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 1927

View Period (Months):
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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
September 1927
1-Month
2.14"
(54.36mm)
1.24"
(31.50mm)
0.90"
(22.86mm)
116th Driest
Driest since:
1979
13th Wettest
Wettest since:
1923
Aug–Sep 1927
2-Month
3.88"
(98.55mm)
2.31"
(58.67mm)
1.57"
(39.88mm)
120th Driest
Driest since:
2012
9th Wettest
Wettest since:
1923
Jul–Sep 1927
3-Month
5.35"
(135.89mm)
3.59"
(91.19mm)
1.76"
(44.70mm)
119th Driest
Driest since:
1964
10th Wettest
Wettest since:
1923
Ties: 1926
Jun–Sep 1927
4-Month
7.63"
(193.80mm)
5.43"
(137.92mm)
2.20"
(55.88mm)
119th Driest
Driest since:
2012
10th Wettest
Wettest since:
1923
May–Sep 1927
5-Month
9.95"
(252.73mm)
7.64"
(194.06mm)
2.31"
(58.67mm)
118th Driest
Driest since:
1919
11th Wettest
Wettest since:
1915
Apr–Sep 1927
6-Month
12.37"
(314.20mm)
9.42"
(239.27mm)
2.95"
(74.93mm)
122nd Driest
Driest since:
2012
7th Wettest
Wettest since:
1941
Mar–Sep 1927
7-Month
13.67"
(347.22mm)
10.67"
(271.02mm)
3.00"
(76.20mm)
121st Driest
Driest since:
2012
8th Wettest
Wettest since:
1941
Feb–Sep 1927
8-Month
15.08"
(383.03mm)
11.63"
(295.40mm)
3.45"
(87.63mm)
123rd Driest
Driest since:
2012
6th Wettest
Wettest since:
1945
Jan–Sep 1927
9-Month
16.19"
(411.23mm)
12.70"
(322.58mm)
3.49"
(88.65mm)
124th Driest
Driest since:
1919
5th Wettest
Wettest since:
1915, 1945
Dec 1926–Sep 1927
10-Month
17.03"
(432.56mm)
13.71"
(348.23mm)
3.32"
(84.33mm)
120th Driest
Driest since:
1919
8th Wettest
Wettest since:
1923
Nov 1926–Sep 1927
11-Month
18.70"
(474.98mm)
14.74"
(374.40mm)
3.96"
(100.58mm)
124th Driest
Driest since:
1919
4th Wettest
Wettest since:
1923
Oct 1926–Sep 1927
12-Month
19.64"
(498.86mm)
15.94"
(404.88mm)
3.70"
(93.98mm)
123rd Driest
Driest since:
1919
5th Wettest
Wettest since:
1995
Ties: 1982
Apr 1926–Sep 1927
18-Month
30.34"
(770.64mm)
25.35"
(643.89mm)
4.99"
(126.75mm)
126th Driest
Driest since:
2021
2nd Wettest
Wettest to Date
1945
Oct 1925–Sep 1927
24-Month
36.86"
(936.24mm)
31.88"
(809.75mm)
4.98"
(126.49mm)
123rd Driest
Driest since:
2002
4th Wettest
Wettest to Date
1998
Oct 1924–Sep 1927
36-Month
55.06"
(1,398.52mm)
47.81"
(1,214.37mm)
7.25"
(184.15mm)
122nd Driest
Driest since:
2002
4th Wettest
Wettest to Date
1997
Oct 1923–Sep 1927
48-Month
67.56"
(1,716.02mm)
63.72"
(1,618.49mm)
3.84"
(97.53mm)
95th Driest
Driest since:
2003
30th Wettest
Wettest since:
1998
Oct 1922–Sep 1927
60-Month
87.50"
(2,222.50mm)
79.56"
(2,020.82mm)
7.94"
(201.68mm)
112th Driest
Driest since:
2004
12th Wettest
Wettest to Date
1999

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