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 1978

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1978
1-Month
0.38"
(9.65mm)
0.92"
(23.37mm)
-0.54"
(-13.72mm)
16th Driest Driest since: 1974 1924
113th Wettest Wettest since: 1977 1998
Ties: 1997, 2022
Apr–May 1978
2-Month
3.39"
(86.11mm)
2.26"
(57.40mm)
1.13"
(28.71mm)
106th Driest Driest since: 1977 1909
23rd Wettest Wettest since: 1967 1896
Mar–May 1978
3-Month
7.81"
(198.37mm)
4.59"
(116.59mm)
3.22"
(81.78mm)
122nd Driest Driest since: 1977 2008
7th Wettest Wettest since: 1938 1995
Feb–May 1978
4-Month
12.00"
(304.80mm)
7.31"
(185.67mm)
4.69"
(119.13mm)
120th Driest Driest since: 1977 1997
9th Wettest Wettest since: 1958 1998
Jan–May 1978
5-Month
17.38"
(441.45mm)
10.29"
(261.37mm)
7.09"
(180.08mm)
125th Driest Driest since: 1977 2022
4th Wettest Wettest to Date 1998
Dec 1977–May 1978
6-Month
21.54"
(547.12mm)
12.84"
(326.14mm)
8.70"
(220.98mm)
124th Driest Driest since: 1977 1924
4th Wettest Wettest since: 1941 1995
Nov 1977–May 1978
7-Month
23.09"
(586.49mm)
14.71"
(373.63mm)
8.38"
(212.86mm)
124th Driest Driest since: 1977 1977
4th Wettest Wettest to Date 1995
Oct 1977–May 1978
8-Month
23.43"
(595.12mm)
15.74"
(399.80mm)
7.69"
(195.32mm)
121st Driest Driest since: 1977 1977
7th Wettest Wettest since: 1941 1983
Sep 1977–May 1978
9-Month
24.10"
(612.14mm)
16.23"
(412.24mm)
7.87"
(199.90mm)
122nd Driest Driest since: 1977 2021
6th Wettest Wettest since: 1941 1983
Aug 1977–May 1978
10-Month
25.13"
(638.30mm)
16.62"
(422.15mm)
8.51"
(216.15mm)
124th Driest Driest since: 1977 2021
4th Wettest Wettest to Date 1983
Jul 1977–May 1978
11-Month
25.36"
(644.14mm)
16.95"
(430.53mm)
8.41"
(213.61mm)
124th Driest Driest since: 1977 2021
4th Wettest Wettest to Date 1983
Jun 1977–May 1978
12-Month
26.05"
(661.67mm)
17.44"
(442.98mm)
8.61"
(218.69mm)
124th Driest Driest since: 1977 2021
4th Wettest Wettest to Date 1983
Dec 1976–May 1978
18-Month
32.11"
(815.59mm)
30.25"
(768.35mm)
1.86"
(47.24mm)
86th Driest Driest since: 1977 1977
41st Wettest Wettest since: 1974 1983
Jun 1976–May 1978
24-Month
36.63"
(930.40mm)
34.89"
(886.21mm)
1.74"
(44.19mm)
87th Driest Driest since: 1977 2022
40th Wettest Wettest since: 1975 1983
Jun 1975–May 1978
36-Month
48.27"
(1,226.06mm)
52.30"
(1,328.42mm)
-4.03"
(-102.36mm)
46th Driest Driest since: 1977 2022
80th Wettest Wettest since: 1976 1984
Jun 1974–May 1978
48-Month
65.31"
(1,658.87mm)
69.56"
(1,766.82mm)
-4.25"
(-107.95mm)
50th Driest Driest since: 1977 2015
75th Wettest Wettest since: 1976 1998
Jun 1973–May 1978
60-Month
85.09"
(2,161.29mm)
86.83"
(2,205.48mm)
-1.74"
(-44.19mm)
65th Driest Driest since: 1977 1933
59th Wettest Wettest since: 1975 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/