The National Oceanic and Atmospheric Administration (NOAA) has maintained records of weather and climate since the late 1800s.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/its-official-march-was-warmest-ever-united-states
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/environment-news-network
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/weather-modifications
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drought
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/storms