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 August 2022. For more information, please see Climatological Rankings.


West Climate Region

Precipitation Rankings, May 1991

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1991
1-Month
1.17"
(29.72mm)
0.92"
(23.37mm)
0.25"
(6.35mm)
92nd Driest Driest since: 1989 1924
37th Wettest Wettest since: 1990 1998
Apr–May 1991
2-Month
1.90"
(48.26mm)
2.26"
(57.40mm)
-0.36"
(-9.14mm)
55th Driest Driest since: 1989 1909
74th Wettest Wettest since: 1990 1896
Ties: 1960
Mar–May 1991
3-Month
8.12"
(206.25mm)
4.59"
(116.59mm)
3.53"
(89.66mm)
124th Driest Driest since: 1990 2008
5th Wettest Wettest since: 1983 1995
Feb–May 1991
4-Month
9.67"
(245.62mm)
7.31"
(185.67mm)
2.36"
(59.95mm)
110th Driest Driest since: 1990 1997
19th Wettest Wettest since: 1986 1998
Jan–May 1991
5-Month
10.44"
(265.18mm)
10.29"
(261.37mm)
0.15"
(3.81mm)
79th Driest Driest since: 1990 2022
50th Wettest Wettest since: 1986 1998
Dec 1990–May 1991
6-Month
11.21"
(284.73mm)
12.84"
(326.14mm)
-1.63"
(-41.41mm)
55th Driest Driest since: 1990 1924
73rd Wettest Wettest since: 1986 1995
Nov 1990–May 1991
7-Month
11.81"
(299.97mm)
14.71"
(373.63mm)
-2.90"
(-73.66mm)
41st Driest Driest since: 1990 1977
87th Wettest Wettest since: 1989 1995
Oct 1990–May 1991
8-Month
12.21"
(310.13mm)
15.74"
(399.80mm)
-3.53"
(-89.67mm)
34th Driest Driest since: 1990 1977
94th Wettest Wettest since: 1989 1983
Sep 1990–May 1991
9-Month
12.72"
(323.09mm)
16.23"
(412.24mm)
-3.51"
(-89.15mm)
35th Driest Driest since: 1990 2021
93rd Wettest Wettest since: 1989 1983
Aug 1990–May 1991
10-Month
13.19"
(335.03mm)
16.62"
(422.15mm)
-3.43"
(-87.12mm)
38th Driest Driest since: 1990 2021
90th Wettest Wettest since: 1989 1983
Jul 1990–May 1991
11-Month
13.59"
(345.19mm)
16.95"
(430.53mm)
-3.36"
(-85.34mm)
36th Driest Driest since: 1990 2021
92nd Wettest Wettest since: 1989 1983
Jun 1990–May 1991
12-Month
13.93"
(353.82mm)
17.44"
(442.98mm)
-3.51"
(-89.16mm)
35th Driest Driest since: 1990 2021
93rd Wettest Wettest since: 1989 1983
Dec 1989–May 1991
18-Month
22.54"
(572.52mm)
30.25"
(768.35mm)
-7.71"
(-195.83mm)
13th Driest Driest since: 1977 1977
114th Wettest Wettest since: 1990 1983
Jun 1989–May 1991
24-Month
26.92"
(683.77mm)
34.89"
(886.21mm)
-7.97"
(-202.44mm)
16th Driest Driest since: 1977 2022
111th Wettest Wettest since: 1990 1983
Jun 1988–May 1991
36-Month
41.21"
(1,046.73mm)
52.30"
(1,328.42mm)
-11.09"
(-281.69mm)
9th Driest Driest since: 1977 2022
117th Wettest Wettest since: 1990 1984
Jun 1987–May 1991
48-Month
56.05"
(1,423.67mm)
69.56"
(1,766.82mm)
-13.51"
(-343.15mm)
10th Driest Driest since: 1990 2015
115th Wettest Wettest since: 1989 1998
Jun 1986–May 1991
60-Month
68.93"
(1,750.82mm)
86.83"
(2,205.48mm)
-17.90"
(-454.66mm)
3rd Driest Driest since: 1934 1933
121st Wettest Wettest since: 1990 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, Precipitation, published September 2022, retrieved on October 4, 2022 from https://www.ncdc.noaa.gov/cag/