Statewide Rankings

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Month:

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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, July 2021

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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
July 2021 1-Month	1.10" (27.94mm)	1.28" (32.51mm)	-0.18" (-4.57mm)	60th Driest	Driest since: 2020	2003
	1.10" (27.94mm)	1.28" (32.51mm)	-0.18" (-4.57mm)	69th Wettest	Wettest since: 2019	1937
	Ties: 1906, 1948
Jun–Jul 2021 2-Month	1.92" (48.77mm)	3.12" (79.25mm)	-1.20" (-30.48mm)	18th Driest	Driest since: 2016	1933
Jun–Jul 2021 2-Month	1.92" (48.77mm)	3.12" (79.25mm)	-1.20" (-30.48mm)	111th Wettest	Wettest since: 2020	1967
May–Jul 2021 3-Month	3.65" (92.71mm)	5.33" (135.38mm)	-1.68" (-42.67mm)	17th Driest	Driest since: 2020	1919
May–Jul 2021 3-Month	3.65" (92.71mm)	5.33" (135.38mm)	-1.68" (-42.67mm)	112th Wettest	Wettest since: 2019	1908
Apr–Jul 2021 4-Month	4.86" (123.44mm)	7.11" (180.59mm)	-2.25" (-57.15mm)	14th Driest	Driest since: 2012	1919
Apr–Jul 2021 4-Month	4.86" (123.44mm)	7.11" (180.59mm)	-2.25" (-57.15mm)	115th Wettest	Wettest since: 2020	1995
Mar–Jul 2021 5-Month	6.16" (156.46mm)	8.36" (212.34mm)	-2.20" (-55.88mm)	17th Driest	Driest since: 2020	1919
Mar–Jul 2021 5-Month	6.16" (156.46mm)	8.36" (212.34mm)	-2.20" (-55.88mm)	112th Wettest	Wettest since: 2019	1995
Feb–Jul 2021 6-Month	7.44" (188.98mm)	9.32" (236.73mm)	-1.88" (-47.75mm)	24th Driest	Driest since: 2020	1919
Feb–Jul 2021 6-Month	7.44" (188.98mm)	9.32" (236.73mm)	-1.88" (-47.75mm)	105th Wettest	Wettest since: 2019	1995
Jan–Jul 2021 7-Month	8.12" (206.25mm)	10.39" (263.91mm)	-2.27" (-57.66mm)	18th Driest	Driest since: 2012	1919
Jan–Jul 2021 7-Month	8.12" (206.25mm)	10.39" (263.91mm)	-2.27" (-57.66mm)	111th Wettest	Wettest since: 2020	1995
Dec 2020–Jul 2021 8-Month	8.83" (224.28mm)	11.40" (289.56mm)	-2.57" (-65.28mm)	15th Driest	Driest since: 2012	1919
	8.83" (224.28mm)	11.40" (289.56mm)	-2.57" (-65.28mm)	113th Wettest	Wettest since: 2020	2011
	Ties: 1910
Nov 2020–Jul 2021 9-Month	9.52" (241.81mm)	12.43" (315.72mm)	-2.91" (-73.91mm)	12th Driest	Driest since: 2012	1919
Nov 2020–Jul 2021 9-Month	9.52" (241.81mm)	12.43" (315.72mm)	-2.91" (-73.91mm)	116th Wettest	Wettest since: 2020	2011
Oct 2020–Jul 2021 10-Month	10.53" (267.46mm)	13.63" (346.20mm)	-3.10" (-78.74mm)	8th Driest	Driest since: 2002	1919
	10.53" (267.46mm)	13.63" (346.20mm)	-3.10" (-78.74mm)	120th Wettest	Wettest since: 2020	1995
	Ties: 1931
Sep 2020–Jul 2021 11-Month	11.35" (288.29mm)	14.86" (377.44mm)	-3.51" (-89.15mm)	8th Driest	Driest since: 2002	1934
Sep 2020–Jul 2021 11-Month	11.35" (288.29mm)	14.86" (377.44mm)	-3.51" (-89.15mm)	120th Wettest	Wettest since: 2020	1995
Aug 2020–Jul 2021 12-Month	11.65" (295.91mm)	15.93" (404.62mm)	-4.28" (-108.71mm)	3rd Driest	Driest since: 2002	1919
Aug 2020–Jul 2021 12-Month	11.65" (295.91mm)	15.93" (404.62mm)	-4.28" (-108.71mm)	125th Wettest	Wettest since: 2020	1995
Feb 2020–Jul 2021 18-Month	18.82" (478.03mm)	25.26" (641.60mm)	-6.44" (-163.57mm)	4th Driest	Driest since: 2013	2013
Feb 2020–Jul 2021 18-Month	18.82" (478.03mm)	25.26" (641.60mm)	-6.44" (-163.57mm)	124th Wettest	Wettest since: 2020	1928
Aug 2019–Jul 2021 24-Month	25.91" (658.11mm)	31.86" (809.24mm)	-5.95" (-151.13mm)	9th Driest	Driest since: 2013	2002
Aug 2019–Jul 2021 24-Month	25.91" (658.11mm)	31.86" (809.24mm)	-5.95" (-151.13mm)	118th Wettest	Wettest since: 2020	1928
Aug 2018–Jul 2021 36-Month	42.83" (1,087.88mm)	47.77" (1,213.36mm)	-4.94" (-125.48mm)	18th Driest	Driest since: 2004	2002
Aug 2018–Jul 2021 36-Month	42.83" (1,087.88mm)	47.77" (1,213.36mm)	-4.94" (-125.48mm)	108th Wettest	Wettest since: 2020	1999
Aug 2017–Jul 2021 48-Month	60.74" (1,542.80mm)	63.66" (1,616.96mm)	-2.92" (-74.16mm)	40th Driest	Driest since: 2013	2003
Aug 2017–Jul 2021 48-Month	60.74" (1,542.80mm)	63.66" (1,616.96mm)	-2.92" (-74.16mm)	85th Wettest	Wettest since: 2020	1998
Aug 2016–Jul 2021 60-Month	80.24" (2,038.10mm)	79.51" (2,019.55mm)	0.73" (18.55mm)	71st Driest	Driest since: 2016	2004
Aug 2016–Jul 2021 60-Month	80.24" (2,038.10mm)	79.51" (2,019.55mm)	0.73" (18.55mm)	53rd Wettest	Wettest since: 2020	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings