General Data > Temperature Milestones
The table below shows a selection of temperature milestones. These may be useful for producing display work.
| Fahrenheit (°F) |
Celsius °C) |
Kelvin (K) |
Event, location, phenomena, process |
| |
|
~1032 |
planck temperature, upper limit of temperature |
| |
|
~1016 |
hottest laboratory experiment (Fermilab) |
| |
|
~109 |
core of hottest stars |
| |
|
~107 |
core of the sun |
| |
|
~107 |
nuclear explosion |
| |
|
~106 |
solar corona (the sun's atmosphere) |
| |
|
25,000 |
surface of blue stars |
| |
|
24,000 |
lightning bolt |
| |
|
6000 |
centre of earth |
| |
|
5933 |
tungsten boils |
| |
|
5800 |
surface of the sun |
| |
|
3683 |
tungsten melts |
| |
|
3500 |
surface of red stars |
| 4900 |
2700 |
3000 |
incandescent light bulb |
| 3100 |
1700 |
2000 |
typical flames |
| 2200 |
1200 |
1500 |
fresh lava |
| 1984.32 |
1084.62 |
1357.77 |
copper melting point |
| 1947.52 |
1064.18 |
1337.33 |
gold melting point |
| 1763.20 |
961.78 |
1234.93 |
silver melting point |
| 1250 |
680 |
950 |
dull red hot |
| 1220.58 |
660.323 |
933.473 |
aluminium melting point |
| 930 |
500 |
770 |
incipient red heat |
| 850 |
460 |
730 |
mean surface temperature on Venus |
| 840 |
450 |
720 |
daytime surface temperature on Mercury |
| 787.149 |
419.527 |
692.677 |
zinc melting point |
| 674 |
357 |
630 |
mercury boils |
| 621 |
327 |
600 |
lead melts |
| 574.5875 |
301.4375 |
574.5875 |
fahrenheit and kelvin scales coincide |
| 530 |
280 |
550 |
very hot home oven |
| 451 |
233 |
506 |
paper burns (according to Bradbury) |
| 449.470 |
231.928 |
505.078 |
tin melting point |
| 313.8773 |
156.5985 |
429.7485 |
Indium melting point |
| 212 |
100 |
373.15 |
water boils |
| 136 |
58 |
331 |
hottest surface temperature on earth ( Libya 1922) |
| 98.6 |
37.0 |
310.2 |
human body (traditional US) |
| 98.2 |
36.8 |
309.9 |
human body (revised) |
| 96 |
|
|
human body (according to Fahrenheit) |
| 85.5763 |
29.7646 |
302.9146 |
gallium melts |
| |
|
300 |
quick approximation of room temperature |
| 59 |
15 |
288 |
mean surface temperature on earth |
| 32.018 |
0.01 |
273.16 |
water triple point |
| 32 |
0 |
273.15 |
water freezes |
| 0 |
−18 |
255 |
ice-water-salt mixture (according to Fahrenheit) |
| −37.9019 |
−38.8344 |
234.3156 |
mercury triple point |
| −38 |
−39 |
234 |
mercury melting point |
| −40 |
−40 |
233 |
fahrenheit and celsius scales coincide |
| −56 |
−49 |
220 |
mean surface temperature on Mars |
| −108 |
−78 |
195 |
sublimation point of dry ice |
| −128 |
−89 |
184 |
coldest surface temperature on earth (Vostok 1983) |
| −300 |
−180 |
90 |
nighttime surface temperature on Mercury |
| −279 |
−183 |
90 |
oxygen liquefies |
| −308.8196 |
−189.3442 |
83.8058 |
argon triple point |
| −320 |
−196 |
77 |
nitrogen liquefies |
| |
|
54.3584 |
oxygen triple point |
| |
|
50 |
mean surface temperature on Pluto |
| |
|
24.5561 |
neon triple point |
| |
|
20.3 |
hydrogen liquefies |
| |
|
13.8033 |
hydrogen triple point |
| |
|
4.22 |
helium liquefies |
| |
|
2.73 |
mean temperature of the universe |
| |
|
2.174 |
helium I −- helium II λ point (0.050 atm) |
| |
|
~1 |
coldest point in space (Boomerang Nebula) |
| |
|
0.95 |
helium freezes (26 atm) |
| |
|
10−10 |
coldest laboratory experiment (Helsinki Tech) |
| −459.67 |
−273.15 |
0 |
absolute zero |
Fixed points are denoted in red text.