Climate at a Glance

Statewide 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 March 2021. For more information, please see Climatological Rankings.


Maryland

Precipitation Rankings, September 1991

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
September 1991
1-Month
3.67"
(93.22mm)
3.56"
(90.42mm)
0.11"
(2.80mm)
77th Driest Driest since: 1990 1941
50th Wettest Wettest since: 1989 1999
Aug–Sep 1991
2-Month
7.26"
(184.40mm)
7.95"
(201.93mm)
-0.69"
(-17.53mm)
59th Driest Driest since: 1989 1930
68th Wettest Wettest since: 1990 2011
Jul–Sep 1991
3-Month
10.79"
(274.07mm)
12.13"
(308.10mm)
-1.34"
(-34.03mm)
47th Driest Driest since: 1987 1930
80th Wettest Wettest since: 1990 2018
Jun–Sep 1991
4-Month
13.12"
(333.25mm)
15.98"
(405.89mm)
-2.86"
(-72.64mm)
31st Driest Driest since: 1988 1930
96th Wettest Wettest since: 1990 2018
Ties: 1968
May–Sep 1991
5-Month
14.90"
(378.46mm)
19.71"
(500.63mm)
-4.81"
(-122.17mm)
13th Driest Driest since: 1986 1930
114th Wettest Wettest since: 1990 2018
Apr–Sep 1991
6-Month
17.37"
(441.20mm)
23.19"
(589.03mm)
-5.82"
(-147.83mm)
8th Driest Driest since: 1986 1930
119th Wettest Wettest since: 1990 2018
Ties: 1965
Mar–Sep 1991
7-Month
22.17"
(563.12mm)
26.97"
(685.04mm)
-4.80"
(-121.92mm)
16th Driest Driest since: 1986 1930
111th Wettest Wettest since: 1990 2018
Feb–Sep 1991
8-Month
23.46"
(595.88mm)
29.85"
(758.19mm)
-6.39"
(-162.31mm)
11th Driest Driest since: 1986 1930
116th Wettest Wettest since: 1990 2018
Jan–Sep 1991
9-Month
27.17"
(690.12mm)
33.21"
(843.53mm)
-6.04"
(-153.41mm)
12th Driest Driest since: 1986 1930
115th Wettest Wettest since: 1990 2018
Dec 1990–Sep 1991
10-Month
32.08"
(814.83mm)
36.49"
(926.85mm)
-4.41"
(-112.02mm)
25th Driest Driest since: 1986 1930
101st Wettest Wettest since: 1990 2003
Nov 1990–Sep 1991
11-Month
34.07"
(865.38mm)
39.48"
(1,002.79mm)
-5.41"
(-137.41mm)
21st Driest Driest since: 1986 1930
105th Wettest Wettest since: 1990 2003
Oct 1990–Sep 1991
12-Month
38.38"
(974.85mm)
42.62"
(1,082.55mm)
-4.24"
(-107.70mm)
33rd Driest Driest since: 1986 1930
93rd Wettest Wettest since: 1990 2003
Apr 1990–Sep 1991
18-Month
64.61"
(1,641.09mm)
65.72"
(1,669.29mm)
-1.11"
(-28.20mm)
57th Driest Driest since: 1988 1966
69th Wettest Wettest since: 1990 2019
Oct 1989–Sep 1991
24-Month
82.36"
(2,091.94mm)
85.14"
(2,162.56mm)
-2.78"
(-70.62mm)
47th Driest Driest since: 1988 1930
78th Wettest Wettest since: 1990 2004
Oct 1988–Sep 1991
36-Month
132.65"
(3,369.31mm)
127.72"
(3,244.09mm)
4.93"
(125.22mm)
77th Driest Driest since: 1989 1931
47th Wettest Wettest since: 1990 2005
Oct 1987–Sep 1991
48-Month
171.29"
(4,350.77mm)
170.22"
(4,323.59mm)
1.07"
(27.18mm)
56th Driest Driest since: 1989 1932
67th Wettest Wettest since: 1990 2006
Oct 1986–Sep 1991
60-Month
214.27"
(5,442.46mm)
212.69"
(5,402.33mm)
1.58"
(40.13mm)
58th Driest Driest since: 1990 1966
64th Wettest Wettest since: 1982 1975

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published April 2021, retrieved on April 21, 2021 from https://www.ncdc.noaa.gov/cag/