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 2015

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 2015
1-Month
1.42"
(36.07mm)
0.92"
(23.37mm)
0.50"
(12.70mm)
107th Driest Driest since: 2014 1924
22nd Wettest Wettest since: 2011 1998
Apr–May 2015
2-Month
2.33"
(59.18mm)
2.26"
(57.40mm)
0.07"
(1.78mm)
76th Driest Driest since: 2014 1909
53rd Wettest Wettest since: 2011 1896
Ties: 1944, 2000
Mar–May 2015
3-Month
2.95"
(74.93mm)
4.59"
(116.59mm)
-1.64"
(-41.66mm)
25th Driest Driest since: 2013 2008
104th Wettest Wettest since: 2014 1995
Feb–May 2015
4-Month
4.87"
(123.70mm)
7.31"
(185.67mm)
-2.44"
(-61.97mm)
25th Driest Driest since: 2013 1997
104th Wettest Wettest since: 2014 1998
Jan–May 2015
5-Month
5.46"
(138.68mm)
10.29"
(261.37mm)
-4.83"
(-122.69mm)
9th Driest Driest since: 2013 2022
120th Wettest Wettest since: 2014 1998
Ties: 1947
Dec 2014–May 2015
6-Month
9.71"
(246.63mm)
12.84"
(326.14mm)
-3.13"
(-79.51mm)
32nd Driest Driest since: 2014 1924
96th Wettest Wettest since: 2011 1995
Nov 2014–May 2015
7-Month
11.09"
(281.69mm)
14.71"
(373.63mm)
-3.62"
(-91.94mm)
25th Driest Driest since: 2014 1977
103rd Wettest Wettest since: 2011 1995
Oct 2014–May 2015
8-Month
11.76"
(298.70mm)
15.74"
(399.80mm)
-3.98"
(-101.10mm)
26th Driest Driest since: 2014 1977
102nd Wettest Wettest since: 2011 1983
Ties: 1939
Sep 2014–May 2015
9-Month
12.67"
(321.82mm)
16.23"
(412.24mm)
-3.56"
(-90.42mm)
33rd Driest Driest since: 2014 2021
95th Wettest Wettest since: 2011 1983
Aug 2014–May 2015
10-Month
13.55"
(344.17mm)
16.62"
(422.15mm)
-3.07"
(-77.98mm)
39th Driest Driest since: 2014 2021
89th Wettest Wettest since: 2011 1983
Jul 2014–May 2015
11-Month
14.00"
(355.60mm)
16.95"
(430.53mm)
-2.95"
(-74.93mm)
44th Driest Driest since: 2014 2021
84th Wettest Wettest since: 2011 1983
Jun 2014–May 2015
12-Month
14.08"
(357.63mm)
17.44"
(442.98mm)
-3.36"
(-85.35mm)
38th Driest Driest since: 2014 2021
90th Wettest Wettest since: 2011 1983
Dec 2013–May 2015
18-Month
21.78"
(553.21mm)
30.25"
(768.35mm)
-8.47"
(-215.14mm)
9th Driest Driest since: 2014 1977
118th Wettest Wettest since: 2012 1983
Jun 2013–May 2015
24-Month
25.27"
(641.86mm)
34.89"
(886.21mm)
-9.62"
(-244.35mm)
7th Driest Driest since: 2014 2022
120th Wettest Wettest since: 2013 1983
Jun 2012–May 2015
36-Month
38.11"
(967.99mm)
52.30"
(1,328.42mm)
-14.19"
(-360.43mm)
5th Driest Driest since: 2014 2022
121st Wettest Wettest since: 2013 1984
Jun 2011–May 2015
48-Month
50.83"
(1,291.08mm)
69.56"
(1,766.82mm)
-18.73"
(-475.74mm)
1st Driest Driest since: 2015 2015
124th Wettest Wettest since: 2014 1998
Jun 2010–May 2015
60-Month
72.49"
(1,841.25mm)
86.83"
(2,205.48mm)
-14.34"
(-364.23mm)
9th Driest Driest since: 1992 1933
115th Wettest Wettest since: 2014 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, Precipitation, published September 2022, retrieved on October 5, 2022 from https://www.ncdc.noaa.gov/cag/