperature, and it escalates the liklihood of heat stress. For example, if you go walking when the air temperature is a tolerable 85 degrees with the huidity at 90%, it is the equivalent to exercising at 102 degrees.

This chart chows how this works for a range of temperatures and humidity levels. Shaded areas indicate points where exertion may be dangerous.

Risk of heat exhaustion

Risk of heat stroke

High risk of heat stroke

RH	Air Temperature
RH	70	75	80	85	90	95	100	105	110	115	120
30%	67	73	78	84	90	96	104	113	123	135	148
40%	68	74	79	86	93	101	110	123	137	151
50%	69	75	81	88	96	107	120	135	150
60%	70	76	82	90	100	114	132	149
70%	70	77	85	93	106	124	144
80%	71	78	86	97	113	136
90%	71	79	88	102	122
100%	72	80	91	108