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


Maryland

Precipitation Rankings, September 2018

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
September 2018
1-Month
9.14"
(232.16mm)
3.56"
(90.42mm)
5.58"
(141.74mm)
122nd Driest Driest since: 2017 1941
4th Wettest Wettest since: 1999 1999
Aug–Sep 2018
2-Month
14.09"
(357.89mm)
7.95"
(201.93mm)
6.14"
(155.96mm)
121st Driest Driest since: 2017 1930
5th Wettest Wettest since: 2011 2011
Jul–Sep 2018
3-Month
22.29"
(566.17mm)
12.13"
(308.10mm)
10.16"
(258.07mm)
125th Driest Driest since: 2017 1930
1st Wettest Wettest to Date 2018
Jun–Sep 2018
4-Month
27.39"
(695.71mm)
15.98"
(405.89mm)
11.41"
(289.82mm)
125th Driest Driest since: 2017 1930
1st Wettest Wettest to Date 2018
May–Sep 2018
5-Month
35.00"
(889.00mm)
19.71"
(500.63mm)
15.29"
(388.37mm)
125th Driest Driest since: 2017 1930
1st Wettest Wettest to Date 2018
Apr–Sep 2018
6-Month
38.75"
(984.25mm)
23.19"
(589.03mm)
15.56"
(395.22mm)
125th Driest Driest since: 2017 1930
1st Wettest Wettest to Date 2018
Mar–Sep 2018
7-Month
41.53"
(1,054.86mm)
26.97"
(685.04mm)
14.56"
(369.82mm)
125th Driest Driest since: 2017 1930
1st Wettest Wettest to Date 2018
Feb–Sep 2018
8-Month
46.26"
(1,175.00mm)
29.85"
(758.19mm)
16.41"
(416.81mm)
125th Driest Driest since: 2017 1930
1st Wettest Wettest to Date 2018
Jan–Sep 2018
9-Month
48.66"
(1,235.96mm)
33.21"
(843.53mm)
15.45"
(392.43mm)
125th Driest Driest since: 2017 1930
1st Wettest Wettest to Date 2018
Dec 2017–Sep 2018
10-Month
49.61"
(1,260.09mm)
36.49"
(926.85mm)
13.12"
(333.24mm)
121st Driest Driest since: 2017 1930
4th Wettest Wettest since: 2003 2003
Nov 2017–Sep 2018
11-Month
51.57"
(1,309.88mm)
39.48"
(1,002.79mm)
12.09"
(307.09mm)
121st Driest Driest since: 2017 1930
4th Wettest Wettest since: 2003 2003
Oct 2017–Sep 2018
12-Month
55.36"
(1,406.14mm)
42.62"
(1,082.55mm)
12.74"
(323.59mm)
120th Driest Driest since: 2017 1930
5th Wettest Wettest since: 2003 2003
Apr 2017–Sep 2018
18-Month
81.88"
(2,079.75mm)
65.72"
(1,669.29mm)
16.16"
(410.46mm)
122nd Driest Driest since: 2017 1966
3rd Wettest Wettest since: 2004 2019
Oct 2016–Sep 2018
24-Month
96.30"
(2,446.02mm)
85.14"
(2,162.56mm)
11.16"
(283.46mm)
110th Driest Driest since: 2017 1930
14th Wettest Wettest since: 2011 2004
Oct 2015–Sep 2018
36-Month
142.43"
(3,617.72mm)
127.72"
(3,244.09mm)
14.71"
(373.63mm)
113th Driest Driest since: 2017 1931
10th Wettest Wettest since: 2005 2005
Oct 2014–Sep 2018
48-Month
188.39"
(4,785.11mm)
170.22"
(4,323.59mm)
18.17"
(461.52mm)
114th Driest Driest since: 2017 1932
8th Wettest Wettest since: 2006 2006
Oct 2013–Sep 2018
60-Month
236.02"
(5,994.91mm)
212.69"
(5,402.33mm)
23.33"
(592.58mm)
115th Driest Driest since: 2017 1966
6th Wettest Wettest since: 2007 1975

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2020, retrieved on February 28, 2020 from https://www.ncdc.noaa.gov/cag/