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, June 1999

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
June 1999
1-Month 		2.17"
(55.12mm)		 1.84"
(46.74mm)		 0.33"
(8.38mm)		 94th Driest
Driest since:
 2012
35th Wettest
Wettest since:
 1967
May–Jun 1999
2-Month 		4.35"
(110.49mm)		 4.05"
(102.87mm)		 0.30"
(7.62mm)		 78th Driest
Driest since:
 1919
51st Wettest
Wettest since:
 1908
Apr–Jun 1999
3-Month 		7.66"
(194.56mm)		 5.82"
(147.83mm)		 1.84"
(46.73mm)		 114th Driest
Driest since:
 1919
15th Wettest
Wettest since:
 1957
Mar–Jun 1999
4-Month 		8.41"
(213.61mm)		 7.08"
(179.83mm)		 1.33"
(33.78mm)		 107th Driest
Driest since:
 1919
22nd Wettest
Wettest since:
 1995
Feb–Jun 1999
5-Month 		9.58"
(243.33mm)		 8.04"
(204.22mm)		 1.54"
(39.11mm)		 105th Driest
Driest since:
 1919
24th Wettest
Wettest since:
 1995
Jan–Jun 1999
6-Month 		10.80"
(274.32mm)		 9.10"
(231.14mm)		 1.70"
(43.18mm)		 107th Driest
Driest since:
 1919
22nd Wettest
Wettest since:
 1899, 1995
Dec 1998–Jun 1999
7-Month 		11.64"
(295.66mm)		 10.11"
(256.79mm)		 1.53"
(38.87mm)		 104th Driest
Driest since:
 1919
24th Wettest
Wettest since:
 2011
Nov 1998–Jun 1999
8-Month 		12.85"
(326.39mm)		 11.15"
(283.21mm)		 1.70"
(43.18mm)		 106th Driest
Driest since:
 1919
22nd Wettest
Wettest since:
 2011
Oct 1998–Jun 1999
9-Month 		15.66"
(397.76mm)		 12.34"
(313.44mm)		 3.32"
(84.32mm)		 123rd Driest
Driest since:
 1919
5th Wettest
Wettest since:
 1995
Sep 1998–Jun 1999
10-Month 		17.00"
(431.80mm)		 13.58"
(344.93mm)		 3.42"
(86.87mm)		 123rd Driest
Driest since:
 1934
5th Wettest
Wettest since:
 1995
Aug 1998–Jun 1999
11-Month 		18.37"
(466.60mm)		 14.65"
(372.11mm)		 3.72"
(94.49mm)		 124th Driest
Driest since:
 1919
4th Wettest
Wettest since:
 1995
Jul 1998–Jun 1999
12-Month 		20.11"
(510.79mm)		 15.94"
(404.88mm)		 4.17"
(105.91mm)		 126th Driest
Driest since:
 1934
2nd Wettest
Wettest since:
 1995
Jan 1998–Jun 1999
18-Month 		30.37"
(771.40mm)		 25.03"
(635.76mm)		 5.34"
(135.64mm)		 127th Driest
Driest since:
 2002
1st Wettest
Wettest to Date
 1999
Jul 1997–Jun 1999
24-Month 		38.89"
(987.81mm)		 31.87"
(809.50mm)		 7.02"
(178.31mm)		 126th Driest
Driest since:
 2002
1st Wettest
Wettest to Date
 1999
Jul 1996–Jun 1999
36-Month 		56.19"
(1,427.23mm)		 47.77"
(1,213.36mm)		 8.42"
(213.87mm)		 125th Driest
Driest since:
 2002
1st Wettest
Wettest to Date
 1999
Jul 1995–Jun 1999
48-Month 		73.23"
(1,860.04mm)		 63.65"
(1,616.71mm)		 9.58"
(243.33mm)		 123rd Driest
Driest since:
 2004
2nd Wettest
Wettest since:
 1998
Jul 1994–Jun 1999
60-Month 		93.56"
(2,376.42mm)		 79.51"
(2,019.55mm)		 14.05"
(356.87mm)		 123rd Driest
Driest since:
 2004
1st Wettest
Wettest to Date
 1999

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