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.

October 1984 Precipitation Rankings

View Period (Months):
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
PeriodValue
1901-2000
Mean
AnomalyRank
(1895-2024)
Driest/Wettest
Since
Record
October 1984
1-Month
3.65in
(92.71mm)
2.16in
(54.86mm)
1.49in128th Driest
Driest since:
1952
3rd Wettest
Wettest since:
2009
Sep–Oct 1984
2-Month
5.56in
(141.22mm)
4.65in
(118.11mm)
0.91in111th Driest
Driest since:
1952
20th Wettest
Wettest since:
2018
Aug–Oct 1984
3-Month
7.99in
(202.95mm)
7.26in
(184.40mm)
0.73in101st Driest
Driest since:
1952
30th Wettest
Wettest since:
2018
Jul–Oct 1984
4-Month
10.82in
(274.83mm)
10.04in
(255.02mm)
0.78in100th Driest
Driest since:
1952
31st Wettest
Wettest since:
1941
Jun–Oct 1984
5-Month
13.75in
(349.25mm)
12.96in
(329.18mm)
0.79in87th Driest
Driest since:
1952
44th Wettest
Wettest since:
1941
Ties: 1965
May–Oct 1984
6-Month
16.90in
(429.26mm)
15.87in
(403.10mm)
1.03in95th Driest
Driest since:
1952
36th Wettest
Wettest since:
1941
Apr–Oct 1984
7-Month
19.85in
(504.19mm)
18.39in
(467.11mm)
1.46in101st Driest
Driest since:
1952
30th Wettest
Wettest since:
1941
Mar–Oct 1984
8-Month
22.60in
(574.04mm)
20.90in
(530.86mm)
1.70in108th Driest
Driest since:
1956
23rd Wettest
Wettest since:
2019
Feb–Oct 1984
9-Month
24.71in
(627.63mm)
23.03in
(584.96mm)
1.68in103rd Driest
Driest since:
1934
28th Wettest
Wettest since:
2019
Jan–Oct 1984
10-Month
26.06in
(661.92mm)
25.34in
(643.64mm)
0.72in84th Driest
Driest since:
1934
47th Wettest
Wettest since:
2019
Dec 1983–Oct 1984
11-Month
29.49in
(749.05mm)
27.69in
(703.33mm)
1.80in100th Driest
Driest since:
1931
30th Wettest
Wettest since:
2019
Nov 1983–Oct 1984
12-Month
33.40in
(848.36mm)
29.92in
(759.97mm)
3.48in119th Driest
Driest since:
1934
11th Wettest
Wettest since:
2019
May 1983–Oct 1984
18-Month
49.12in
(1,247.65mm)
45.81in3.31in107th Driest
Driest since:
1931
23rd Wettest
Wettest since:
2019
Nov 1982–Oct 1984
24-Month
67.52in
(1,715.01mm)
59.87in7.65in126th Driest
Driest since:
1931
3rd WettestWettest to Date2019
Nov 1981–Oct 1984
36-Month
99.04in
(2,515.62mm)
89.81in9.23in122nd Driest
Driest since:
1956
6th Wettest
Wettest since:
2019
Nov 1980–Oct 1984
48-Month
127.89in
(3,248.41mm)
119.72in8.17in113th Driest
Driest since:
1956
14th Wettest
Wettest since:
2019
Nov 1979–Oct 1984
60-Month
157.01in
(3,988.05mm)
149.58in7.43in106th Driest
Driest since:
1934
20th Wettest
Wettest since:
2019

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