Table 1.

UTCI equivalent temperatures categorized in terms of thermal stress.

UTCI range (°C)	Stress category
Above +46	Extreme thermal stress
+38 to +46	Very strong thermal stress
+32 to +38	Strong thermal stress
+26 to +32	Moderate thermal stress
+9 to +26	No thermal stress
+9 to 0	Slight cold stress
0 to −13	Moderate cold stress
−13 to −27	Strong cold stress
−27 to −40	Very strong cold stress
Below −40	Extreme cold stress

Source: Bröde et al. (2012).