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 1927

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
(1895-2021)
Wettest/Driest
Since
Record
December 1927
1-Month
2.68"
(68.07mm)
2.35"
(59.69mm)
0.33"
(8.38mm)
89th Driest
Driest since:
1930
39th Wettest
Wettest since:
2015
Nov–Dec 1927
2-Month
5.43"
(137.92mm)
4.58"
(116.33mm)
0.85"
(21.59mm)
108th Driest
Driest since:
1976
20th Wettest
Wettest since:
2015
Oct–Dec 1927
3-Month
7.78"
(197.61mm)
6.74"
(171.20mm)
1.04"
(26.41mm)
104th Driest
Driest since:
1917
24th Wettest
Wettest since:
2015
Sep–Dec 1927
4-Month
10.26"
(260.60mm)
9.23"
(234.44mm)
1.03"
(26.16mm)
98th Driest
Driest since:
1939
30th Wettest
Wettest since:
2018
Ties: 1959
Aug–Dec 1927
5-Month
12.98"
(329.69mm)
11.85"
(300.99mm)
1.13"
(28.70mm)
100th Driest
Driest since:
1917
28th Wettest
Wettest since:
2018
Ties: 1945
Jul–Dec 1927
6-Month
15.82"
(401.83mm)
14.62"
(371.35mm)
1.20"
(30.48mm)
99th Driest
Driest since:
1917
29th Wettest
Wettest since:
2018
Jun–Dec 1927
7-Month
18.94"
(481.08mm)
17.55"
(445.77mm)
1.39"
(35.31mm)
101st Driest
Driest since:
1917
27th Wettest
Wettest since:
2018
May–Dec 1927
8-Month
21.93"
(557.02mm)
20.46"
(519.68mm)
1.47"
(37.34mm)
94th Driest
Driest since:
1917
34th Wettest
Wettest since:
2015
Apr–Dec 1927
9-Month
24.98"
(634.49mm)
22.98"
(583.69mm)
2.00"
(50.80mm)
107th Driest
Driest since:
1956
21st Wettest
Wettest since:
2015
Mar–Dec 1927
10-Month
27.57"
(700.28mm)
25.49"
(647.45mm)
2.08"
(52.83mm)
107th Driest
Driest since:
1956
21st Wettest
Wettest since:
2015
Ties: 1972
Feb–Dec 1927
11-Month
30.29"
(769.37mm)
27.62"
(701.55mm)
2.67"
(67.82mm)
111th Driest
Driest since:
1910
17th Wettest
Wettest since:
2018
Jan–Dec 1927
12-Month
32.06"
(814.32mm)
29.94"
(760.48mm)
2.12"
(53.84mm)
104th Driest
Driest since:
1910
24th Wettest
Wettest since:
1973
Jul 1926–Dec 1927
18-Month
49.40"
(1,254.76mm)
44.58"
(1,132.33mm)
4.82"
(122.43mm)
120th Driest
Driest since:
1954
7th Wettest
Wettest to Date
2019
Jan 1926–Dec 1927
24-Month
63.00"
(1,600.20mm)
59.90"
(1,521.46mm)
3.10"
(78.74mm)
94th Driest
Driest since:
1931
33rd Wettest
Wettest since:
2019
Jan 1925–Dec 1927
36-Month
89.96"
(2,284.98mm)
89.86"
(2,282.44mm)
0.10"
(2.54mm)
61st Driest
Driest since:
1956
65th Wettest
Wettest since:
2019
Ties: 1976
Jan 1924–Dec 1927
48-Month
116.48"
(2,958.59mm)
119.78"
(3,042.41mm)
-3.30"
(-83.82mm)
30th Driest
Driest since:
1956
95th Wettest
Wettest since:
2019
Jan 1923–Dec 1927
60-Month
148.16"
(3,763.26mm)
149.68"
(3,801.87mm)
-1.52"
(-38.61mm)
49th Driest
Driest since:
1956
75th Wettest
Wettest since:
2019

Citing This Page