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 2021. 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
(1895-2021)
Wettest/Driest
Since
Record
May 2021
1-Month
2.94"
(74.68mm)
2.91"
(73.91mm)
0.03"
(0.77mm)
66th Driest Driest since: 2014 1934
62nd Wettest Wettest since: 2020 2019
Ties: 1993
Apr–May 2021
2-Month
5.00"
(127.00mm)
5.43"
(137.92mm)
-0.43"
(-10.92mm)
35th Driest Driest since: 2012 1934
93rd Wettest Wettest since: 2020 1957
Ties: 1903, 1930
Mar–May 2021
3-Month
7.53"
(191.26mm)
7.94"
(201.68mm)
-0.41"
(-10.42mm)
42nd Driest Driest since: 2006 1925
86th Wettest Wettest since: 2020 1957, 1991
Ties: 1909, 1940
Feb–May 2021
4-Month
9.56"
(242.82mm)
10.07"
(255.78mm)
-0.51"
(-12.96mm)
42nd Driest Driest since: 2012 1925
86th Wettest Wettest since: 2020 2019
Jan–May 2021
5-Month
11.65"
(295.91mm)
12.39"
(314.71mm)
-0.74"
(-18.80mm)
36th Driest Driest since: 2012 1934
92nd Wettest Wettest since: 2020 2019
Dec 2020–May 2021
6-Month
13.71"
(348.23mm)
14.73"
(374.14mm)
-1.02"
(-25.91mm)
32nd Driest Driest since: 2006 1931
95th Wettest Wettest since: 2020 2019
Ties: 1989
Nov 2020–May 2021
7-Month
15.65"
(397.51mm)
16.96"
(430.78mm)
-1.31"
(-33.27mm)
26th Driest Driest since: 2002 1934
101st Wettest Wettest since: 2020 1983
Oct 2020–May 2021
8-Month
17.83"
(452.88mm)
19.13"
(485.90mm)
-1.30"
(-33.02mm)
26th Driest Driest since: 2002 1934
101st Wettest Wettest since: 2020 2019
Sep 2020–May 2021
9-Month
20.26"
(514.60mm)
21.62"
(549.15mm)
-1.36"
(-34.55mm)
30th Driest Driest since: 2006 1934
97th Wettest Wettest since: 2020 2019
Aug 2020–May 2021
10-Month
22.69"
(576.33mm)
24.25"
(615.95mm)
-1.56"
(-39.62mm)
27th Driest Driest since: 2002 1918
100th Wettest Wettest since: 2020 2019
Jul 2020–May 2021
11-Month
25.63"
(651.00mm)
27.03"
(686.56mm)
-1.40"
(-35.56mm)
31st Driest Driest since: 2002 1931
96th Wettest Wettest since: 2020 2019
Jun 2020–May 2021
12-Month
28.36"
(720.34mm)
29.95"
(760.73mm)
-1.59"
(-40.39mm)
30th Driest Driest since: 2013 1934
97th Wettest Wettest since: 2020 2019
Dec 2019–May 2021
18-Month
44.58"
(1,132.33mm)
44.70"
(1,135.38mm)
-0.12"
(-3.05mm)
57th Driest Driest since: 2013 1931
69th Wettest Wettest since: 2020 2019
Jun 2019–May 2021
24-Month
61.07"
(1,551.18mm)
59.92"
(1,521.97mm)
1.15"
(29.21mm)
74th Driest Driest since: 2014 1931
52nd Wettest Wettest since: 2020 2020
Jun 2018–May 2021
36-Month
98.78"
(2,509.01mm)
89.88"
(2,282.95mm)
8.90"
(226.06mm)
117th Driest Driest since: 2018 1955
8th Wettest Wettest since: 2020 2019
Jun 2017–May 2021
48-Month
128.85"
(3,272.79mm)
119.78"
(3,042.41mm)
9.07"
(230.38mm)
113th Driest Driest since: 2016 1956
11th Wettest Wettest since: 2020 2019
Jun 2016–May 2021
60-Month
162.25"
(4,121.15mm)
149.64"
(3,800.86mm)
12.61"
(320.29mm)
117th 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 2021, retrieved on June 12, 2021 from https://www.ncdc.noaa.gov/cag/