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The sharpness and depth of these discontinuities are important for constraining models of composition and temperature in the Earth . Mean daily minimum temperature about average : Perth 's mean minimum temperature in January was 17.3 degrees compared with the long-term average of about 17 degrees . This can create extremely high temperatures in the catalyst and can ultimately damage and destroy the honeycomb or pellets inside the catalyst . This image shows the average sea surface temperatures observed by the Moderate Resolution Imaging Spectroradiometer ( MODIS ) on NASA ’ s Terra satellite in July 2006 compared to the average temperatures in the region from 1985-1997 . Night temperatures in the coastal areas may dip into the 40s ( Fahrenheit ) . Temperatures in January averaged 9 degrees below normal . Because of the higher temperatures in the inner solar system , accretion of ice and gas was inhibited so the planetesimals grew into what is known as the rocky terrestrial planets . Sensitivity is significantly reduced when sea surface temperature in the eastern equatorial Pacific between latitudes 2.25 N and 2.25 N are held at their control simulation values . Following the record low December mean maximum temperature in Perth , the continuing below average temperatures in January have made this the coolest first two months of summer ( December-January ) , in terms of maximum temperatures , since 1922/23 . This will ensure that the temperature in the center of the container drops low enough and fast enough to prevent bacteria growth . The national average temperature in January was the warmest in the 112 years the government has collected data , but February was only slightly warmer than average , so the fact that starts only reversed half the January surge was quite impressive . Medium temperature in January is -5.1 C and in June 12.5 C. There is a spartan resort along the lake . Mean daily minimum temperature - above average : Perth 's mean daily minimum temperature in January was 17.8 degrees compared with the long-term average of about 17 . The winds off the island are quite brutal and temperatures in January frequently dip below freezing . " This is the first time we have seen such high temperatures in January . For example , controlled heating time and temperature in the cooking process ensure that harmful bacteria are destroyed . There is substantial injury to vineyards north of Virginia due to low temperatures in January 2004 . We can see that this data set has 17 variables : precipitation , temperature in January , temperature in July , population over 65 , population per household , education level , percent of housing that is sound ( safe ) , population density , nonwhite population , percent of white color workers , percent of poor , hydrocarbon level , nitrogen oxide level , sulfur dioxide level , humidity , mortality rate , and the city name abbreviation . It seems counterintuitive that a slight increase in temperature in the Arctic could severely impact caribou herds . The lines of iron conspicuously stronger in spots than on the disk were those which were most relatively strengthened at low temperatures in the arc , while the lines which were unaffected or sometimes slightly weakened in spots were those which were prominent at high temperatures in the arc .