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 1940

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1940
1-Month
0.50"
(12.70mm)
0.92"
(23.37mm)
-0.42"
(-10.67mm)
28th Driest Driest since: 1937 1924
98th Wettest Wettest since: 1939 1998
Ties: 1903, 1919, 1928, 1999
Apr–May 1940
2-Month
1.85"
(46.99mm)
2.26"
(57.40mm)
-0.41"
(-10.41mm)
51st Driest Driest since: 1939 1909
75th Wettest Wettest since: 1938 1896
Mar–May 1940
3-Month
4.41"
(112.01mm)
4.59"
(116.59mm)
-0.18"
(-4.58mm)
65th Driest Driest since: 1939 2008
61st Wettest Wettest since: 1938 1995
Feb–May 1940
4-Month
9.71"
(246.63mm)
7.31"
(185.67mm)
2.40"
(60.96mm)
108th Driest Driest since: 1939 1997
18th Wettest Wettest since: 1938 1998
Jan–May 1940
5-Month
14.76"
(374.90mm)
10.29"
(261.37mm)
4.47"
(113.53mm)
110th Driest Driest since: 1939 2013
16th Wettest Wettest since: 1938 1998
Dec 1939–May 1940
6-Month
16.74"
(425.20mm)
12.84"
(326.14mm)
3.90"
(99.06mm)
103rd Driest Driest since: 1939 1924
22nd Wettest Wettest since: 1938 1995
Nov 1939–May 1940
7-Month
17.13"
(435.10mm)
14.71"
(373.63mm)
2.42"
(61.47mm)
91st Driest Driest since: 1939 1977
34th Wettest Wettest since: 1938 1995
Oct 1939–May 1940
8-Month
18.26"
(463.80mm)
15.74"
(399.80mm)
2.52"
(64.00mm)
91st Driest Driest since: 1939 1977
34th Wettest Wettest since: 1938 1983
Sep 1939–May 1940
9-Month
19.46"
(494.28mm)
16.23"
(412.24mm)
3.23"
(82.04mm)
100th Driest Driest since: 1939 1924
25th Wettest Wettest since: 1938 1983
Ties: 1973
Aug 1939–May 1940
10-Month
19.79"
(502.67mm)
16.62"
(422.15mm)
3.17"
(80.52mm)
99th Driest Driest since: 1939 1924
26th Wettest Wettest since: 1938 1983
Jul 1939–May 1940
11-Month
20.19"
(512.83mm)
16.95"
(430.53mm)
3.24"
(82.30mm)
100th Driest Driest since: 1939 1924
25th Wettest Wettest since: 1938 1983
Jun 1939–May 1940
12-Month
20.36"
(517.14mm)
17.44"
(442.98mm)
2.92"
(74.16mm)
98th Driest Driest since: 1939 1924
27th Wettest Wettest since: 1938 1983
Dec 1938–May 1940
18-Month
29.58"
(751.33mm)
30.25"
(768.35mm)
-0.67"
(-17.02mm)
63rd Driest Driest since: 1935 1977
61st Wettest Wettest since: 1939 1983
Jun 1938–May 1940
24-Month
33.75"
(857.25mm)
34.89"
(886.21mm)
-1.14"
(-28.96mm)
55th Driest Driest since: 1935 1977
69th Wettest Wettest since: 1939 1983
Jun 1937–May 1940
36-Month
58.61"
(1,488.69mm)
52.30"
(1,328.42mm)
6.31"
(160.27mm)
96th Driest Driest since: 1939 2014
27th Wettest Wettest since: 1938 1984
Jun 1936–May 1940
48-Month
77.49"
(1,968.25mm)
69.56"
(1,766.82mm)
7.93"
(201.43mm)
98th Driest Driest since: 1939 2015
24th Wettest Wettest since: 1938 1998
Jun 1935–May 1940
60-Month
93.92"
(2,385.57mm)
86.83"
(2,205.48mm)
7.09"
(180.09mm)
95th Driest Driest since: 1939 1933
26th Wettest Wettest since: 1911 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published November 2019, retrieved on November 14, 2019 from https://www.ncdc.noaa.gov/cag/