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 May 2022. For more information, please see Climatological Rankings.


Maryland

Precipitation Rankings, December 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
December 2020
1-Month
5.41"
(137.41mm)
3.29"
(83.57mm)
2.12"
(53.84mm)
115th Driest Driest since: 2019 1955
13th Wettest Wettest since: 2009 1969
Nov–Dec 2020
2-Month
10.17"
(258.32mm)
6.27"
(159.26mm)
3.90"
(99.06mm)
120th Driest Driest since: 2019 1965
8th Wettest Wettest since: 2018 1972
Oct–Dec 2020
3-Month
14.81"
(376.17mm)
9.38"
(238.25mm)
5.43"
(137.92mm)
120th Driest Driest since: 2019 2001
8th Wettest Wettest since: 2018 2009
Sep–Dec 2020
4-Month
18.83"
(478.28mm)
12.94"
(328.68mm)
5.89"
(149.60mm)
119th Driest Driest since: 2019 1930
9th Wettest Wettest since: 2018 2018
Aug–Dec 2020
5-Month
27.77"
(705.36mm)
17.33"
(440.18mm)
10.44"
(265.18mm)
126th Driest Driest since: 2019 1930
2nd Wettest Wettest since: 2018 2018
Jul–Dec 2020
6-Month
32.14"
(816.36mm)
21.51"
(546.35mm)
10.63"
(270.01mm)
126th Driest Driest since: 2019 1930
2nd Wettest Wettest since: 2018 2018
Jun–Dec 2020
7-Month
35.75"
(908.05mm)
25.36"
(644.14mm)
10.39"
(263.91mm)
124th Driest Driest since: 2019 1930
4th Wettest Wettest since: 2018 2018
May–Dec 2020
8-Month
38.81"
(985.77mm)
29.09"
(738.89mm)
9.72"
(246.88mm)
120th Driest Driest since: 2019 1930
8th Wettest Wettest since: 2018 2018
Apr–Dec 2020
9-Month
43.69"
(1,109.73mm)
32.57"
(827.28mm)
11.12"
(282.45mm)
121st Driest Driest since: 2019 1930
7th Wettest Wettest since: 2018 2018
Mar–Dec 2020
10-Month
46.61"
(1,183.89mm)
36.35"
(923.29mm)
10.26"
(260.60mm)
120th Driest Driest since: 2019 1930
8th Wettest Wettest since: 2018 2018
Feb–Dec 2020
11-Month
49.80"
(1,264.92mm)
39.24"
(996.70mm)
10.56"
(268.22mm)
122nd Driest Driest since: 2019 1930
6th Wettest Wettest since: 2018 2018
Jan–Dec 2020
12-Month
52.84"
(1,342.14mm)
42.59"
(1,081.79mm)
10.25"
(260.35mm)
119th Driest Driest since: 2019 1930
9th Wettest Wettest since: 2018 2018
Jul 2019–Dec 2020
18-Month
72.14"
(1,832.36mm)
64.07"
(1,627.38mm)
8.07"
(204.98mm)
110th Driest Driest since: 2017 1930
17th Wettest Wettest since: 2019 2018
Ties: 1903
Jan 2019–Dec 2020
24-Month
95.54"
(2,426.72mm)
85.13"
(2,162.30mm)
10.41"
(264.42mm)
110th Driest Driest since: 2017 1931
17th Wettest Wettest since: 2019 2004
Jan 2018–Dec 2020
36-Month
160.16"
(4,068.06mm)
127.64"
(3,242.06mm)
32.52"
(826.00mm)
125th Driest Driest since: 2019 1931
1st Wettest Wettest to Date 2020
Jan 2017–Dec 2020
48-Month
201.37"
(5,114.80mm)
170.14"
(4,321.56mm)
31.23"
(793.24mm)
123rd Driest Driest since: 2019 1966
2nd Wettest Wettest to Date 2021
Jan 2016–Dec 2020
60-Month
243.03"
(6,172.96mm)
212.69"
(5,402.33mm)
30.34"
(770.63mm)
122nd Driest Driest since: 2019 1966
2nd Wettest Wettest since: 1975 1975

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2022, retrieved on June 29, 2022 from https://www.ncei.noaa.gov/cag/