National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, December 2013

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
December 2013
1-Month 		2.21"
(56.13mm)		 2.35"
(59.69mm)		 -0.14"
(-3.56mm)		 47th Driest
Driest since:
 1930
82nd Wettest
Wettest since:
 2015
Ties: 1929
Nov–Dec 2013
2-Month 		4.25"
(107.95mm)		 4.58"
(116.33mm)		 -0.33"
(-8.38mm)		 44th Driest
Driest since:
 1976
85th Wettest
Wettest since:
 2015
Oct–Dec 2013
3-Month 		6.48"
(164.59mm)		 6.74"
(171.20mm)		 -0.26"
(-6.61mm)		 45th Driest
Driest since:
 1917
84th Wettest
Wettest since:
 2015
Ties: 1898, 1922
Sep–Dec 2013
4-Month 		9.46"
(240.28mm)		 9.23"
(234.44mm)		 0.23"
(5.84mm)		 68th Driest
Driest since:
 1939
61st Wettest
Wettest since:
 2018
Aug–Dec 2013
5-Month 		12.02"
(305.31mm)		 11.85"
(300.99mm)		 0.17"
(4.32mm)		 69th Driest
Driest since:
 1917
60th Wettest
Wettest since:
 2018
Jul–Dec 2013
6-Month 		15.36"
(390.14mm)		 14.62"
(371.35mm)		 0.74"
(18.79mm)		 85th Driest
Driest since:
 1917
44th Wettest
Wettest since:
 2018
Jun–Dec 2013
7-Month 		18.70"
(474.98mm)		 17.55"
(445.77mm)		 1.15"
(29.21mm)		 93rd Driest
Driest since:
 1917
36th Wettest
Wettest since:
 2018
May–Dec 2013
8-Month 		22.05"
(560.07mm)		 20.46"
(519.68mm)		 1.59"
(40.39mm)		 100th Driest
Driest since:
 1917
29th Wettest
Wettest since:
 2015
Apr–Dec 2013
9-Month 		24.95"
(633.73mm)		 22.98"
(583.69mm)		 1.97"
(50.04mm)		 106th Driest
Driest since:
 1956
23rd Wettest
Wettest since:
 2015
Mar–Dec 2013
10-Month 		26.67"
(677.42mm)		 25.49"
(647.45mm)		 1.18"
(29.97mm)		 89th Driest
Driest since:
 1956
40th Wettest
Wettest since:
 2015
Feb–Dec 2013
11-Month 		28.69"
(728.73mm)		 27.62"
(701.55mm)		 1.07"
(27.18mm)		 82nd Driest
Driest since:
 1910
47th Wettest
Wettest since:
 2018
Jan–Dec 2013
12-Month 		31.06"
(788.92mm)		 29.94"
(760.48mm)		 1.12"
(28.44mm)		 88th Driest
Driest since:
 1910
41st Wettest
Wettest since:
 1973
Jul 2012–Dec 2013
18-Month 		44.81"
(1,138.17mm)		 44.58"
(1,132.33mm)		 0.23"
(5.84mm)		 62nd Driest
Driest since:
 1954
66th Wettest
Wettest since:
 2019
Jan 2012–Dec 2013
24-Month 		58.59"
(1,488.19mm)		 59.90"
(1,521.46mm)		 -1.31"
(-33.27mm)		 42nd Driest
Driest since:
 1931
86th Wettest
Wettest since:
 2019
Jan 2011–Dec 2013
36-Month 		88.69"
(2,252.73mm)		 89.86"
(2,282.44mm)		 -1.17"
(-29.71mm)		 46th Driest
Driest since:
 1956
81st Wettest
Wettest since:
 2019
Jan 2010–Dec 2013
48-Month 		120.06"
(3,049.52mm)		 119.78"
(3,042.41mm)		 0.28"
(7.11mm)		 59th Driest
Driest since:
 1956
67th Wettest
Wettest since:
 2019
Jan 2009–Dec 2013
60-Month 		152.36"
(3,869.94mm)		 149.68"
(3,801.87mm)		 2.68"
(68.07mm)		 77th Driest
Driest since:
 1956
48th Wettest
Wettest since:
 2019

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