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 2019

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
December 2019
1-Month
2.57"
(65.28mm)
2.35"
(59.69mm)
0.22"
(5.59mm)
78th Driest
Driest since:
1930
51st Wettest
Wettest since:
2015
Ties: 2006
Nov–Dec 2019
2-Month
4.51"
(114.55mm)
4.58"
(116.33mm)
-0.07"
(-1.78mm)
54th Driest
Driest since:
1976
75th Wettest
Wettest since:
2015
Ties: 2005
Oct–Dec 2019
3-Month
7.70"
(195.58mm)
6.74"
(171.20mm)
0.96"
(24.38mm)
99th Driest
Driest since:
1917
30th Wettest
Wettest since:
2015
Sep–Dec 2019
4-Month
10.15"
(257.81mm)
9.23"
(234.44mm)
0.92"
(23.37mm)
96th Driest
Driest since:
1939
33rd Wettest
Wettest since:
2018
Ties: 1942
Aug–Dec 2019
5-Month
12.93"
(328.42mm)
11.85"
(300.99mm)
1.08"
(27.43mm)
97th Driest
Driest since:
1917
32nd Wettest
Wettest since:
2018
Jul–Dec 2019
6-Month
15.69"
(398.53mm)
14.62"
(371.35mm)
1.07"
(27.18mm)
95th Driest
Driest since:
1917
34th Wettest
Wettest since:
2018
Ties: 1923
Jun–Dec 2019
7-Month
19.06"
(484.12mm)
17.55"
(445.77mm)
1.51"
(38.35mm)
104th Driest
Driest since:
1917
25th Wettest
Wettest since:
2018
May–Dec 2019
8-Month
23.53"
(597.66mm)
20.46"
(519.68mm)
3.07"
(77.98mm)
121st Driest
Driest since:
1917
8th Wettest
Wettest since:
2015
Apr–Dec 2019
9-Month
26.74"
(679.20mm)
22.98"
(583.69mm)
3.76"
(95.51mm)
122nd Driest
Driest since:
1956
7th Wettest
Wettest since:
2015
Mar–Dec 2019
10-Month
28.98"
(736.09mm)
25.49"
(647.45mm)
3.49"
(88.64mm)
121st Driest
Driest since:
1956
8th Wettest
Wettest since:
2015
Feb–Dec 2019
11-Month
32.26"
(819.40mm)
27.62"
(701.55mm)
4.64"
(117.85mm)
124th Driest
Driest since:
1910
5th Wettest
Wettest since:
2018
Jan–Dec 2019
12-Month
34.82"
(884.43mm)
29.94"
(760.48mm)
4.88"
(123.95mm)
127th Driest
Driest since:
1910
2nd Wettest
Wettest since:
1973
Jul 2018–Dec 2019
18-Month
53.62"
(1,361.95mm)
44.58"
(1,132.33mm)
9.04"
(229.62mm)
127th Driest
Driest since:
1954
1st Wettest
Wettest to Date
2019
Jan 2018–Dec 2019
24-Month
69.47"
(1,764.54mm)
59.90"
(1,521.46mm)
9.57"
(243.08mm)
127th Driest
Driest since:
1931
1st Wettest
Wettest to Date
2019
Jan 2017–Dec 2019
36-Month
101.78"
(2,585.21mm)
89.86"
(2,282.44mm)
11.92"
(302.77mm)
126th Driest
Driest since:
1956
1st Wettest
Wettest to Date
2019
Jan 2016–Dec 2019
48-Month
133.20"
(3,383.28mm)
119.78"
(3,042.41mm)
13.42"
(340.87mm)
125th Driest
Driest since:
1956
1st Wettest
Wettest to Date
2019
Jan 2015–Dec 2019
60-Month
167.79"
(4,261.87mm)
149.68"
(3,801.87mm)
18.11"
(460.00mm)
124th Driest
Driest since:
1956
1st Wettest
Wettest to Date
2019

Citing This Page