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, May 2021

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • 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
May 2021
1-Month
2.99"
(75.95mm)
2.91"
(73.91mm)
0.08"
(2.04mm)
72nd Driest Driest since: 2014 1934
57th Wettest Wettest since: 2020 2019
Ties: 1927
Apr–May 2021
2-Month
5.06"
(128.52mm)
5.43"
(137.92mm)
-0.37"
(-9.40mm)
40th Driest Driest since: 2012 1934
89th Wettest Wettest since: 2020 1957
Mar–May 2021
3-Month
7.58"
(192.53mm)
7.94"
(201.68mm)
-0.36"
(-9.15mm)
48th Driest Driest since: 2007 1925
81st Wettest Wettest since: 2020 1957, 1991
Feb–May 2021
4-Month
9.60"
(243.84mm)
10.07"
(255.78mm)
-0.47"
(-11.94mm)
43rd Driest Driest since: 2012 1925
86th Wettest Wettest since: 2020 2019
Jan–May 2021
5-Month
11.69"
(296.93mm)
12.39"
(314.71mm)
-0.70"
(-17.78mm)
39th Driest Driest since: 2014 1934
90th Wettest Wettest since: 2020 2019
Dec 2020–May 2021
6-Month
13.74"
(349.00mm)
14.73"
(374.14mm)
-0.99"
(-25.14mm)
33rd Driest Driest since: 2006 1931
95th Wettest Wettest since: 2020 2019
Nov 2020–May 2021
7-Month
15.68"
(398.27mm)
16.96"
(430.78mm)
-1.28"
(-32.51mm)
29th Driest Driest since: 2002 1934
99th Wettest Wettest since: 2020 1983
Ties: 1971
Oct 2020–May 2021
8-Month
17.86"
(453.64mm)
19.13"
(485.90mm)
-1.27"
(-32.26mm)
26th Driest Driest since: 2002 1934
102nd Wettest Wettest since: 2020 2019
Ties: 1951
Sep 2020–May 2021
9-Month
20.30"
(515.62mm)
21.62"
(549.15mm)
-1.32"
(-33.53mm)
30th Driest Driest since: 2006 1934
98th Wettest Wettest since: 2020 2019
Aug 2020–May 2021
10-Month
22.72"
(577.09mm)
24.25"
(615.95mm)
-1.53"
(-38.86mm)
27th Driest Driest since: 2002 1918
101st Wettest Wettest since: 2020 2019
Jul 2020–May 2021
11-Month
25.66"
(651.76mm)
27.03"
(686.56mm)
-1.37"
(-34.80mm)
31st Driest Driest since: 2002 1931
97th Wettest Wettest since: 2020 2019
Jun 2020–May 2021
12-Month
28.39"
(721.11mm)
29.95"
(760.73mm)
-1.56"
(-39.62mm)
31st Driest Driest since: 2013 1934
97th Wettest Wettest since: 2020 2019
Dec 2019–May 2021
18-Month
44.64"
(1,133.86mm)
44.70"
(1,135.38mm)
-0.06"
(-1.52mm)
59th Driest Driest since: 2013 1931
68th Wettest Wettest since: 2020 2019
Jun 2019–May 2021
24-Month
61.13"
(1,552.70mm)
59.92"
(1,521.97mm)
1.21"
(30.73mm)
76th Driest Driest since: 2014 1931
51st Wettest Wettest since: 2020 2020
Jun 2018–May 2021
36-Month
98.84"
(2,510.54mm)
89.88"
(2,282.95mm)
8.96"
(227.59mm)
119th Driest Driest since: 2018 1955
7th Wettest Wettest since: 2020 2019
Jun 2017–May 2021
48-Month
128.91"
(3,274.31mm)
119.78"
(3,042.41mm)
9.13"
(231.90mm)
113th Driest Driest since: 2016 1956
12th Wettest Wettest since: 2020 2019
Jun 2016–May 2021
60-Month
162.31"
(4,122.67mm)
149.64"
(3,800.86mm)
12.67"
(321.81mm)
118th Driest Driest since: 2018 1957
6th Wettest Wettest since: 2020 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published June 2022, retrieved on June 29, 2022 from https://www.ncei.noaa.gov/cag/