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 1895. For more information, please see Climatological Rankings.


Maryland

Precipitation Rankings, September 2018

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2018)
Wettest/Driest
Since
Record
September 2018
1-Month
9.12"
(231.65mm)
3.56"
(90.42mm)
5.56"
(141.23mm)
121ˢᵗ Driest Driest since: 2017 1941
4ᵗʰ Wettest Wettest since: 1999 1999
Aug–Sep 2018
2-Month
14.05"
(356.87mm)
7.95"
(201.93mm)
6.10"
(154.94mm)
119ᵗʰ Driest Driest since: 2017 1930
6ᵗʰ Wettest Wettest since: 2011 2011
Jul–Sep 2018
3-Month
22.28"
(565.91mm)
12.13"
(308.10mm)
10.15"
(257.81mm)
124ᵗʰ Driest Driest since: 2017 1930
1ˢᵗ Wettest Wettest to Date 2018
Jun–Sep 2018
4-Month
27.32"
(693.93mm)
15.98"
(405.89mm)
11.34"
(288.04mm)
124ᵗʰ Driest Driest since: 2017 1930
1ˢᵗ Wettest Wettest to Date 2018
May–Sep 2018
5-Month
34.95"
(887.73mm)
19.71"
(500.63mm)
15.24"
(387.10mm)
124ᵗʰ Driest Driest since: 2017 1930
1ˢᵗ Wettest Wettest to Date 2018
Apr–Sep 2018
6-Month
38.70"
(982.98mm)
23.19"
(589.03mm)
15.51"
(393.95mm)
124ᵗʰ Driest Driest since: 2017 1930
1ˢᵗ Wettest Wettest to Date 2018
Mar–Sep 2018
7-Month
41.44"
(1,052.58mm)
26.97"
(685.04mm)
14.47"
(367.54mm)
124ᵗʰ Driest Driest since: 2017 1930
1ˢᵗ Wettest Wettest to Date 2018
Feb–Sep 2018
8-Month
46.17"
(1,172.72mm)
29.86"
(758.44mm)
16.31"
(414.28mm)
124ᵗʰ Driest Driest since: 2017 1930
1ˢᵗ Wettest Wettest to Date 2018
Jan–Sep 2018
9-Month
48.57"
(1,233.68mm)
33.21"
(843.53mm)
15.36"
(390.15mm)
124ᵗʰ Driest Driest since: 2017 1930
1ˢᵗ Wettest Wettest to Date 2018
Dec 2017–Sep 2018
10-Month
49.52"
(1,257.81mm)
36.49"
(926.85mm)
13.03"
(330.96mm)
120ᵗʰ Driest Driest since: 2017 1930
4ᵗʰ Wettest Wettest since: 2003 2003
Nov 2017–Sep 2018
11-Month
51.48"
(1,307.59mm)
39.48"
(1,002.79mm)
12.00"
(304.80mm)
119ᵗʰ Driest Driest since: 2017 1930
5ᵗʰ Wettest Wettest since: 2003 2003
Oct 2017–Sep 2018
12-Month
55.27"
(1,403.86mm)
42.62"
(1,082.55mm)
12.65"
(321.31mm)
119ᵗʰ Driest Driest since: 2017 1930
5ᵗʰ Wettest Wettest since: 2003 2003
Apr 2017–Sep 2018
18-Month
81.79"
(2,077.47mm)
65.72"
(1,669.29mm)
16.07"
(408.18mm)
122ⁿᵈ Driest Driest since: 2017 1966
2ⁿᵈ Wettest Wettest since: 2004 2004
Oct 2016–Sep 2018
24-Month
96.21"
(2,443.73mm)
85.14"
(2,162.56mm)
11.07"
(281.17mm)
110ᵗʰ Driest Driest since: 2017 1930
13ᵗʰ Wettest Wettest since: 2011 2004
Oct 2015–Sep 2018
36-Month
142.34"
(3,615.44mm)
127.72"
(3,244.09mm)
14.62"
(371.35mm)
113ᵗʰ Driest Driest since: 2017 1931
9ᵗʰ Wettest Wettest since: 2005 2005
Oct 2014–Sep 2018
48-Month
188.30"
(4,782.82mm)
170.22"
(4,323.59mm)
18.08"
(459.23mm)
114ᵗʰ Driest Driest since: 2017 1932
7ᵗʰ Wettest Wettest since: 2006 2006
Oct 2013–Sep 2018
60-Month
235.93"
(5,992.62mm)
212.69"
(5,402.33mm)
23.24"
(590.29mm)
115ᵗʰ Driest Driest since: 2017 1966
5ᵗʰ Wettest Wettest since: 2007 1975

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2018, retrieved on November 14, 2018 from https://www.ncdc.noaa.gov/cag/