NCDC transitioned to the nClimDiv dataset on Thursday, March 13, 2014. This was coincident with the release of the February 2014 monthly monitoring report. For details on this transition, please visit our public FTP site and our U.S. Climate Divisional Database site.
Look up monthly U.S., Statewide, Divisional, and Regional Temperature, Precipitation, Degree Days, and Palmer (Drought) rankings for 1-12, 18, 24, 36, 48, 60-month, and Year-to-Date time periods. Data and statistics are as of January 1895.
Please note, Degree Days are not available for Agricultural Belts.
Contiguous U.S. Average Temperature Rankings, May 2010
More information on Climatological Rankings
|Period||Avg Temp||20th Century
|47ᵗʰ Coolest||Coolest since: 2008||1917|
|74ᵗʰ Warmest||Warmest since: 2009||1934|
|Mar - May 2010
|99ᵗʰ Coolest||Coolest since: 2009||1917|
|22ⁿᵈ Warmest||Warmest since: 2007||2012|
|Jan - May 2010
|81ˢᵗ Coolest||Coolest since: 2008||1917|
|40ᵗʰ Warmest||Warmest since: 2009||2012|
|Jun 2009 - May 2010
|56ᵗʰ Coolest||Coolest since: 1997||1917|
|64ᵗʰ Warmest||Warmest since: 2009||2012|