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 September 2019. For more information, please see Climatological Rankings.


Maryland

Precipitation Rankings, May 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1999
1-Month
1.53"
(38.86mm)
3.73"
(94.74mm)
-2.20"
(-55.88mm)
6th Driest Driest since: 1986 1964
120th Wettest Wettest since: 1998 2018
Apr–May 1999
2-Month
4.57"
(116.08mm)
7.21"
(183.13mm)
-2.64"
(-67.05mm)
10th Driest Driest since: 1991 1963
116th Wettest Wettest since: 1998 1983
Mar–May 1999
3-Month
8.88"
(225.55mm)
10.99"
(279.15mm)
-2.11"
(-53.60mm)
22nd Driest Driest since: 1995 1986
104th Wettest Wettest since: 1998 1983
Feb–May 1999
4-Month
11.44"
(290.58mm)
13.88"
(352.55mm)
-2.44"
(-61.97mm)
24th Driest Driest since: 1995 2006
102nd Wettest Wettest since: 1998 1983
Jan–May 1999
5-Month
16.84"
(427.74mm)
17.23"
(437.64mm)
-0.39"
(-9.90mm)
66th Driest Driest since: 1997 1969
60th Wettest Wettest since: 1998 1998
Dec 1998–May 1999
6-Month
18.95"
(481.33mm)
20.52"
(521.21mm)
-1.57"
(-39.88mm)
38th Driest Driest since: 1995 1986
87th Wettest Wettest since: 1998 1984
Nov 1998–May 1999
7-Month
19.99"
(507.75mm)
23.51"
(597.15mm)
-3.52"
(-89.40mm)
29th Driest Driest since: 1995 1977
96th Wettest Wettest since: 1998 1998
Oct 1998–May 1999
8-Month
21.76"
(552.70mm)
26.64"
(676.66mm)
-4.88"
(-123.96mm)
13th Driest Driest since: 1995 1925
112th Wettest Wettest since: 1998 1984
Sep 1998–May 1999
9-Month
23.54"
(597.92mm)
30.19"
(766.83mm)
-6.65"
(-168.91mm)
9th Driest Driest since: 1969 2002
116th Wettest Wettest since: 1998 2019
Aug 1998–May 1999
10-Month
25.88"
(657.35mm)
34.56"
(877.82mm)
-8.68"
(-220.47mm)
3rd Driest Driest since: 1931 1931
122nd Wettest Wettest since: 1998 2019
Jul 1998–May 1999
11-Month
28.10"
(713.74mm)
38.72"
(983.49mm)
-10.62"
(-269.75mm)
2nd Driest Driest since: 1931 1931
123rd Wettest Wettest since: 1998 2019
Jun 1998–May 1999
12-Month
33.09"
(840.49mm)
42.56"
(1,081.02mm)
-9.47"
(-240.53mm)
2nd Driest Driest since: 1931 1931
123rd Wettest Wettest since: 1998 2019
Dec 1997–May 1999
18-Month
61.78"
(1,569.21mm)
63.04"
(1,601.22mm)
-1.26"
(-32.01mm)
50th Driest Driest since: 1992 1931
74th Wettest Wettest since: 1998 2019
Jun 1997–May 1999
24-Month
83.02"
(2,108.71mm)
85.05"
(2,160.27mm)
-2.03"
(-51.56mm)
42nd Driest Driest since: 1992 1931
82nd Wettest Wettest since: 1998 2019
Jun 1996–May 1999
36-Month
135.51"
(3,441.95mm)
127.65"
(3,242.31mm)
7.86"
(199.64mm)
96th Driest Driest since: 1996 1967
27th Wettest Wettest since: 1998 2005
Jun 1995–May 1999
48-Month
182.11"
(4,625.59mm)
170.18"
(4,322.57mm)
11.93"
(303.02mm)
98th Driest Driest since: 1996 1966
24th Wettest Wettest since: 1998 2019
Jun 1994–May 1999
60-Month
219.38"
(5,572.25mm)
212.57"
(5,399.28mm)
6.81"
(172.97mm)
77th Driest Driest since: 1996 1969
44th Wettest Wettest since: 1998 1976

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 13, 2019 from https://www.ncdc.noaa.gov/cag/