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 December 2021. For more information, please see Climatological Rankings.


Maryland

Precipitation Rankings, September 2021

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 2021
1-Month
6.09"
(154.69mm)
3.56"
(90.42mm)
2.53"
(64.27mm)
111th Driest Driest since: 2020 1941
17th Wettest Wettest since: 2018 1999
Aug–Sep 2021
2-Month
11.93"
(303.02mm)
7.95"
(201.93mm)
3.98"
(101.09mm)
114th Driest Driest since: 2019 1930
14th Wettest Wettest since: 2020 2011
Jul–Sep 2021
3-Month
16.27"
(413.26mm)
12.13"
(308.10mm)
4.14"
(105.16mm)
109th Driest Driest since: 2019 1930
19th Wettest Wettest since: 2020 2018
Jun–Sep 2021
4-Month
20.06"
(509.52mm)
15.98"
(405.89mm)
4.08"
(103.63mm)
106th Driest Driest since: 2019 1930
22nd Wettest Wettest since: 2020 2018
May–Sep 2021
5-Month
23.46"
(595.88mm)
19.71"
(500.63mm)
3.75"
(95.25mm)
98th Driest Driest since: 2019 1930
30th Wettest Wettest since: 2020 2018
Apr–Sep 2021
6-Month
26.21"
(665.73mm)
23.19"
(589.03mm)
3.02"
(76.70mm)
90th Driest Driest since: 2019 1930
38th Wettest Wettest since: 2020 2018
Mar–Sep 2021
7-Month
29.61"
(752.09mm)
26.97"
(685.04mm)
2.64"
(67.05mm)
88th Driest Driest since: 2019 1930
40th Wettest Wettest since: 2020 2018
Feb–Sep 2021
8-Month
33.95"
(862.33mm)
29.85"
(758.19mm)
4.10"
(104.14mm)
99th Driest Driest since: 2019 1930
29th Wettest Wettest since: 2020 2018
Jan–Sep 2021
9-Month
36.03"
(915.16mm)
33.21"
(843.53mm)
2.82"
(71.63mm)
95th Driest Driest since: 2019 1930
33rd Wettest Wettest since: 2020 2018
Dec 2020–Sep 2021
10-Month
41.44"
(1,052.58mm)
36.49"
(926.85mm)
4.95"
(125.73mm)
103rd Driest Driest since: 2019 1930
24th Wettest Wettest since: 2020 2003
Nov 2020–Sep 2021
11-Month
46.20"
(1,173.48mm)
39.48"
(1,002.79mm)
6.72"
(170.69mm)
105th Driest Driest since: 2020 1930
22nd Wettest Wettest since: 2018 2003
Oct 2020–Sep 2021
12-Month
50.84"
(1,291.34mm)
42.62"
(1,082.55mm)
8.22"
(208.79mm)
112th Driest Driest since: 2020 1930
15th Wettest Wettest since: 2018 2003
Apr 2020–Sep 2021
18-Month
79.72"
(2,024.89mm)
65.72"
(1,669.29mm)
14.00"
(355.60mm)
122nd Driest Driest since: 2020 1966
5th Wettest Wettest since: 2019 2019
Oct 2019–Sep 2021
24-Month
99.43"
(2,525.52mm)
85.14"
(2,162.56mm)
14.29"
(362.96mm)
119th Driest Driest since: 2020 1930
7th Wettest Wettest since: 2019 2004
Oct 2018–Sep 2021
36-Month
147.53"
(3,747.26mm)
127.72"
(3,244.09mm)
19.81"
(503.17mm)
119th Driest Driest since: 2019 1931
6th Wettest Wettest since: 2020 2005
Oct 2017–Sep 2021
48-Month
202.89"
(5,153.41mm)
170.22"
(4,323.59mm)
32.67"
(829.82mm)
123rd Driest Driest since: 2020 1932
1st Wettest Wettest to Date 2021
Oct 2016–Sep 2021
60-Month
243.83"
(6,193.28mm)
212.69"
(5,402.33mm)
31.14"
(790.95mm)
121st Driest Driest since: 2020 1966
2nd Wettest Wettest since: 1975 1975

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 18, 2022 from https://www.ncdc.noaa.gov/cag/