Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Wyoming

Precipitation Rankings, September 1988

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1988
1-Month
1.04"
(26.42mm)
1.24"
(31.50mm)
-0.20"
(-5.08mm)
58th Driest
Driest since:
1979
71st Wettest
Wettest since:
1923
Aug–Sep 1988
2-Month
1.56"
(39.62mm)
2.31"
(58.67mm)
-0.75"
(-19.05mm)
33rd Driest
Driest since:
2012
96th Wettest
Wettest since:
1923
Jul–Sep 1988
3-Month
2.10"
(53.34mm)
3.59"
(91.19mm)
-1.49"
(-37.85mm)
5th Driest
Driest since:
1964
124th Wettest
Wettest since:
1923
Jun–Sep 1988
4-Month
2.95"
(74.93mm)
5.43"
(137.92mm)
-2.48"
(-62.99mm)
2nd Driest
Driest since:
2012
127th Wettest
Wettest since:
1923
May–Sep 1988
5-Month
4.84"
(122.94mm)
7.64"
(194.06mm)
-2.80"
(-71.12mm)
10th Driest
Driest since:
1919
119th Wettest
Wettest since:
1915
Apr–Sep 1988
6-Month
6.13"
(155.70mm)
9.42"
(239.27mm)
-3.29"
(-83.57mm)
10th Driest
Driest since:
2012
119th Wettest
Wettest since:
1941
Mar–Sep 1988
7-Month
7.39"
(187.71mm)
10.67"
(271.02mm)
-3.28"
(-83.31mm)
10th Driest
Driest since:
2012
119th Wettest
Wettest since:
1941
Feb–Sep 1988
8-Month
8.11"
(205.99mm)
11.63"
(295.40mm)
-3.52"
(-89.41mm)
6th Driest
Driest since:
2012
123rd Wettest
Wettest since:
1945
Jan–Sep 1988
9-Month
8.99"
(228.35mm)
12.70"
(322.58mm)
-3.71"
(-94.23mm)
6th Driest
Driest since:
1919
123rd Wettest
Wettest since:
1915, 1945
Dec 1987–Sep 1988
10-Month
10.15"
(257.81mm)
13.71"
(348.23mm)
-3.56"
(-90.42mm)
11th Driest
Driest since:
1919
117th Wettest
Wettest since:
1923
Nov 1987–Sep 1988
11-Month
11.25"
(285.75mm)
14.74"
(374.40mm)
-3.49"
(-88.65mm)
11th Driest
Driest since:
1919
117th Wettest
Wettest since:
1923
Oct 1987–Sep 1988
12-Month
11.75"
(298.45mm)
15.94"
(404.88mm)
-4.19"
(-106.43mm)
5th Driest
Driest since:
1919
123rd Wettest
Wettest since:
1995
Apr 1987–Sep 1988
18-Month
20.62"
(523.75mm)
25.35"
(643.89mm)
-4.73"
(-120.14mm)
12th Driest
Driest since:
2021
116th Wettest
Wettest since:
1945
Oct 1986–Sep 1988
24-Month
27.27"
(692.66mm)
31.88"
(809.75mm)
-4.61"
(-117.09mm)
16th Driest
Driest since:
2002
111th Wettest
Wettest since:
1998
Oct 1985–Sep 1988
36-Month
45.63"
(1,159.00mm)
47.81"
(1,214.37mm)
-2.18"
(-55.37mm)
39th Driest
Driest since:
2002
87th Wettest
Wettest since:
1997
Oct 1984–Sep 1988
48-Month
58.72"
(1,491.49mm)
63.72"
(1,618.49mm)
-5.00"
(-127.00mm)
23rd Driest
Driest since:
2003
102nd Wettest
Wettest since:
1998
Oct 1983–Sep 1988
60-Month
76.99"
(1,955.55mm)
79.56"
(2,020.82mm)
-2.57"
(-65.27mm)
43rd Driest
Driest since:
2004
81st Wettest
Wettest since:
1999

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