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, September 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
September 2020
1-Month
2.44"
(61.98mm)
2.49"
(63.25mm)
-0.05"
(-1.27mm)
52nd Driest Driest since: 2017 1956
76th Wettest Wettest since: 2019 1986
Ties: 1918, 1920, 1966, 1978
Aug–Sep 2020
2-Month
4.86"
(123.44mm)
5.11"
(129.79mm)
-0.25"
(-6.35mm)
42nd Driest Driest since: 2015 1956
86th Wettest Wettest since: 2019 1977
Ties: 1995, 2001
Jul–Sep 2020
3-Month
7.80"
(198.12mm)
7.88"
(200.15mm)
-0.08"
(-2.03mm)
58th Driest Driest since: 2015 1930
70th Wettest Wettest since: 2019 1915
Ties: 1914
Jun–Sep 2020
4-Month
10.53"
(267.46mm)
10.81"
(274.57mm)
-0.28"
(-7.11mm)
43rd Driest Driest since: 2012 1930
85th Wettest Wettest since: 2019 1915
May–Sep 2020
5-Month
13.62"
(345.95mm)
13.72"
(348.49mm)
-0.10"
(-2.54mm)
53rd Driest Driest since: 2012 1956
75th Wettest Wettest since: 2019 1915
Ties: 1999
Apr–Sep 2020
6-Month
16.14"
(409.96mm)
16.24"
(412.50mm)
-0.10"
(-2.54mm)
55th Driest Driest since: 2012 1956
73rd Wettest Wettest since: 2019 1915
Mar–Sep 2020
7-Month
19.00"
(482.60mm)
18.75"
(476.25mm)
0.25"
(6.35mm)
67th Driest Driest since: 2012 1956
61st Wettest Wettest since: 2019 1973
Ties: 1929
Feb–Sep 2020
8-Month
21.45"
(544.83mm)
20.88"
(530.35mm)
0.57"
(14.48mm)
75th Driest Driest since: 2012 1930
53rd Wettest Wettest since: 2019 2019
Ties: 1992
Jan–Sep 2020
9-Month
24.21"
(614.93mm)
23.20"
(589.28mm)
1.01"
(25.65mm)
91st Driest Driest since: 2014 1934
37th Wettest Wettest since: 2019 2019
Dec 2019–Sep 2020
10-Month
26.78"
(680.21mm)
25.54"
(648.72mm)
1.24"
(31.49mm)
89th Driest Driest since: 2014 1931
38th Wettest Wettest since: 2019 2019
Nov 2019–Sep 2020
11-Month
28.72"
(729.49mm)
27.77"
(705.36mm)
0.95"
(24.13mm)
82nd Driest Driest since: 2018 1934
45th Wettest Wettest since: 2019 2019
Oct 2019–Sep 2020
12-Month
31.91"
(810.51mm)
29.94"
(760.48mm)
1.97"
(50.03mm)
98th Driest Driest since: 2018 1934
29th Wettest Wettest since: 2019 2019
Apr 2019–Sep 2020
18-Month
50.95"
(1,294.13mm)
46.20"
(1,173.48mm)
4.75"
(120.65mm)
118th Driest Driest since: 2018 1931
9th Wettest Wettest since: 2019 2019
Oct 2018–Sep 2020
24-Month
68.42"
(1,737.87mm)
59.92"
(1,521.97mm)
8.50"
(215.90mm)
125th Driest Driest since: 2019 1918
1st Wettest Wettest to Date 2020
Oct 2017–Sep 2020
36-Month
99.49"
(2,527.05mm)
89.87"
(2,282.70mm)
9.62"
(244.35mm)
121st Driest Driest since: 2018 1956
4th Wettest Wettest since: 2019 2019
Oct 2016–Sep 2020
48-Month
132.85"
(3,374.39mm)
119.78"
(3,042.41mm)
13.07"
(331.98mm)
122nd Driest Driest since: 2018 1956
2nd Wettest Wettest since: 2019 2019
Oct 2015–Sep 2020
60-Month
167.72"
(4,260.09mm)
149.66"
(3,801.36mm)
18.06"
(458.73mm)
122nd Driest Driest since: 2019 1956
1st Wettest Wettest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published June 2022, retrieved on July 4, 2022 from https://www.ncei.noaa.gov/cag/