The hottest temperature ever recorded was 159.3 F (70.7 C) and the coldest temperature was minus 128.6 F (minus 89.2 C). Nineteen of the 20 warmest years all have occurred since 2001, with the exception of 1998. This graph illustrates the change in global surface temperature relative to 1951-1980 average temperatures. These records clearly show that the first decade of the 21st century was the warmest since … That change is in the mean global temperature that has been calculated for each year since 1880. (Copernicus Climate Change Service) By Andrew Freedman. The average position of the upper-level ridges of high pressure and troughs of low pressure—depicted by positive and negative 500-millibar height anomalies on the January 2020 map—is generally reflected by areas of positive and negative temperature anomalies at the … Prior to February 2020, the preceding January was the hottest January ever recorded on planet Earth as well. Figure 2: CO2concentration and temperature over 800,000 years Surface air temperature anomaly mean 1000 years, °C Source: See footnote 2, J.P. Morgan CO2 Temperature-0.8-0.5-0.3 0.0 0.3 0.5 0.8 1.0 1850 1870 1890 1910 1930 1950 1970 1990 2010 °C difference relative to 1961-1990 average Figure 3: Global mean temperature anomalies

The history of average global temperature is based on data gathered around the world at weather stations, on ships and by satellites.

Temperature.
The earth's average temperature rose by 0.8 °C (1.5 °F) during the last century. The year 2016 ranks as the warmest on record.

The high mean temperature value for Australia was mainly driven by very warm minimum (nighttime) temperatures. The February national minimum temperature departure from average of +1.21°C (+2.18°F) was the highest since 2007 and … Australia's February 2020 national temperature was 0.97°C (1.75°F) above the 1961–90 average—the 10th warmest February in the nation's 111-year temperature record. These include the time of day, the time of year, and where the temperatures measurements are being taken. Andrew Freedman. Global surface air temperature anomalies during April 2020 when compared with the 1981-2010 average. In the atmosphere, 500-millibar height pressure anomalies correlate well with temperatures at the Earth's surface. The average temperature on Earth is 61 degrees F (16 C). The average temperature on the surface of Earth depends on a number of factors.