Climate at a Glance

Regional 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 October 2019. For more information, please see Climatological Rankings.


West Climate Region

Precipitation Rankings, May 1901

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1901
1-Month
0.96"
(24.38mm)
0.92"
(23.37mm)
0.04"
(1.01mm)
77th Driest Driest since: 1899 1924
49th Wettest Wettest since: 1900 1998
Apr–May 1901
2-Month
2.67"
(67.82mm)
2.26"
(57.40mm)
0.41"
(10.42mm)
89th Driest Driest since: 1899 1909
37th Wettest Wettest since: 1900 1896
Ties: 1994
Mar–May 1901
3-Month
3.54"
(89.92mm)
4.59"
(116.59mm)
-1.05"
(-26.67mm)
40th Driest Driest since: 1898 2008
86th Wettest Wettest since: 1900 1995
Ties: 1964
Feb–May 1901
4-Month
7.81"
(198.37mm)
7.31"
(185.67mm)
0.50"
(12.70mm)
79th Driest Driest since: 1900 1997
47th Wettest Wettest since: 1897 1998
Jan–May 1901
5-Month
11.51"
(292.35mm)
10.29"
(261.37mm)
1.22"
(30.98mm)
87th Driest Driest since: 1900 2013
39th Wettest Wettest since: 1896 1998
Dec 1900–May 1901
6-Month
12.63"
(320.80mm)
12.84"
(326.14mm)
-0.21"
(-5.34mm)
69th Driest Driest since: 1900 1924
56th Wettest Wettest since: 1897 1995
Nov 1900–May 1901
7-Month
16.04"
(407.42mm)
14.71"
(373.63mm)
1.33"
(33.79mm)
82nd Driest Driest since: 1900 1977
43rd Wettest Wettest since: 1897 1995
Oct 1900–May 1901
8-Month
17.95"
(455.93mm)
15.74"
(399.80mm)
2.21"
(56.13mm)
90th Driest Driest since: 1900 1977
35th Wettest Wettest to Date 1983
Ties: 1997
Sep 1900–May 1901
9-Month
18.29"
(464.57mm)
16.23"
(412.24mm)
2.06"
(52.33mm)
90th Driest Driest since: 1900 1924
35th Wettest Wettest to Date 1983
Aug 1900–May 1901
10-Month
18.39"
(467.11mm)
16.62"
(422.15mm)
1.77"
(44.96mm)
86th Driest Driest since: 1900 1924
39th Wettest Wettest since: 1897 1983
Jul 1900–May 1901
11-Month
18.72"
(475.49mm)
16.95"
(430.53mm)
1.77"
(44.96mm)
87th Driest Driest since: 1900 1924
38th Wettest Wettest since: 1897 1983
Ties: 1921
Jun 1900–May 1901
12-Month
19.05"
(483.87mm)
17.44"
(442.98mm)
1.61"
(40.89mm)
85th Driest Driest since: 1900 1924
40th Wettest Wettest since: 1897 1983
Dec 1899–May 1901
18-Month
29.48"
(748.79mm)
30.25"
(768.35mm)
-0.77"
(-19.56mm)
62nd Driest Driest since: 1900 1977
62nd Wettest Wettest since: 1897 1983
Jun 1899–May 1901
24-Month
36.05"
(915.67mm)
34.89"
(886.21mm)
1.16"
(29.46mm)
73rd Driest Driest since: 1900 1977
51st Wettest Wettest since: 1897 1983
Jun 1898–May 1901
36-Month
50.35"
(1,278.89mm)
52.30"
(1,328.42mm)
-1.95"
(-49.53mm)
58th Driest Driest since: 1900 2014
65th Wettest Wettest since: 1898 1984
Jun 1897–May 1901
48-Month
63.65"
(1,616.71mm)
69.56"
(1,766.82mm)
-5.91"
(-150.11mm)
38th Driest Driest to Date 2015
84th Wettest Wettest since: 1900 1998
Jun 1896–May 1901
60-Month
82.98"
(2,107.69mm)
86.83"
(2,205.48mm)
-3.85"
(-97.79mm)
54th Driest Driest since: 1900 1933
67th Wettest Wettest to Date 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published November 2019, retrieved on November 19, 2019 from https://www.ncdc.noaa.gov/cag/