18 is colder than 9.6
-18ºC = -0.4ºF
18 degrees Celsius is 64.4 degrees Fahrenheit.
Skin burns at about 130 degrees F. It ignites at about 480 degrees F though.
The average coldest months' temperature is roughly between -3C and 18C (26F to 65F ), the average warmest months' temperature rising above 10C (50F).See link below for more information.Main feature would be seasonal changes.
18 C is warmer than 15 C.
13C or -13C depending on the order of subtraction
The ideal temperature is between 55F and 58F (13C - 15C). Since this isn't always possible, 40F and 65F (5C - 18C) is still a safe range, as long as it remains constant.
17c to 18c
As meat is mostly water, all meats freeze at around the freezing point of water, or a couple of degrees below. Meat should be kept frozen at -18C or lower, and kept for no longer than 6 months.
18c (64f)
There is a chart here: http://gospain.about.com/od/spanishclimate/ss/weather_6.htm
8c because the warmer the air, the more water it can hold
18c+18c+30=66f
Ice Cystals.
snow and ice crystals
-7 C