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 1963

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 1963
1-Month
1.48"
(37.59mm)
2.35"
(59.69mm)
-0.87"
(-22.10mm)
7th Driest
Driest since:
1930
121st Wettest
Wettest since:
2015
Nov–Dec 1963
2-Month
4.14"
(105.16mm)
4.58"
(116.33mm)
-0.44"
(-11.17mm)
38th Driest
Driest since:
1976
90th Wettest
Wettest since:
2015
Oct–Dec 1963
3-Month
5.10"
(129.54mm)
6.74"
(171.20mm)
-1.64"
(-41.66mm)
11th Driest
Driest since:
1917
117th Wettest
Wettest since:
2015
Sep–Dec 1963
4-Month
7.31"
(185.67mm)
9.23"
(234.44mm)
-1.92"
(-48.77mm)
11th Driest
Driest since:
1939
117th Wettest
Wettest since:
2018
Aug–Dec 1963
5-Month
9.64"
(244.86mm)
11.85"
(300.99mm)
-2.21"
(-56.13mm)
10th Driest
Driest since:
1917
118th Wettest
Wettest since:
2018
Jul–Dec 1963
6-Month
12.33"
(313.18mm)
14.62"
(371.35mm)
-2.29"
(-58.17mm)
10th Driest
Driest since:
1917
118th Wettest
Wettest since:
2018
Jun–Dec 1963
7-Month
15.27"
(387.86mm)
17.55"
(445.77mm)
-2.28"
(-57.91mm)
13th Driest
Driest since:
1917
115th Wettest
Wettest since:
2018
May–Dec 1963
8-Month
17.63"
(447.80mm)
20.46"
(519.68mm)
-2.83"
(-71.88mm)
8th Driest
Driest since:
1917
120th Wettest
Wettest since:
2015
Apr–Dec 1963
9-Month
19.93"
(506.22mm)
22.98"
(583.69mm)
-3.05"
(-77.47mm)
8th Driest
Driest since:
1956
120th Wettest
Wettest since:
2015
Mar–Dec 1963
10-Month
22.40"
(568.96mm)
25.49"
(647.45mm)
-3.09"
(-78.49mm)
10th Driest
Driest since:
1956
118th Wettest
Wettest since:
2015
Feb–Dec 1963
11-Month
24.13"
(612.90mm)
27.62"
(701.55mm)
-3.49"
(-88.65mm)
10th Driest
Driest since:
1910
118th Wettest
Wettest since:
2018
Jan–Dec 1963
12-Month
25.70"
(652.78mm)
29.94"
(760.48mm)
-4.24"
(-107.70mm)
5th Driest
Driest since:
1910
123rd Wettest
Wettest since:
1973
Jul 1962–Dec 1963
18-Month
39.39"
(1,000.51mm)
44.58"
(1,132.33mm)
-5.19"
(-131.82mm)
6th Driest
Driest since:
1954
121st Wettest
Wettest since:
2019
Jan 1962–Dec 1963
24-Month
54.30"
(1,379.22mm)
59.90"
(1,521.46mm)
-5.60"
(-142.24mm)
7th Driest
Driest since:
1931
120th Wettest
Wettest since:
2019
Jan 1961–Dec 1963
36-Month
85.55"
(2,172.97mm)
89.86"
(2,282.44mm)
-4.31"
(-109.47mm)
17th Driest
Driest since:
1956
109th Wettest
Wettest since:
2019
Jan 1960–Dec 1963
48-Month
114.30"
(2,903.22mm)
119.78"
(3,042.41mm)
-5.48"
(-139.19mm)
14th Driest
Driest since:
1956
111th Wettest
Wettest since:
2019
Jan 1959–Dec 1963
60-Month
144.90"
(3,680.46mm)
149.68"
(3,801.87mm)
-4.78"
(-121.41mm)
21st Driest
Driest since:
1956
103rd Wettest
Wettest since:
2019

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