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.

February 1930 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
February 1930
1-Month
1.74in
(44.20mm)
2.13in
(54.10mm)
-0.39in24th Driest
Driest since:
1947
108th Wettest
Wettest since:
1998
Jan–Feb 1930
2-Month
4.32in
(109.73mm)
4.45in
(113.03mm)
-0.13in59th Driest
Driest since:
1977
73rd Wettest
Wettest since:
1998
Dec 1929–Feb 1930
3-Month
6.53in
(165.86mm)
6.79in
(172.47mm)
-0.26in48th Driest
Driest since:
1977
83rd Wettest
Wettest since:
2019
Nov 1929–Feb 1930
4-Month
8.49in
(215.65mm)
9.02in
(229.11mm)
-0.53in42nd Driest
Driest since:
1977
89th Wettest
Wettest since:
2019
Oct 1929–Feb 1930
5-Month
11.08in
(281.43mm)
11.18in
(283.97mm)
-0.10in65th Driest
Driest since:
1977
66th Wettest
Wettest since:
2019
Sep 1929–Feb 1930
6-Month
13.83in
(351.28mm)
13.68in
(347.47mm)
0.15in75th Driest
Driest since:
1977
56th Wettest
Wettest since:
2019
Aug 1929–Feb 1930
7-Month
15.63in
(397.00mm)
16.30in
(414.02mm)
-0.67in36th Driest
Driest since:
1977
95th Wettest
Wettest since:
2019
Jul 1929–Feb 1930
8-Month
18.20in
(462.28mm)
19.08in
(484.63mm)
-0.88in35th Driest
Driest since:
1977
96th Wettest
Wettest since:
2019
Jun 1929–Feb 1930
9-Month
20.83in
(529.08mm)
22.00in
(558.80mm)
-1.17in34th Driest
Driest since:
1918, 1977
97th Wettest
Wettest since:
2019
May 1929–Feb 1930
10-Month
24.34in
(618.24mm)
24.91in
(632.71mm)
-0.57in44th Driest
Driest since:
1918
87th Wettest
Wettest since:
2019
Apr 1929–Feb 1930
11-Month
27.27in
(692.66mm)
27.44in
(696.98mm)
-0.17in51st Driest
Driest since:
1931
80th Wettest
Wettest since:
2019
Mar 1929–Feb 1930
12-Month
30.08in
(764.03mm)
29.94in
(760.48mm)
0.14in63rd Driest
Driest since:
1931
68th Wettest
Wettest since:
2019
Sep 1928–Feb 1930
18-Month
42.69in
(1,084.33mm)
43.63in-0.94in42nd Driest
Driest since:
1918
88th Wettest
Wettest since:
2020
Ties: 1899
Mar 1928–Feb 1930
24-Month
60.81in
(1,544.57mm)
59.89in0.92in78th Driest
Driest since:
1935
52nd Wettest
Wettest since:
2020
Mar 1927–Feb 1930
36-Month
91.47in
(2,323.34mm)
89.82in1.65in79th Driest
Driest since:
1957
50th Wettest
Wettest since:
2020
Mar 1926–Feb 1930
48-Month
122.46in
(3,110.48mm)
119.70in2.76in85th Driest
Driest since:
1957
43rd Wettest
Wettest since:
2019
Mar 1925–Feb 1930
60-Month
149.76in
(3,803.90mm)
149.55in0.21in64th Driest
Driest since:
1957
63rd Wettest
Wettest since:
2020

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