Climatological Rankings

NCDC added Alaska climate divisions to its nClimDiv dataset on Friday, March 6, 2015, coincident with the release of the February 2015 monthly monitoring report. For more information on this data, please visit the Alaska Climate Divisions FAQ.

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 Alaska, Agricultural Belts, NWS Regions, and Cities; Palmer Indices are not available for Alaska, NWS Regions, and Cities.

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Contiguous U.S. Average Temperature Rankings, May 2011

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 2011
1-month period
59.13°F
(15.07°C)
60.20°F
(15.67°C)
-1.07°F
(-0.60°C)
22ⁿᵈ Coolest Coolest since: 1995 1917
100ᵗʰ Warmest Warmest since: 2010 1934
Ties: 1979
Mar - May 2011
3-month period
51.39°F
(10.77°C)
50.92°F
(10.51°C)
0.47°F
(0.26°C)
80ᵗʰ Coolest Coolest since: 2008 2015
42ⁿᵈ Warmest Warmest since: 2010 2012
Jan - May 2011
5-month period
43.38°F
(6.32°C)
43.34°F
(6.30°C)
0.04°F
(0.02°C)
64ᵗʰ Coolest Coolest since: 2008 2015
58ᵗʰ Warmest Warmest since: 2010 2012
Ties: 1988
Jun 2010 - May 2011
12-month period
52.80°F
(11.56°C)
52.03°F
(11.13°C)
0.77°F
(0.43°C)
93ʳᵈ Coolest Coolest since: 2010 2015
28ᵗʰ Warmest Warmest since: 2009 2012