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 August 2022. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, August 2021

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 2021
1-Month
3.14"
(79.76mm)
2.62"
(66.55mm)
0.52"
(13.21mm)
117th Driest Driest since: 2020 1929
12th Wettest Wettest since: 2017 1977
Jul–Aug 2021
2-Month
6.55"
(166.37mm)
5.40"
(137.16mm)
1.15"
(29.21mm)
126th Driest Driest since: 2020 1930
3rd Wettest Wettest since: 1992 1915
Ties: 1992
Jun–Aug 2021
3-Month
9.52"
(241.81mm)
8.32"
(211.33mm)
1.20"
(30.48mm)
121st Driest Driest since: 2020 1930
8th Wettest Wettest since: 2004 1928
May–Aug 2021
4-Month
12.51"
(317.75mm)
11.23"
(285.24mm)
1.28"
(32.51mm)
113th Driest Driest since: 2020 1936
16th Wettest Wettest since: 2019 1915
Apr–Aug 2021
5-Month
14.58"
(370.33mm)
13.75"
(349.25mm)
0.83"
(21.08mm)
96th Driest Driest since: 2020 1934
33rd Wettest Wettest since: 2019 2019
Ties: 1944
Mar–Aug 2021
6-Month
17.10"
(434.34mm)
16.26"
(413.00mm)
0.84"
(21.34mm)
89th Driest Driest since: 2020 1936
40th Wettest Wettest since: 2019 1905
Feb–Aug 2021
7-Month
19.13"
(485.90mm)
18.40"
(467.36mm)
0.73"
(18.54mm)
79th Driest Driest since: 2020 1934
50th Wettest Wettest since: 2019 2019
Jan–Aug 2021
8-Month
21.22"
(538.99mm)
20.71"
(526.03mm)
0.51"
(12.96mm)
74th Driest Driest since: 2014 1934
55th Wettest Wettest since: 2020 2019
Dec 2020–Aug 2021
9-Month
23.27"
(591.06mm)
23.05"
(585.47mm)
0.22"
(5.59mm)
60th Driest Driest since: 2012 1931
68th Wettest Wettest since: 2020 2019
Nov 2020–Aug 2021
10-Month
25.21"
(640.33mm)
25.28"
(642.11mm)
-0.07"
(-1.78mm)
58th Driest Driest since: 2018 1934
70th Wettest Wettest since: 2020 2019
Oct 2020–Aug 2021
11-Month
27.39"
(695.71mm)
27.45"
(697.23mm)
-0.06"
(-1.52mm)
54th Driest Driest since: 2012 1934
74th Wettest Wettest since: 2020 2019
Ties: 2011
Sep 2020–Aug 2021
12-Month
29.83"
(757.68mm)
29.94"
(760.48mm)
-0.11"
(-2.80mm)
55th Driest Driest since: 2018 1934
73rd Wettest Wettest since: 2020 2019
Mar 2020–Aug 2021
18-Month
46.39"
(1,178.31mm)
46.22"
(1,173.99mm)
0.17"
(4.32mm)
58th Driest Driest since: 2013 1931
70th Wettest Wettest since: 2020 2019
Sep 2019–Aug 2021
24-Month
61.75"
(1,568.45mm)
59.92"
(1,521.97mm)
1.83"
(46.48mm)
83rd Driest Driest since: 2014 1918
44th Wettest Wettest since: 2020 2020
Sep 2018–Aug 2021
36-Month
99.38"
(2,524.25mm)
89.86"
(2,282.44mm)
9.52"
(241.81mm)
122nd Driest Driest since: 2020 1956
4th Wettest Wettest since: 2019 2019
Sep 2017–Aug 2021
48-Month
129.15"
(3,280.41mm)
119.77"
(3,042.16mm)
9.38"
(238.25mm)
117th Driest Driest since: 2016 1956
8th Wettest Wettest since: 2020 2019
Sep 2016–Aug 2021
60-Month
162.97"
(4,139.44mm)
149.64"
(3,800.86mm)
13.33"
(338.58mm)
120th Driest Driest since: 2018 1934
4th Wettest Wettest since: 2020 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, Precipitation, published September 2022, retrieved on September 24, 2022 from https://www.ncdc.noaa.gov/cag/