Climate at a Glance

Statewide 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 July 2020. For more information, please see Climatological Rankings.


Wyoming

Precipitation Rankings, May 1999

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
May 1999
1-Month
2.18"
(55.37mm)
2.21"
(56.13mm)
-0.03"
(-0.76mm)
70th Driest Driest since: 1998 1936
57th Wettest Wettest since: 1996 1908
Apr–May 1999
2-Month
5.49"
(139.45mm)
3.99"
(101.35mm)
1.50"
(38.10mm)
113th Driest Driest since: 1998 1936
14th Wettest Wettest since: 1995 2011
Mar–May 1999
3-Month
6.24"
(158.50mm)
5.24"
(133.10mm)
1.00"
(25.40mm)
100th Driest Driest since: 1998 1919
27th Wettest Wettest since: 1995 2011
Ties: 1942, 2008
Feb–May 1999
4-Month
7.41"
(188.21mm)
6.21"
(157.73mm)
1.20"
(30.48mm)
105th Driest Driest since: 1998 1966
22nd Wettest Wettest since: 1995 2011
Jan–May 1999
5-Month
8.63"
(219.20mm)
7.27"
(184.66mm)
1.36"
(34.54mm)
109th Driest Driest since: 1998 1919
18th Wettest Wettest since: 1995 2011
Dec 1998–May 1999
6-Month
9.47"
(240.54mm)
8.28"
(210.31mm)
1.19"
(30.23mm)
99th Driest Driest since: 1998 1919
27th Wettest Wettest since: 1997 2011
Nov 1998–May 1999
7-Month
10.68"
(271.27mm)
9.31"
(236.47mm)
1.37"
(34.80mm)
99th Driest Driest since: 1998 1919
27th Wettest Wettest since: 1997 2011
Oct 1998–May 1999
8-Month
13.49"
(342.65mm)
10.51"
(266.95mm)
2.98"
(75.70mm)
120th Driest Driest since: 1998 1966
6th Wettest Wettest since: 1995 1995
Sep 1998–May 1999
9-Month
14.83"
(376.68mm)
11.75"
(298.45mm)
3.08"
(78.23mm)
120th Driest Driest since: 1998 1934
6th Wettest Wettest since: 1995 2017
Aug 1998–May 1999
10-Month
16.20"
(411.48mm)
12.81"
(325.37mm)
3.39"
(86.11mm)
121st Driest Driest since: 1998 1934
5th Wettest Wettest since: 1995 2017
Jul 1998–May 1999
11-Month
17.94"
(455.68mm)
14.10"
(358.14mm)
3.84"
(97.54mm)
123rd Driest Driest since: 1998 1934
3rd Wettest Wettest since: 1978 1978
Jun 1998–May 1999
12-Month
21.27"
(540.26mm)
15.93"
(404.62mm)
5.34"
(135.64mm)
125th Driest Driest since: 1998 1934
1st Wettest Wettest to Date 1999
Dec 1997–May 1999
18-Month
29.09"
(738.89mm)
24.21"
(614.93mm)
4.88"
(123.96mm)
123rd Driest Driest since: 1998 1961
2nd Wettest Wettest since: 1996 1996
Jun 1997–May 1999
24-Month
38.86"
(987.04mm)
31.86"
(809.24mm)
7.00"
(177.80mm)
124th Driest Driest since: 1998 2002
1st Wettest Wettest to Date 1999
Jun 1996–May 1999
36-Month
54.92"
(1,394.97mm)
47.75"
(1,212.85mm)
7.17"
(182.12mm)
121st Driest Driest since: 1998 2003
3rd Wettest Wettest since: 1948 1929
Jun 1995–May 1999
48-Month
73.77"
(1,873.76mm)
63.62"
(1,615.95mm)
10.15"
(257.81mm)
122nd Driest Driest since: 1998 2004
1st Wettest Wettest to Date 1999
Jun 1994–May 1999
60-Month
92.31"
(2,344.67mm)
79.48"
(2,018.79mm)
12.83"
(325.88mm)
121st Driest Driest since: 1998 2004
1st Wettest Wettest to Date 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2020, retrieved on August 9, 2020 from https://www.ncdc.noaa.gov/cag/