Climate at a Glance

National Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of May 2022. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, December 2020

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 2020
1-Month
2.05"
(52.07mm)
2.35"
(59.69mm)
-0.30"
(-7.62mm)
37th Driest Driest since: 2017 1930
91st Wettest Wettest since: 2019 2015
Nov–Dec 2020
2-Month
3.99"
(101.35mm)
4.58"
(116.33mm)
-0.59"
(-14.98mm)
31st Driest Driest since: 2017 1976
97th Wettest Wettest since: 2019 2015
Ties: 1924
Oct–Dec 2020
3-Month
6.17"
(156.72mm)
6.74"
(171.20mm)
-0.57"
(-14.48mm)
35th Driest Driest since: 2017 1917
93rd Wettest Wettest since: 2019 2015
Sep–Dec 2020
4-Month
8.61"
(218.69mm)
9.23"
(234.44mm)
-0.62"
(-15.75mm)
36th Driest Driest since: 2017 1939
92nd Wettest Wettest since: 2019 2018
Aug–Dec 2020
5-Month
11.03"
(280.16mm)
11.85"
(300.99mm)
-0.82"
(-20.83mm)
31st Driest Driest since: 2000 1917
97th Wettest Wettest since: 2019 2018
Jul–Dec 2020
6-Month
13.97"
(354.84mm)
14.62"
(371.35mm)
-0.65"
(-16.51mm)
36th Driest Driest since: 2012 1917
92nd Wettest Wettest since: 2019 2018
Ties: 1955
Jun–Dec 2020
7-Month
16.70"
(424.18mm)
17.55"
(445.77mm)
-0.85"
(-21.59mm)
34th Driest Driest since: 2012 1917
94th Wettest Wettest since: 2019 2018
May–Dec 2020
8-Month
19.79"
(502.67mm)
20.46"
(519.68mm)
-0.67"
(-17.01mm)
39th Driest Driest since: 2012 1917
89th Wettest Wettest since: 2019 2015
Apr–Dec 2020
9-Month
22.31"
(566.67mm)
22.98"
(583.69mm)
-0.67"
(-17.02mm)
40th Driest Driest since: 2012 1956
88th Wettest Wettest since: 2019 2015
Mar–Dec 2020
10-Month
25.17"
(639.32mm)
25.49"
(647.45mm)
-0.32"
(-8.13mm)
45th Driest Driest since: 2012 1956
83rd Wettest Wettest since: 2019 2015
Ties: 1908
Feb–Dec 2020
11-Month
27.62"
(701.55mm)
27.62"
(701.55mm)
0.00"
(0.00mm)
59th Driest Driest since: 2012 1910
69th Wettest Wettest since: 2019 2018
Ties: 1969
Jan–Dec 2020
12-Month
30.38"
(771.65mm)
29.94"
(760.48mm)
0.44"
(11.17mm)
66th Driest Driest since: 2012 1910
62nd Wettest Wettest since: 2019 1973
Jul 2019–Dec 2020
18-Month
46.07"
(1,170.18mm)
44.58"
(1,132.33mm)
1.49"
(37.85mm)
84th Driest Driest since: 2013 1954
43rd Wettest Wettest since: 2019 2019
Jan 2019–Dec 2020
24-Month
65.20"
(1,656.08mm)
59.90"
(1,521.46mm)
5.30"
(134.62mm)
114th Driest Driest since: 2017 1931
13th Wettest Wettest since: 2019 2019
Jan 2018–Dec 2020
36-Month
99.85"
(2,536.19mm)
89.86"
(2,282.44mm)
9.99"
(253.75mm)
123rd Driest Driest since: 2018 1956
3rd Wettest Wettest since: 2019 2019
Jan 2017–Dec 2020
48-Month
132.16"
(3,356.86mm)
119.78"
(3,042.41mm)
12.38"
(314.45mm)
122nd Driest Driest since: 2017 1956
3rd Wettest Wettest since: 2019 2019
Jan 2016–Dec 2020
60-Month
163.58"
(4,154.93mm)
149.68"
(3,801.87mm)
13.90"
(353.06mm)
121st Driest Driest since: 2017 1956
3rd Wettest Wettest since: 2019 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published June 2022, retrieved on July 1, 2022 from https://www.ncei.noaa.gov/cag/