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


Maryland

Precipitation Rankings, May 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
May 2021
1-Month
3.39"
(86.11mm)
3.73"
(94.74mm)
-0.34"
(-8.63mm)
56th Driest Driest since: 2020 1964
72nd Wettest Wettest since: 2019 2018
Apr–May 2021
2-Month
6.14"
(155.96mm)
7.21"
(183.13mm)
-1.07"
(-27.17mm)
42nd Driest Driest since: 2015 1963
86th Wettest Wettest since: 2020 1983
Mar–May 2021
3-Month
9.56"
(242.82mm)
10.99"
(279.15mm)
-1.43"
(-36.33mm)
35th Driest Driest since: 2013 1986
93rd Wettest Wettest since: 2020 1983
Feb–May 2021
4-Month
13.90"
(353.06mm)
13.88"
(352.55mm)
0.02"
(0.51mm)
68th Driest Driest since: 2016 2006
60th Wettest Wettest since: 2020 1983
Jan–May 2021
5-Month
15.98"
(405.89mm)
17.23"
(437.64mm)
-1.25"
(-31.75mm)
46th Driest Driest since: 2013 1969
82nd Wettest Wettest since: 2020 1998
Ties: 1950
Dec 2020–May 2021
6-Month
21.39"
(543.31mm)
20.52"
(521.21mm)
0.87"
(22.10mm)
82nd Driest Driest since: 2020 1986
45th Wettest Wettest since: 2019 1984
Nov 2020–May 2021
7-Month
26.15"
(664.21mm)
23.51"
(597.15mm)
2.64"
(67.06mm)
94th Driest Driest since: 2020 1977
33rd Wettest Wettest since: 2019 1998
Oct 2020–May 2021
8-Month
30.79"
(782.07mm)
26.64"
(676.66mm)
4.15"
(105.41mm)
102nd Driest Driest since: 2020 1925
25th Wettest Wettest since: 2019 1984
Sep 2020–May 2021
9-Month
34.81"
(884.17mm)
30.19"
(766.83mm)
4.62"
(117.34mm)
100th Driest Driest since: 2020 2002
27th Wettest Wettest since: 2019 2019
Aug 2020–May 2021
10-Month
43.75"
(1,111.25mm)
34.56"
(877.82mm)
9.19"
(233.43mm)
122nd Driest Driest since: 2020 1931
5th Wettest Wettest since: 2019 2019
Jul 2020–May 2021
11-Month
48.12"
(1,222.25mm)
38.72"
(983.49mm)
9.40"
(238.76mm)
123rd Driest Driest since: 2020 1931
4th Wettest Wettest since: 2019 2019
Jun 2020–May 2021
12-Month
51.73"
(1,313.94mm)
42.56"
(1,081.02mm)
9.17"
(232.92mm)
122nd Driest Driest since: 2020 1931
5th Wettest Wettest since: 2019 2019
Dec 2019–May 2021
18-Month
72.42"
(1,839.47mm)
63.04"
(1,601.22mm)
9.38"
(238.25mm)
111th Driest Driest since: 2020 1931
15th Wettest Wettest since: 2019 2019
Jun 2019–May 2021
24-Month
92.35"
(2,345.69mm)
85.05"
(2,160.27mm)
7.30"
(185.42mm)
100th Driest Driest since: 2018 1931
26th Wettest Wettest since: 2020 2019
Jun 2018–May 2021
36-Month
154.87"
(3,933.70mm)
127.65"
(3,242.31mm)
27.22"
(691.39mm)
124th Driest Driest since: 2020 1967
1st Wettest Wettest to Date 2021
Jun 2017–May 2021
48-Month
200.29"
(5,087.37mm)
170.18"
(4,322.57mm)
30.11"
(764.80mm)
123rd Driest Driest since: 2020 1966
1st Wettest Wettest to Date 2021
Jun 2016–May 2021
60-Month
242.14"
(6,150.36mm)
212.57"
(5,399.28mm)
29.57"
(751.08mm)
122nd Driest Driest since: 2020 1969
1st Wettest Wettest to Date 2021

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 25, 2021 from https://www.ncdc.noaa.gov/cag/