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, September 1991

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1991
1-Month
2.53"
(64.26mm)
2.49"
(63.25mm)
0.04"
(1.01mm)
71st Driest Driest since: 1990 1956
57th Wettest Wettest since: 1989 1986
Aug–Sep 1991
2-Month
5.13"
(130.30mm)
5.11"
(129.79mm)
0.02"
(0.51mm)
64th Driest Driest since: 1990 1956
64th Wettest Wettest since: 1989 1977
Ties: 1924, 1934
Jul–Sep 1991
3-Month
7.83"
(198.88mm)
7.88"
(200.15mm)
-0.05"
(-1.27mm)
60th Driest Driest since: 1990 1930
68th Wettest Wettest since: 1989 1915
Jun–Sep 1991
4-Month
10.67"
(271.02mm)
10.81"
(274.57mm)
-0.14"
(-3.55mm)
50th Driest Driest since: 1990 1930
78th Wettest Wettest since: 1989 1915
Ties: 1932, 1944, 1946, 1994
May–Sep 1991
5-Month
14.39"
(365.51mm)
13.72"
(348.49mm)
0.67"
(17.02mm)
82nd Driest Driest since: 1990 1956
46th Wettest Wettest since: 1989 1915
Apr–Sep 1991
6-Month
17.74"
(450.60mm)
16.24"
(412.50mm)
1.50"
(38.10mm)
108th Driest Driest since: 1990 1956
20th Wettest Wettest since: 1973 1915
Mar–Sep 1991
7-Month
21.07"
(535.18mm)
18.75"
(476.25mm)
2.32"
(58.93mm)
120th Driest Driest since: 1990 1956
8th Wettest Wettest since: 1975 1973
Feb–Sep 1991
8-Month
22.71"
(576.83mm)
20.88"
(530.35mm)
1.83"
(46.48mm)
111th Driest Driest since: 1990 1930
17th Wettest Wettest since: 1983 2019
Ties: 1961, 1983
Jan–Sep 1991
9-Month
25.08"
(637.03mm)
23.20"
(589.28mm)
1.88"
(47.75mm)
112th Driest Driest since: 1990 1934
16th Wettest Wettest since: 1979 2019
Dec 1990–Sep 1991
10-Month
27.77"
(705.36mm)
25.54"
(648.72mm)
2.23"
(56.64mm)
112th Driest Driest since: 1990 1931
15th Wettest Wettest since: 1983 2019
Nov 1990–Sep 1991
11-Month
29.86"
(758.44mm)
27.77"
(705.36mm)
2.09"
(53.08mm)
106th Driest Driest since: 1990 1934
21st Wettest Wettest since: 1983 2019
Oct 1990–Sep 1991
12-Month
32.62"
(828.55mm)
29.94"
(760.48mm)
2.68"
(68.07mm)
112th Driest Driest since: 1990 1934
15th Wettest Wettest since: 1983 2019
Apr 1990–Sep 1991
18-Month
49.07"
(1,246.38mm)
46.20"
(1,173.48mm)
2.87"
(72.90mm)
101st Driest Driest since: 1990 1931
26th Wettest Wettest since: 1983 2019
Oct 1989–Sep 1991
24-Month
62.21"
(1,580.13mm)
59.92"
(1,521.97mm)
2.29"
(58.16mm)
90th Driest Driest since: 1990 1918
36th Wettest Wettest since: 1986 2020
Oct 1988–Sep 1991
36-Month
92.59"
(2,351.79mm)
89.87"
(2,282.70mm)
2.72"
(69.09mm)
88th Driest Driest since: 1990 1956
37th Wettest Wettest since: 1987 2019
Oct 1987–Sep 1991
48-Month
118.77"
(3,016.76mm)
119.78"
(3,042.41mm)
-1.01"
(-25.65mm)
48th Driest Driest since: 1990 1956
76th Wettest Wettest since: 1988 2019
Oct 1986–Sep 1991
60-Month
148.96"
(3,783.58mm)
149.66"
(3,801.36mm)
-0.70"
(-17.78mm)
56th Driest Driest since: 1990 1956
67th Wettest Wettest since: 1989 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, Precipitation, published September 2022, retrieved on September 26, 2022 from https://www.ncdc.noaa.gov/cag/