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 2020. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, August 2020

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
August 2020
1-Month
2.35"
(59.69mm)
2.62"
(66.55mm)
-0.27"
(-6.86mm)
28th Driest Driest since: 2011 1929
99th Wettest Wettest since: 2019 1977
Jul–Aug 2020
2-Month
5.26"
(133.60mm)
5.40"
(137.16mm)
-0.14"
(-3.56mm)
40th Driest Driest since: 2012 1930
87th Wettest Wettest since: 2019 1915
Ties: 1984, 2006
Jun–Aug 2020
3-Month
7.99"
(202.95mm)
8.32"
(211.33mm)
-0.33"
(-8.38mm)
33rd Driest Driest since: 2012 1930
94th Wettest Wettest since: 2019 1928
May–Aug 2020
4-Month
11.07"
(281.18mm)
11.23"
(285.24mm)
-0.16"
(-4.06mm)
49th Driest Driest since: 2012 1936
78th Wettest Wettest since: 2019 1915
Ties: 1960
Apr–Aug 2020
5-Month
13.59"
(345.19mm)
13.75"
(349.25mm)
-0.16"
(-4.06mm)
48th Driest Driest since: 2012 1934
79th Wettest Wettest since: 2019 2019
Mar–Aug 2020
6-Month
16.45"
(417.83mm)
16.26"
(413.00mm)
0.19"
(4.83mm)
62nd Driest Driest since: 2012 1936
65th Wettest Wettest since: 2019 1905
Feb–Aug 2020
7-Month
18.89"
(479.81mm)
18.40"
(467.36mm)
0.49"
(12.45mm)
71st Driest Driest since: 2012 1934
56th Wettest Wettest since: 2019 2019
Ties: 1950
Jan–Aug 2020
8-Month
21.64"
(549.66mm)
20.71"
(526.03mm)
0.93"
(23.63mm)
90th Driest Driest since: 2014 1934
37th Wettest Wettest since: 2019 2019
Dec 2019–Aug 2020
9-Month
24.21"
(614.93mm)
23.05"
(585.47mm)
1.16"
(29.46mm)
89th Driest Driest since: 2018 1931
37th Wettest Wettest since: 2019 2019
Nov 2019–Aug 2020
10-Month
26.15"
(664.21mm)
25.28"
(642.11mm)
0.87"
(22.10mm)
80th Driest Driest since: 2018 1934
46th Wettest Wettest since: 2019 2019
Oct 2019–Aug 2020
11-Month
29.34"
(745.24mm)
27.45"
(697.23mm)
1.89"
(48.01mm)
98th Driest Driest since: 2018 1934
28th Wettest Wettest since: 2019 2019
Sep 2019–Aug 2020
12-Month
31.79"
(807.47mm)
29.94"
(760.48mm)
1.85"
(46.99mm)
97th Driest Driest since: 2018 1934
29th Wettest Wettest since: 2019 2019
Mar 2019–Aug 2020
18-Month
50.62"
(1,285.75mm)
46.22"
(1,173.99mm)
4.40"
(111.76mm)
116th Driest Driest since: 2018 1931
10th Wettest Wettest since: 2019 2019
Sep 2018–Aug 2020
24-Month
69.42"
(1,763.27mm)
59.92"
(1,521.97mm)
9.50"
(241.30mm)
124th Driest Driest since: 2019 1918
1st Wettest Wettest to Date 2020
Sep 2017–Aug 2020
36-Month
99.19"
(2,519.43mm)
89.86"
(2,282.44mm)
9.33"
(236.99mm)
120th Driest Driest since: 2018 1956
4th Wettest Wettest since: 2019 2019
Sep 2016–Aug 2020
48-Month
133.01"
(3,378.45mm)
119.77"
(3,042.16mm)
13.24"
(336.29mm)
121st Driest Driest since: 2018 1956
2nd Wettest Wettest since: 2019 2019
Sep 2015–Aug 2020
60-Month
167.27"
(4,248.66mm)
149.64"
(3,800.86mm)
17.63"
(447.80mm)
120th Driest Driest since: 2018 1934
2nd Wettest Wettest since: 2019 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2020, retrieved on September 19, 2020 from https://www.ncdc.noaa.gov/cag/