April 2017 was the second-warmest April ever recorded: NASA
April 2017 was the second-warmest April in 137 years of modern record-keeping of average global temperatures, according to NASA's Goddard Institute for Space Studies (GISS). The temperature in April 2017 was 0.18ÂºC cooler than in 2016, which was hottest on record, 1.06ÂºC warmer than the month's mean temperature. GISS assembles data from about 6,300 meteorological stations for its monthly analysis.