Maryland December 2020 Precipitation Rankings
1901-2000
Inches
1
5.41
3.29
2.12
116
14
1955
1969
2019
2009
top-third
2
10.17
6.27
3.90
122
8
1965
1972
2019
2018
top-tenth
3
14.81
9.38
5.43
122
8
2001
2009
2019
2018
top-tenth
4
18.83
12.94
5.89
121
9
1930
2018
2019
2018
top-tenth
5
27.77
17.33
10.44
128
2
1930
2018
2019
2018
top-tenth
6
32.14
21.51
10.63
128
2
1930
2018
2019
2018
top-tenth
7
35.75
25.36
10.39
126
4
1930
2018
2019
2018
top-tenth
8
38.81
29.09
9.72
122
8
1930
2018
2019
2018
top-tenth
9
43.69
32.57
11.12
123
7
1930
2018
2019
2018
top-tenth
10
46.61
36.35
10.26
122
8
1930
2018
2019
2018
top-tenth
11
49.80
39.24
10.56
124
6
1930
2018
2019
2018
top-tenth
12
52.84
42.59
10.25
121
9
1930
2018
2019
2018
top-tenth
18
72.14
64.07
8.07
112
17
1930
2018
2017
2019
top-third
1903
24
95.54
85.13
10.41
112
17
1931
2004
2017
2019
top-third
36
160.16
127.64
32.52
127
1
1931
2020
2019
2020
highest
48
201.37
170.14
31.23
125
2
1966
2021
2019
2020
top-tenth
60
243.03
212.69
30.34
123
3
1966
2022
2019
1975
top-tenth