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 2022. For more information, please see Climatological Rankings.


Maryland

Precipitation Rankings, October 2020

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
October 2020
1-Month
4.64"
(117.86mm)
3.11"
(78.99mm)
1.53"
(38.87mm)
101st Driest Driest since: 2018 1963
27th Wettest Wettest since: 2019 1976
Sep–Oct 2020
2-Month
8.66"
(219.96mm)
6.68"
(169.67mm)
1.98"
(50.29mm)
98th Driest Driest since: 2019 1941
30th Wettest Wettest since: 2018 1999
Aug–Oct 2020
3-Month
17.60"
(447.04mm)
11.06"
(280.92mm)
6.54"
(166.12mm)
121st Driest Driest since: 2019 1930
7th Wettest Wettest since: 2018 2011
Jul–Oct 2020
4-Month
21.97"
(558.04mm)
15.24"
(387.10mm)
6.73"
(170.94mm)
119th Driest Driest since: 2019 1930
9th Wettest Wettest since: 2018 2018
Jun–Oct 2020
5-Month
25.58"
(649.73mm)
19.09"
(484.89mm)
6.49"
(164.84mm)
116th Driest Driest since: 2019 1930
12th Wettest Wettest since: 2018 2018
May–Oct 2020
6-Month
28.64"
(727.46mm)
22.82"
(579.63mm)
5.82"
(147.83mm)
112th Driest Driest since: 2019 1930
16th Wettest Wettest since: 2018 2018
Apr–Oct 2020
7-Month
33.52"
(851.41mm)
26.30"
(668.02mm)
7.22"
(183.39mm)
115th Driest Driest since: 2019 1930
13th Wettest Wettest since: 2018 2018
Mar–Oct 2020
8-Month
36.44"
(925.58mm)
30.08"
(764.03mm)
6.36"
(161.55mm)
113th Driest Driest since: 2019 1930
15th Wettest Wettest since: 2018 2018
Feb–Oct 2020
9-Month
39.63"
(1,006.60mm)
32.97"
(837.44mm)
6.66"
(169.16mm)
115th Driest Driest since: 2019 1930
13th Wettest Wettest since: 2018 2018
Jan–Oct 2020
10-Month
42.67"
(1,083.82mm)
36.33"
(922.78mm)
6.34"
(161.04mm)
114th Driest Driest since: 2019 1930
14th Wettest Wettest since: 2018 2018
Ties: 1903
Dec 2019–Oct 2020
11-Month
46.27"
(1,175.26mm)
39.61"
(1,006.09mm)
6.66"
(169.17mm)
112th Driest Driest since: 2019 1930
15th Wettest Wettest since: 2018 1979
Nov 2019–Oct 2020
12-Month
47.97"
(1,218.44mm)
42.60"
(1,082.04mm)
5.37"
(136.40mm)
99th Driest Driest since: 2017 1930
28th Wettest Wettest since: 2019 2003
May 2019–Oct 2020
18-Month
71.39"
(1,813.31mm)
65.38"
(1,660.65mm)
6.01"
(152.66mm)
89th Driest Driest since: 2017 1930
38th Wettest Wettest since: 2019 2019
Nov 2018–Oct 2020
24-Month
97.29"
(2,471.17mm)
85.12"
(2,162.05mm)
12.17"
(309.12mm)
111th Driest Driest since: 2017 1931
15th Wettest Wettest since: 2019 2004
Nov 2017–Oct 2020
36-Month
152.90"
(3,883.66mm)
127.68"
(3,243.07mm)
25.22"
(640.59mm)
123rd Driest Driest since: 2019 1931
2nd Wettest Wettest since: 2005 2005
Nov 2016–Oct 2020
48-Month
195.41"
(4,963.41mm)
170.17"
(4,322.32mm)
25.24"
(641.09mm)
121st Driest Driest since: 2019 1966
3rd Wettest Wettest since: 2006 2021
Nov 2015–Oct 2020
60-Month
240.05"
(6,097.27mm)
212.67"
(5,401.82mm)
27.38"
(695.45mm)
119th Driest Driest since: 2019 1966
4th Wettest Wettest since: 1975 1975

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on September 30, 2022 from https://www.ncdc.noaa.gov/cag/