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 1908

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
December 1908
1-Month 		1.73"
(43.94mm)		 2.35"
(59.69mm)		 -0.62"
(-15.75mm)		 20th Driest
Driest since:
 1930
109th Wettest
Wettest since:
 2015
Ties: 1999
Nov–Dec 1908
2-Month 		3.40"
(86.36mm)		 4.58"
(116.33mm)		 -1.18"
(-29.97mm)		 12th Driest
Driest since:
 1976
117th Wettest
Wettest since:
 2015
Oct–Dec 1908
3-Month 		5.43"
(137.92mm)		 6.74"
(171.20mm)		 -1.31"
(-33.28mm)		 16th Driest
Driest since:
 1917
113th Wettest
Wettest since:
 2015
Ties: 1935
Sep–Dec 1908
4-Month 		7.26"
(184.40mm)		 9.23"
(234.44mm)		 -1.97"
(-50.04mm)		 8th Driest
Driest since:
 1939
121st Wettest
Wettest since:
 2018
Ties: 1999
Aug–Dec 1908
5-Month 		10.14"
(257.56mm)		 11.85"
(300.99mm)		 -1.71"
(-43.43mm)		 14th Driest
Driest since:
 1917
115th Wettest
Wettest since:
 2018
Jul–Dec 1908
6-Month 		13.15"
(334.01mm)		 14.62"
(371.35mm)		 -1.47"
(-37.34mm)		 21st Driest
Driest since:
 1917
108th Wettest
Wettest since:
 2018
Jun–Dec 1908
7-Month 		16.17"
(410.72mm)		 17.55"
(445.77mm)		 -1.38"
(-35.05mm)		 25th Driest
Driest since:
 1917
104th Wettest
Wettest since:
 2018
May–Dec 1908
8-Month 		20.30"
(515.62mm)		 20.46"
(519.68mm)		 -0.16"
(-4.06mm)		 54th Driest
Driest since:
 1917
75th Wettest
Wettest since:
 2015
Apr–Dec 1908
9-Month 		22.99"
(583.95mm)		 22.98"
(583.69mm)		 0.01"
(0.26mm)		 56th Driest
Driest since:
 1956
73rd Wettest
Wettest since:
 2015
Mar–Dec 1908
10-Month 		25.17"
(639.32mm)		 25.49"
(647.45mm)		 -0.32"
(-8.13mm)		 46th Driest
Driest since:
 1956
83rd Wettest
Wettest since:
 2015
Ties: 2020
Feb–Dec 1908
11-Month 		27.98"
(710.69mm)		 27.62"
(701.55mm)		 0.36"
(9.14mm)		 67th Driest
Driest since:
 1910
62nd Wettest
Wettest since:
 2018
Jan–Dec 1908
12-Month 		29.80"
(756.92mm)		 29.94"
(760.48mm)		 -0.14"
(-3.56mm)		 52nd Driest
Driest since:
 1910
77th Wettest
Wettest since:
 1973
Ties: 1965
Jul 1907–Dec 1908
18-Month 		44.83"
(1,138.68mm)		 44.58"
(1,132.33mm)		 0.25"
(6.35mm)		 63rd Driest
Driest since:
 1954
65th Wettest
Wettest since:
 2019
Jan 1907–Dec 1908
24-Month 		60.74"
(1,542.80mm)		 59.90"
(1,521.46mm)		 0.84"
(21.34mm)		 74th Driest
Driest since:
 1931
54th Wettest
Wettest since:
 2019
Jan 1906–Dec 1908
36-Month 		93.58"
(2,376.93mm)		 89.86"
(2,282.44mm)		 3.72"
(94.49mm)		 97th Driest
Driest since:
 1956
30th Wettest
Wettest since:
 2019
Jan 1905–Dec 1908
48-Month 		126.18"
(3,204.97mm)		 119.78"
(3,042.41mm)		 6.40"
(162.56mm)		 105th Driest
Driest since:
 1956
21st Wettest
Wettest to Date
 2019
Jan 1904–Dec 1908
60-Month 		154.13"
(3,914.90mm)		 149.68"
(3,801.87mm)		 4.45"
(113.03mm)		 92nd Driest
Driest since:
 1956
33rd Wettest
Wettest to Date
 2019
Ties: 2015

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