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 1928

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 1928
1-Month
1.74"
(44.20mm)
2.35"
(59.69mm)
-0.61"
(-15.49mm)
22nd Driest
Driest since:
1930
106th Wettest
Wettest since:
2015
Ties: 1943
Nov–Dec 1928
2-Month
3.89"
(98.81mm)
4.58"
(116.33mm)
-0.69"
(-17.52mm)
26th Driest
Driest since:
1976
102nd Wettest
Wettest since:
2015
Oct–Dec 1928
3-Month
6.12"
(155.45mm)
6.74"
(171.20mm)
-0.62"
(-15.75mm)
34th Driest
Driest since:
1917
94th Wettest
Wettest since:
2015
Sep–Dec 1928
4-Month
8.23"
(209.04mm)
9.23"
(234.44mm)
-1.00"
(-25.40mm)
27th Driest
Driest since:
1939
101st Wettest
Wettest since:
2018
Aug–Dec 1928
5-Month
11.38"
(289.05mm)
11.85"
(300.99mm)
-0.47"
(-11.94mm)
40th Driest
Driest since:
1917
88th Wettest
Wettest since:
2018
Jul–Dec 1928
6-Month
14.45"
(367.03mm)
14.62"
(371.35mm)
-0.17"
(-4.32mm)
53rd Driest
Driest since:
1917
75th Wettest
Wettest since:
2018
Jun–Dec 1928
7-Month
18.73"
(475.74mm)
17.55"
(445.77mm)
1.18"
(29.97mm)
94th Driest
Driest since:
1917
34th Wettest
Wettest since:
2018
Ties: 2021
May–Dec 1928
8-Month
21.07"
(535.18mm)
20.46"
(519.68mm)
0.61"
(15.50mm)
75th Driest
Driest since:
1917
53rd Wettest
Wettest since:
2015
Apr–Dec 1928
9-Month
23.99"
(609.35mm)
22.98"
(583.69mm)
1.01"
(25.66mm)
83rd Driest
Driest since:
1956
45th Wettest
Wettest since:
2015
Ties: 1990
Mar–Dec 1928
10-Month
26.38"
(670.05mm)
25.49"
(647.45mm)
0.89"
(22.60mm)
77th Driest
Driest since:
1956
51st Wettest
Wettest since:
2015
Feb–Dec 1928
11-Month
28.22"
(716.79mm)
27.62"
(701.55mm)
0.60"
(15.24mm)
69th Driest
Driest since:
1910
59th Wettest
Wettest since:
2018
Ties: 1968
Jan–Dec 1928
12-Month
29.50"
(749.30mm)
29.94"
(760.48mm)
-0.44"
(-11.18mm)
43rd Driest
Driest since:
1910
85th Wettest
Wettest since:
1973
Jul 1927–Dec 1928
18-Month
45.32"
(1,151.13mm)
44.58"
(1,132.33mm)
0.74"
(18.80mm)
70th Driest
Driest since:
1954
57th Wettest
Wettest since:
2019
Ties: 1961
Jan 1927–Dec 1928
24-Month
61.56"
(1,563.62mm)
59.90"
(1,521.46mm)
1.66"
(42.16mm)
85th Driest
Driest since:
1931
42nd Wettest
Wettest since:
2019
Jan 1926–Dec 1928
36-Month
92.50"
(2,349.50mm)
89.86"
(2,282.44mm)
2.64"
(67.06mm)
88th Driest
Driest since:
1956
38th Wettest
Wettest since:
2019
Jan 1925–Dec 1928
48-Month
119.46"
(3,034.28mm)
119.78"
(3,042.41mm)
-0.32"
(-8.13mm)
53rd Driest
Driest since:
1956
72nd Wettest
Wettest since:
2019
Jan 1924–Dec 1928
60-Month
145.98"
(3,707.89mm)
149.68"
(3,801.87mm)
-3.70"
(-93.98mm)
30th Driest
Driest since:
1956
94th Wettest
Wettest since:
2019

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