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 1985

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 1985
1-Month
1.46"
(37.08mm)
2.35"
(59.69mm)
-0.89"
(-22.61mm)
6th Driest
Driest since:
1930
122nd Wettest
Wettest since:
2015
Nov–Dec 1985
2-Month
5.00"
(127.00mm)
4.58"
(116.33mm)
0.42"
(10.67mm)
93rd Driest
Driest since:
1976
35th Wettest
Wettest since:
2015
Oct–Dec 1985
3-Month
8.18"
(207.77mm)
6.74"
(171.20mm)
1.44"
(36.57mm)
115th Driest
Driest since:
1917
13th Wettest
Wettest since:
2015
Sep–Dec 1985
4-Month
11.18"
(283.97mm)
9.23"
(234.44mm)
1.95"
(49.53mm)
115th Driest
Driest since:
1939
13th Wettest
Wettest since:
2018
Aug–Dec 1985
5-Month
14.11"
(358.39mm)
11.85"
(300.99mm)
2.26"
(57.40mm)
115th Driest
Driest since:
1917
13th Wettest
Wettest since:
2018
Jul–Dec 1985
6-Month
16.83"
(427.48mm)
14.62"
(371.35mm)
2.21"
(56.13mm)
114th Driest
Driest since:
1917
14th Wettest
Wettest since:
2018
Jun–Dec 1985
7-Month
19.45"
(494.03mm)
17.55"
(445.77mm)
1.90"
(48.26mm)
111th Driest
Driest since:
1917
17th Wettest
Wettest since:
2018
May–Dec 1985
8-Month
22.00"
(558.80mm)
20.46"
(519.68mm)
1.54"
(39.12mm)
97th Driest
Driest since:
1917
31st Wettest
Wettest since:
2015
Apr–Dec 1985
9-Month
23.97"
(608.84mm)
22.98"
(583.69mm)
0.99"
(25.15mm)
80th Driest
Driest since:
1956
48th Wettest
Wettest since:
2015
Mar–Dec 1985
10-Month
26.45"
(671.83mm)
25.49"
(647.45mm)
0.96"
(24.38mm)
78th Driest
Driest since:
1956
50th Wettest
Wettest since:
2015
Feb–Dec 1985
11-Month
28.55"
(725.17mm)
27.62"
(701.55mm)
0.93"
(23.62mm)
79th Driest
Driest since:
1910
49th Wettest
Wettest since:
2018
Ties: 1946
Jan–Dec 1985
12-Month
29.97"
(761.24mm)
29.94"
(760.48mm)
0.03"
(0.76mm)
57th Driest
Driest since:
1910
71st Wettest
Wettest since:
1973
Jul 1984–Dec 1985
18-Month
46.13"
(1,171.70mm)
44.58"
(1,132.33mm)
1.55"
(39.37mm)
85th Driest
Driest since:
1954
42nd Wettest
Wettest since:
2019
Jan 1984–Dec 1985
24-Month
61.37"
(1,558.80mm)
59.90"
(1,521.46mm)
1.47"
(37.34mm)
83rd Driest
Driest since:
1931
44th Wettest
Wettest since:
2019
Jan 1983–Dec 1985
36-Month
96.13"
(2,441.70mm)
89.86"
(2,282.44mm)
6.27"
(159.26mm)
109th Driest
Driest since:
1956
17th Wettest
Wettest since:
2019
Jan 1982–Dec 1985
48-Month
129.99"
(3,301.75mm)
119.78"
(3,042.41mm)
10.21"
(259.34mm)
118th Driest
Driest since:
1956
7th Wettest
Wettest since:
2019
Jan 1981–Dec 1985
60-Month
159.95"
(4,062.73mm)
149.68"
(3,801.87mm)
10.27"
(260.86mm)
112th Driest
Driest since:
1956
12th Wettest
Wettest since:
2019

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