Table 2.
Ambient temperature, Wind, and thermal stress indices: WCT and FFT for the months we analyzed: monthly means ± standard deviation (SD), coefficient of variation (CV%), minimum and maximum values. Sample size—41 monthly means (1979–2019).
| Temp [°C] | Wind [m·s−1] | WCT [°C] | FFT [min] | |
|---|---|---|---|---|
| Everest (May) | −26 ± 1 (5.1%) | 16 ± 3 (19.4%) | −45 ± 2 (5.5%) | 6 ± 1 (22.4%) |
| min −29, max −24 | min 11, max 25 | min −50, max −41 | min 3, max 9 | |
| K2 (July) | −21 ± 1 (6.6%) | 15 ± 3 (17.3%) | −37 ± 2 (6.4%) | 11 ± 2 (22.4%) |
| min −24, max −18 | min 8, max 20 | min −42, max −31 | min 7, max 18 | |
| Everest (January) | −36 ± 2 (6.1%) | 42 ± 5 (12.1%) | −66 ± 3 (4.2%) | −2 ± 1 (68.0%) |
| min −40, max −31 | min 33, max 53 | min −72, max −60 | min −4, max 0 | |
| K2 (January) | −45 ± 1 (2.8%) | 27 ± 4 (15.5%) | −76 ± 2 (2.6%) | 1 ± 1 (63.3%) |
| min −48, max −43 | min 20, max 38 | min −82, max −73 | min −1, max 2 | |
| Everest (February) | −36 ± 3 (7.0%) | 40 ± 7 (18.1%) | −66 ± 3 (4.6%) | −1 ± 2 (126.2%) |
| min −40, max −29 | min 26, max 55 | min −72, max −58 | min −5, max 1 | |
| K2 (February) | −45 ± 2 (3.7%) | 27 ± 4 (13.1%) | −75 ± 3 (3.5%) | 1 ± 0 (49.0%) |
| min −48, max −40 | min 17, max 33 | min −81, max −69 | min 0, max 2 |
Temp, temperature; Wind, wind speed; WCT, wind chill equivalent temperature; FFT, facial frostbite time.