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 September 2020. For more information, please see Climatological Rankings.


Maryland

Precipitation Rankings, September 1940

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
September 1940
1-Month
3.26"
(82.80mm)
3.56"
(90.42mm)
-0.30"
(-7.62mm)
69th Driest Driest since: 1939 1941
58th Wettest Wettest since: 1938 1999
Ties: 1916
Aug–Sep 1940
2-Month
8.22"
(208.79mm)
7.95"
(201.93mm)
0.27"
(6.86mm)
75th Driest Driest since: 1939 1930
52nd Wettest Wettest since: 1938 2011
Ties: 1993
Jul–Sep 1940
3-Month
11.59"
(294.39mm)
12.13"
(308.10mm)
-0.54"
(-13.71mm)
64th Driest Driest since: 1939 1930
63rd Wettest Wettest since: 1938 2018
Jun–Sep 1940
4-Month
13.61"
(345.69mm)
15.98"
(405.89mm)
-2.37"
(-60.20mm)
37th Driest Driest since: 1932 1930
90th Wettest Wettest since: 1939 2018
May–Sep 1940
5-Month
17.98"
(456.69mm)
19.71"
(500.63mm)
-1.73"
(-43.94mm)
44th Driest Driest since: 1939 1930
83rd Wettest Wettest since: 1938 2018
Apr–Sep 1940
6-Month
23.96"
(608.58mm)
23.19"
(589.03mm)
0.77"
(19.55mm)
77th Driest Driest since: 1939 1930
50th Wettest Wettest since: 1938 2018
Mar–Sep 1940
7-Month
27.82"
(706.63mm)
26.97"
(685.04mm)
0.85"
(21.59mm)
76th Driest Driest since: 1939 1930
51st Wettest Wettest since: 1938 2018
Feb–Sep 1940
8-Month
30.81"
(782.57mm)
29.86"
(758.44mm)
0.95"
(24.13mm)
73rd Driest Driest since: 1936 1930
54th Wettest Wettest since: 1939 2018
Jan–Sep 1940
9-Month
33.25"
(844.55mm)
33.21"
(843.53mm)
0.04"
(1.02mm)
66th Driest Driest since: 1932 1930
61st Wettest Wettest since: 1939 2018
Dec 1939–Sep 1940
10-Month
35.21"
(894.33mm)
36.49"
(926.85mm)
-1.28"
(-32.52mm)
52nd Driest Driest since: 1932 1930
74th Wettest Wettest since: 1939 2003
Nov 1939–Sep 1940
11-Month
36.65"
(930.91mm)
39.48"
(1,002.79mm)
-2.83"
(-71.88mm)
43rd Driest Driest since: 1932 1930
83rd Wettest Wettest since: 1939 2003
Oct 1939–Sep 1940
12-Month
41.60"
(1,056.64mm)
42.62"
(1,082.55mm)
-1.02"
(-25.91mm)
60th Driest Driest since: 1932 1930
66th Wettest Wettest since: 1939 2003
Apr 1939–Sep 1940
18-Month
63.96"
(1,624.58mm)
65.72"
(1,669.29mm)
-1.76"
(-44.71mm)
52nd Driest Driest since: 1932 1966
74th Wettest Wettest since: 1939 2019
Oct 1938–Sep 1940
24-Month
84.78"
(2,153.41mm)
85.14"
(2,162.56mm)
-0.36"
(-9.15mm)
58th Driest Driest since: 1932 1930
67th Wettest Wettest since: 1939 2004
Oct 1937–Sep 1940
36-Month
131.21"
(3,332.73mm)
127.72"
(3,244.09mm)
3.49"
(88.64mm)
68th Driest Driest since: 1932 1931
56th Wettest Wettest since: 1939 2005
Oct 1936–Sep 1940
48-Month
181.82"
(4,618.23mm)
170.22"
(4,323.59mm)
11.60"
(294.64mm)
101st Driest Driest since: 1934 1932
22nd Wettest Wettest since: 1939 2006
Oct 1935–Sep 1940
60-Month
226.10"
(5,742.94mm)
212.69"
(5,402.33mm)
13.41"
(340.61mm)
94th Driest Driest since: 1935 1966
28th Wettest Wettest since: 1939 1975

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 22, 2020 from https://www.ncdc.noaa.gov/cag/