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 September 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, September 1990

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1990
1-Month
2.04"
(51.82mm)
2.49"
(63.25mm)
-0.45"
(-11.43mm)
18th Driest Driest since: 1984 1956
110th Wettest Wettest since: 1989 1986
Aug–Sep 1990
2-Month
4.69"
(119.13mm)
5.11"
(129.79mm)
-0.42"
(-10.66mm)
28th Driest Driest since: 1984 1956
100th Wettest Wettest since: 1989 1977
Ties: 1909
Jul–Sep 1990
3-Month
7.63"
(193.80mm)
7.88"
(200.15mm)
-0.25"
(-6.35mm)
39th Driest Driest since: 1984 1930
89th Wettest Wettest since: 1989 1915
Ties: 2005
Jun–Sep 1990
4-Month
10.13"
(257.30mm)
10.81"
(274.57mm)
-0.68"
(-17.27mm)
28th Driest Driest since: 1988 1930
100th Wettest Wettest since: 1989 1915
May–Sep 1990
5-Month
13.96"
(354.58mm)
13.72"
(348.49mm)
0.24"
(6.09mm)
65th Driest Driest since: 1988 1956
63rd Wettest Wettest since: 1989 1915
Apr–Sep 1990
6-Month
16.45"
(417.83mm)
16.24"
(412.50mm)
0.21"
(5.33mm)
68th Driest Driest since: 1988 1956
60th Wettest Wettest since: 1989 1915
Mar–Sep 1990
7-Month
19.16"
(486.66mm)
18.75"
(476.25mm)
0.41"
(10.41mm)
74th Driest Driest since: 1988 1956
54th Wettest Wettest since: 1989 1973
Feb–Sep 1990
8-Month
21.84"
(554.74mm)
20.88"
(530.35mm)
0.96"
(24.39mm)
83rd Driest Driest since: 1988 1930
45th Wettest Wettest since: 1989 2019
Jan–Sep 1990
9-Month
24.63"
(625.60mm)
23.20"
(589.28mm)
1.43"
(36.32mm)
102nd Driest Driest since: 1989 1934
26th Wettest Wettest since: 1983 2019
Dec 1989–Sep 1990
10-Month
25.97"
(659.64mm)
25.54"
(648.72mm)
0.43"
(10.92mm)
71st Driest Driest since: 1989 1931
56th Wettest Wettest since: 1983 2019
Ties: 1935
Nov 1989–Sep 1990
11-Month
27.70"
(703.58mm)
27.77"
(705.36mm)
-0.07"
(-1.78mm)
58th Driest Driest since: 1988 1934
69th Wettest Wettest since: 1989 2019
Oct 1989–Sep 1990
12-Month
29.59"
(751.59mm)
29.94"
(760.48mm)
-0.35"
(-8.89mm)
48th Driest Driest since: 1988 1934
79th Wettest Wettest since: 1989 2019
Apr 1989–Sep 1990
18-Month
46.71"
(1,186.43mm)
46.20"
(1,173.48mm)
0.51"
(12.95mm)
64th Driest Driest since: 1989 1931
63rd Wettest Wettest since: 1987 2019
Oct 1988–Sep 1990
24-Month
59.97"
(1,523.24mm)
59.92"
(1,521.97mm)
0.05"
(1.27mm)
57th Driest Driest since: 1989 1918
69th Wettest Wettest since: 1987 2020
Oct 1987–Sep 1990
36-Month
86.15"
(2,188.21mm)
89.87"
(2,282.70mm)
-3.72"
(-94.49mm)
21st Driest Driest since: 1968 1956
104th Wettest Wettest since: 1989 2019
Oct 1986–Sep 1990
48-Month
116.34"
(2,955.04mm)
119.78"
(3,042.41mm)
-3.44"
(-87.37mm)
30th Driest Driest since: 1967 1956
94th Wettest Wettest since: 1989 2019
Oct 1985–Sep 1990
60-Month
148.15"
(3,763.01mm)
149.66"
(3,801.36mm)
-1.51"
(-38.35mm)
48th Driest Driest since: 1970 1956
75th Wettest Wettest since: 1989 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2021, retrieved on October 17, 2021 from https://www.ncdc.noaa.gov/cag/