Climate at a Glance

National 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 July 2020. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, May 1909

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
May 1909
1-Month
3.04"
(77.22mm)
2.91"
(73.91mm)
0.13"
(3.31mm)
78th Driest Driest since: 1904 1934
49th Wettest Wettest since: 1908 2019
Apr–May 1909
2-Month
5.32"
(135.13mm)
5.43"
(137.92mm)
-0.11"
(-2.79mm)
59th Driest Driest since: 1906 1934
68th Wettest Wettest since: 1908 1957
Ties: 1917
Mar–May 1909
3-Month
7.53"
(191.26mm)
7.94"
(201.68mm)
-0.41"
(-10.42mm)
42nd Driest Driest since: 1901 1925
85th Wettest Wettest since: 1908 1957, 1991
Ties: 1940
Feb–May 1909
4-Month
10.41"
(264.41mm)
10.07"
(255.78mm)
0.34"
(8.63mm)
81st Driest Driest since: 1907 1925
46th Wettest Wettest since: 1908 2019
Jan–May 1909
5-Month
13.15"
(334.01mm)
12.39"
(314.71mm)
0.76"
(19.30mm)
95th Driest Driest since: 1907 1934
32nd Wettest Wettest since: 1908 2019
Dec 1908–May 1909
6-Month
14.88"
(377.95mm)
14.73"
(374.14mm)
0.15"
(3.81mm)
68th Driest Driest since: 1904 1931
58th Wettest Wettest since: 1908 2019
Ties: 1943
Nov 1908–May 1909
7-Month
16.55"
(420.37mm)
16.96"
(430.78mm)
-0.41"
(-10.41mm)
50th Driest Driest since: 1904 1934
76th Wettest Wettest since: 1908 1983
Ties: 1961
Oct 1908–May 1909
8-Month
18.58"
(471.93mm)
19.13"
(485.90mm)
-0.55"
(-13.97mm)
44th Driest Driest since: 1904 1934
82nd Wettest Wettest since: 1908 2019
Sep 1908–May 1909
9-Month
20.41"
(518.41mm)
21.62"
(549.15mm)
-1.21"
(-30.74mm)
31st Driest Driest since: 1904 1934
95th Wettest Wettest since: 1908 2019
Aug 1908–May 1909
10-Month
23.29"
(591.57mm)
24.25"
(615.95mm)
-0.96"
(-24.38mm)
38th Driest Driest since: 1904 1918
88th Wettest Wettest since: 1908 2019
Jul 1908–May 1909
11-Month
26.30"
(668.02mm)
27.03"
(686.56mm)
-0.73"
(-18.54mm)
38th Driest Driest since: 1904 1931
88th Wettest Wettest since: 1908 2019
Jun 1908–May 1909
12-Month
29.32"
(744.73mm)
29.95"
(760.73mm)
-0.63"
(-16.00mm)
43rd Driest Driest since: 1904 1934
83rd Wettest Wettest since: 1908 2019
Dec 1907–May 1909
18-Month
45.64"
(1,159.26mm)
44.70"
(1,135.38mm)
0.94"
(23.88mm)
75th Driest Driest since: 1905 1931
50th Wettest Wettest since: 1908 2019
Ties: 1897, 1952
Jun 1907–May 1909
24-Month
61.10"
(1,551.94mm)
59.92"
(1,521.97mm)
1.18"
(29.97mm)
74th Driest Driest since: 1905 1931
51st Wettest Wettest since: 1908 2020
Jun 1906–May 1909
36-Month
93.98"
(2,387.09mm)
89.88"
(2,282.95mm)
4.10"
(104.14mm)
99th Driest Driest since: 1906 1955
25th Wettest Wettest since: 1908 2019
Jun 1905–May 1909
48-Month
125.32"
(3,183.13mm)
119.78"
(3,042.41mm)
5.54"
(140.72mm)
101st Driest Driest since: 1907 1956
22nd Wettest Wettest since: 1908 2019
Jun 1904–May 1909
60-Month
155.23"
(3,942.84mm)
149.64"
(3,800.86mm)
5.59"
(141.98mm)
98th Driest Driest since: 1908 1957
24th Wettest Wettest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published August 2020, retrieved on August 12, 2020 from https://www.ncdc.noaa.gov/cag/