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 2004

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
December 2004
1-Month
2.18"
(55.37mm)
2.35"
(59.69mm)
-0.17"
(-4.32mm)
44th Driest
Driest since:
1930
85th Wettest
Wettest since:
2015
Ties: 1916
Nov–Dec 2004
2-Month
5.36"
(136.14mm)
4.58"
(116.33mm)
0.78"
(19.81mm)
106th Driest
Driest since:
1976
23rd Wettest
Wettest since:
2015
Oct–Dec 2004
3-Month
8.40"
(213.36mm)
6.74"
(171.20mm)
1.66"
(42.16mm)
119th Driest
Driest since:
1917
10th Wettest
Wettest since:
2015
Sep–Dec 2004
4-Month
11.38"
(289.05mm)
9.23"
(234.44mm)
2.15"
(54.61mm)
119th Driest
Driest since:
1939
10th Wettest
Wettest since:
2018
Aug–Dec 2004
5-Month
14.42"
(366.27mm)
11.85"
(300.99mm)
2.57"
(65.28mm)
122nd Driest
Driest since:
1917
7th Wettest
Wettest since:
2018
Jul–Dec 2004
6-Month
17.47"
(443.74mm)
14.62"
(371.35mm)
2.85"
(72.39mm)
125th Driest
Driest since:
1917
4th Wettest
Wettest since:
2018
Jun–Dec 2004
7-Month
20.98"
(532.89mm)
17.55"
(445.77mm)
3.43"
(87.12mm)
125th Driest
Driest since:
1917
4th Wettest
Wettest since:
2018
May–Dec 2004
8-Month
24.32"
(617.73mm)
20.46"
(519.68mm)
3.86"
(98.05mm)
126th Driest
Driest since:
1917
3rd Wettest
Wettest to Date
2015
Apr–Dec 2004
9-Month
26.82"
(681.23mm)
22.98"
(583.69mm)
3.84"
(97.54mm)
124th Driest
Driest since:
1956
5th Wettest
Wettest since:
2015
Mar–Dec 2004
10-Month
28.83"
(732.28mm)
25.49"
(647.45mm)
3.34"
(84.83mm)
119th Driest
Driest since:
1956
10th Wettest
Wettest since:
2015
Feb–Dec 2004
11-Month
31.28"
(794.51mm)
27.62"
(701.55mm)
3.66"
(92.96mm)
122nd Driest
Driest since:
1910
7th Wettest
Wettest since:
2018
Jan–Dec 2004
12-Month
33.25"
(844.55mm)
29.94"
(760.48mm)
3.31"
(84.07mm)
119th Driest
Driest since:
1910
10th Wettest
Wettest since:
1973
Jul 2003–Dec 2004
18-Month
48.03"
(1,219.96mm)
44.58"
(1,132.33mm)
3.45"
(87.63mm)
107th Driest
Driest since:
1954
21st Wettest
Wettest since:
2019
Jan 2003–Dec 2004
24-Month
63.76"
(1,619.50mm)
59.90"
(1,521.46mm)
3.86"
(98.04mm)
107th Driest
Driest since:
1931
21st Wettest
Wettest since:
2019
Jan 2002–Dec 2004
36-Month
92.81"
(2,357.37mm)
89.86"
(2,282.44mm)
2.95"
(74.93mm)
92nd Driest
Driest since:
1956
35th Wettest
Wettest since:
2019
Jan 2001–Dec 2004
48-Month
121.83"
(3,094.48mm)
119.78"
(3,042.41mm)
2.05"
(52.07mm)
82nd Driest
Driest since:
1956
44th Wettest
Wettest since:
2019
Jan 2000–Dec 2004
60-Month
150.05"
(3,811.27mm)
149.68"
(3,801.87mm)
0.37"
(9.40mm)
62nd Driest
Driest since:
1956
63rd Wettest
Wettest since:
2019

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