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 1912

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
December 1912
1-Month
2.10"
(53.34mm)
2.35"
(59.69mm)
-0.25"
(-6.35mm)
40th Driest
Driest since:
1930
89th Wettest
Wettest since:
2015
Nov–Dec 1912
2-Month
3.62"
(91.95mm)
4.58"
(116.33mm)
-0.96"
(-24.38mm)
18th Driest
Driest since:
1976
111th Wettest
Wettest since:
2015
Oct–Dec 1912
3-Month
5.75"
(146.05mm)
6.74"
(171.20mm)
-0.99"
(-25.15mm)
22nd Driest
Driest since:
1917
107th Wettest
Wettest since:
2015
Sep–Dec 1912
4-Month
8.26"
(209.80mm)
9.23"
(234.44mm)
-0.97"
(-24.64mm)
29th Driest
Driest since:
1939
100th Wettest
Wettest since:
2018
Aug–Dec 1912
5-Month
11.31"
(287.27mm)
11.85"
(300.99mm)
-0.54"
(-13.72mm)
38th Driest
Driest since:
1917
91st Wettest
Wettest since:
2018
Jul–Dec 1912
6-Month
14.30"
(363.22mm)
14.62"
(371.35mm)
-0.32"
(-8.13mm)
45th Driest
Driest since:
1917
84th Wettest
Wettest since:
2018
Ties: 2017
Jun–Dec 1912
7-Month
17.01"
(432.05mm)
17.55"
(445.77mm)
-0.54"
(-13.72mm)
42nd Driest
Driest since:
1917
87th Wettest
Wettest since:
2018
May–Dec 1912
8-Month
19.90"
(505.46mm)
20.46"
(519.68mm)
-0.56"
(-14.22mm)
42nd Driest
Driest since:
1917
87th Wettest
Wettest since:
2015
Apr–Dec 1912
9-Month
23.24"
(590.30mm)
22.98"
(583.69mm)
0.26"
(6.61mm)
64th Driest
Driest since:
1956
65th Wettest
Wettest since:
2015
Ties: 1911
Mar–Dec 1912
10-Month
26.63"
(676.40mm)
25.49"
(647.45mm)
1.14"
(28.95mm)
86th Driest
Driest since:
1956
43rd Wettest
Wettest since:
2015
Feb–Dec 1912
11-Month
28.53"
(724.66mm)
27.62"
(701.55mm)
0.91"
(23.11mm)
78th Driest
Driest since:
1910
51st Wettest
Wettest since:
2018
Jan–Dec 1912
12-Month
30.48"
(774.19mm)
29.94"
(760.48mm)
0.54"
(13.71mm)
73rd Driest
Driest since:
1910
56th Wettest
Wettest since:
1973
Jul 1911–Dec 1912
18-Month
46.70"
(1,186.18mm)
44.58"
(1,132.33mm)
2.12"
(53.85mm)
92nd Driest
Driest since:
1954
36th Wettest
Wettest since:
2019
Jan 1911–Dec 1912
24-Month
60.00"
(1,524.00mm)
59.90"
(1,521.46mm)
0.10"
(2.54mm)
59th Driest
Driest since:
1931
69th Wettest
Wettest since:
2019
Ties: 1961
Jan 1910–Dec 1912
36-Month
84.91"
(2,156.71mm)
89.86"
(2,282.44mm)
-4.95"
(-125.73mm)
13th Driest
Driest to Date
1956
114th Wettest
Wettest since:
2019
Jan 1909–Dec 1912
48-Month
116.10"
(2,948.94mm)
119.78"
(3,042.41mm)
-3.68"
(-93.47mm)
24th Driest
Driest since:
1956
102nd Wettest
Wettest since:
2019
Ties: 1926
Jan 1908–Dec 1912
60-Month
145.90"
(3,705.86mm)
149.68"
(3,801.87mm)
-3.78"
(-96.01mm)
27th Driest
Driest since:
1956
98th Wettest
Wettest since:
2019

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