The phrase "a temperature below zero" is correct and usable in written English.
It can be used when discussing weather conditions, scientific measurements, or any context where temperatures are being described, particularly in relation to freezing points.
Example: "The forecast predicts a temperature below zero, so make sure to dress warmly before heading outside."
Alternatives: "subzero temperature" or "temperature under zero".
The aims of the present study were to investigate how clipping the winter fur changes skin and rectal temperatures, respiratory rate, and sweating in horses exercising in the field at an ambient temperature below zero and during recovery in the unheated stable.
That would make 2014 the first calendar year -- from Jan . 1to Dec. 31 -- since the NWS started keeping data on the subject in 1952 that didn't include a single day with a recorded low temperature below zero in Anchorage.
With a nod to the weather, Neil Calet, vice president of the association's board of directors, began the evening by reading from a letter Wolfe had written to his mother in 1934, in which he notes that his new overcoat is no match for a temperature of three degrees below zero on the Heights, with "the wind going through you like a knife".
There are occasional tracts of the permafrost (ground that has a temperature below freezing for two or more years) that coats great stretches of northern Siberia.
The conditions at McMurdo were moderate compared with other stations dotted around Antarctica. McMurdo, due to open its doors at the end of the month, was bathed in a temperature barely below zero — around minus 12 degrees Fahrenheit — and its return of sunlight, reliable runway and light winds together had allowed another great escape from the clutch of ice.
Generally, you want to keep any pure alcohol in the liquid at 20percentt or less (and if you have a freezer that allows you to drop the temperature below zero for a few days while you're playing your tricks, that can be useful, too).
Temperature higher than 50 °C is commonly occurring within the study area and temperature below zero occurs very rarely.
This was mostly required on cold days with outside temperature below zero and mainly for L-1 and Cross Match scanners.
Even with below normal temperatures, I doubt they've left for work with the real temperature below zero more than 20 times this winter.
During 1972 1979, there were some days with daily maximum temperature below zero, but no such day during 1990 1995.
Countries had already agreed in 2010 that deep greenhouse gas emissions cuts had to be made to keep a rise in global average temperature below two degrees Celsius above pre-industrial levels this century to avoid more extreme weather, glacier melts, ocean acidification and other harmful impacts.
