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 March 2021. For more information, please see Climatological Rankings.


West Climate Region

Precipitation Rankings, May 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
May 1999
1-Month
0.50"
(12.70mm)
0.92"
(23.37mm)
-0.42"
(-10.67mm)
28th Driest Driest since: 1997 1924
99th Wettest Wettest since: 1998 1998
Ties: 1903, 1919, 1928, 1940
Apr–May 1999
2-Month
2.27"
(57.66mm)
2.26"
(57.40mm)
0.01"
(0.26mm)
70th Driest Driest since: 1997 1909
57th Wettest Wettest since: 1998 1896
Ties: 1977
Mar–May 1999
3-Month
3.84"
(97.54mm)
4.59"
(116.59mm)
-0.75"
(-19.05mm)
52nd Driest Driest since: 1997 2008
75th Wettest Wettest since: 1998 1995
Feb–May 1999
4-Month
7.08"
(179.83mm)
7.31"
(185.67mm)
-0.23"
(-5.84mm)
67th Driest Driest since: 1997 1997
60th Wettest Wettest since: 1998 1998
Jan–May 1999
5-Month
9.69"
(246.13mm)
10.29"
(261.37mm)
-0.60"
(-15.24mm)
65th Driest Driest since: 1997 2013
62nd Wettest Wettest since: 1998 1998
Dec 1998–May 1999
6-Month
10.83"
(275.08mm)
12.84"
(326.14mm)
-2.01"
(-51.06mm)
47th Driest Driest since: 1994 1924
79th Wettest Wettest since: 1998 1995
Nov 1998–May 1999
7-Month
13.74"
(349.00mm)
14.71"
(373.63mm)
-0.97"
(-24.63mm)
60th Driest Driest since: 1994 1977
66th Wettest Wettest since: 1998 1995
Oct 1998–May 1999
8-Month
14.65"
(372.11mm)
15.74"
(399.80mm)
-1.09"
(-27.69mm)
60th Driest Driest since: 1994 1977
66th Wettest Wettest since: 1998 1983
Sep 1998–May 1999
9-Month
15.86"
(402.84mm)
16.23"
(412.24mm)
-0.37"
(-9.40mm)
65th Driest Driest since: 1994 1924
61st Wettest Wettest since: 1998 1983
Aug 1998–May 1999
10-Month
16.05"
(407.67mm)
16.62"
(422.15mm)
-0.57"
(-14.48mm)
61st Driest Driest since: 1994 1924
65th Wettest Wettest since: 1998 1983
Jul 1998–May 1999
11-Month
16.53"
(419.86mm)
16.95"
(430.53mm)
-0.42"
(-10.67mm)
65th Driest Driest since: 1994 1924
61st Wettest Wettest since: 1998 1983
Jun 1998–May 1999
12-Month
17.71"
(449.83mm)
17.44"
(442.98mm)
0.27"
(6.85mm)
74th Driest Driest since: 1994 1924
52nd Wettest Wettest since: 1998 1983
Dec 1997–May 1999
18-Month
40.02"
(1,016.51mm)
30.25"
(768.35mm)
9.77"
(248.16mm)
116th Driest Driest since: 1997 1977
9th Wettest Wettest since: 1998 1983
Jun 1997–May 1999
24-Month
46.48"
(1,180.59mm)
34.89"
(886.21mm)
11.59"
(294.38mm)
120th Driest Driest since: 1997 1977
5th Wettest Wettest since: 1998 1983
Jun 1996–May 1999
36-Month
65.36"
(1,660.14mm)
52.30"
(1,328.42mm)
13.06"
(331.72mm)
117th Driest Driest since: 1997 2014
7th Wettest Wettest since: 1998 1984
Jun 1995–May 1999
48-Month
84.59"
(2,148.59mm)
69.56"
(1,766.82mm)
15.03"
(381.77mm)
116th Driest Driest since: 1997 2015
7th Wettest Wettest since: 1998 1998
Jun 1994–May 1999
60-Month
111.23"
(2,825.24mm)
86.83"
(2,205.48mm)
24.40"
(619.76mm)
121st Driest Driest since: 1998 1933
1st Wettest Wettest to Date 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published April 2021, retrieved on April 10, 2021 from https://www.ncdc.noaa.gov/cag/