National Rankings

National Data Info
Please note, 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.

July 1928 Precipitation Rankings

View Period (Months):
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
PeriodValue
1901-2000
Mean
AnomalyRank
(1895-2025)
Driest/Wettest
Since
Record
July 1928
1-Month
3.06in
(77.72mm)
2.78in
(70.61mm)
0.28in104th Driest
Driest since:
1930
27th Wettest
Wettest since:
1950, 1958
Jun–Jul 1928
2-Month
7.34in
(186.44mm)
5.70in
(144.78mm)
1.64in130th Driest
Driest since:
1930
1st WettestWettest to Date1928
May–Jul 1928
3-Month
9.68in
(245.87mm)
8.61in
(218.69mm)
1.07in117th Driest
Driest since:
1988
14th Wettest
Wettest since:
2015
Apr–Jul 1928
4-Month
12.60in
(320.04mm)
11.13in
(282.70mm)
1.47in118th Driest
Driest since:
1934
13th Wettest
Wettest since:
2015
Mar–Jul 1928
5-Month
14.98in
(380.49mm)
13.63in
(346.20mm)
1.35in111th Driest
Driest since:
1934, 1936
20th Wettest
Wettest since:
1973
Feb–Jul 1928
6-Month
16.82in
(427.23mm)
15.77in
(400.56mm)
1.05in98th Driest
Driest since:
1934
33rd Wettest
Wettest since:
2019
Jan–Jul 1928
7-Month
18.10in
(459.74mm)
18.08in
(459.23mm)
0.02in64th Driest
Driest since:
1934
67th Wettest
Wettest since:
2019
Dec 1927–Jul 1928
8-Month
20.78in
(527.81mm)
20.42in
(518.67mm)
0.36in66th Driest
Driest since:
1931
64th Wettest
Wettest since:
2019
Nov 1927–Jul 1928
9-Month
23.52in
(597.41mm)
22.65in
(575.31mm)
0.87in80th Driest
Driest since:
1934
50th Wettest
Wettest since:
2019
Oct 1927–Jul 1928
10-Month
25.87in
(657.10mm)
24.82in
(630.43mm)
1.05in87th Driest
Driest since:
1934
43rd Wettest
Wettest since:
2019
Sep 1927–Jul 1928
11-Month
28.35in
(720.09mm)
27.31in
(693.67mm)
1.04in85th Driest
Driest since:
1934
45th Wettest
Wettest since:
2019
Ties: 1922
Aug 1927–Jul 1928
12-Month
31.06in
(788.92mm)
29.93in
(760.22mm)
1.13in89th Driest
Driest since:
1918
41st Wettest
Wettest since:
2019
Feb 1927–Jul 1928
18-Month
48.36in
(1,228.34mm)
45.72in2.64in104th Driest
Driest since:
1931
26th Wettest
Wettest since:
2019
Aug 1926–Jul 1928
24-Month
64.59in
(1,640.59mm)
59.89in4.70in114th Driest
Driest since:
1918
15th WettestWettest to Date2020
Aug 1925–Jul 1928
36-Month
92.79in
(2,356.87mm)
89.83in2.96in91st Driest
Driest since:
1956
37th Wettest
Wettest since:
2019
Aug 1924–Jul 1928
48-Month
118.65in
(3,013.71mm)
119.71in-1.06in50th Driest
Driest since:
1956
77th Wettest
Wettest since:
2019
Aug 1923–Jul 1928
60-Month
147.51in
(3,746.75mm)
149.56in-2.05in42nd Driest
Driest since:
1934
84th Wettest
Wettest since:
2019

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