Climatological Rankings

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, DivisionalClimate Divisions, and RegionalClimate Regions 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

(Hold "Ctrl" to select multiple):

Contiguous U.S. Average Temperature Rankings, May 2009

Record Coolest
Bottom 1/10
Bottom 1/3
Normal
Top 1/3
Top 1/10
Record Warmest

More information on Climatological Rankings

Download: xml csv json
Period Avg Temp 20th Century
Average
Departure Rank Warmest/Coolest
Since
Record
May 2009
1-month period
61.65°F
(16.47°C)
60.20°F
(15.67°C)
1.45°F
(0.80°C)
96ᵗʰ Coolest Coolest since: 2008 1917
25ᵗʰ Warmest Warmest since: 2007 1934
Mar - May 2009
3-month period
51.81°F
(11.01°C)
50.92°F
(10.51°C)
0.89°F
(0.50°C)
90ᵗʰ Coolest Coolest since: 2008 1917
31ˢᵗ Warmest Warmest since: 2007 2012
Ties: 1988
Jan - May 2009
5-month period
44.65°F
(7.03°C)
43.34°F
(6.30°C)
1.31°F
(0.73°C)
99ᵗʰ Coolest Coolest since: 2008 1917
22ⁿᵈ Warmest Warmest since: 2007 2012
Jun 2008 - May 2009
12-month period
52.85°F
(11.58°C)
52.03°F
(11.13°C)
0.82°F
(0.45°C)
97ᵗʰ Coolest Coolest since: 2001 1917
23ʳᵈ Warmest Warmest since: 2008 2012