Statewide Rankings

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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.

Arizona

Precipitation Rankings, May 1939

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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
May 1939 1-Month	0.07" (1.78mm)	0.34" (8.64mm)	-0.27" (-6.86mm)	21st Driest	Driest since: 1913	2022
	0.07" (1.78mm)	0.34" (8.64mm)	-0.27" (-6.86mm)	108th Wettest	Wettest since: 1938	1992
	Ties: 1952, 1961, 2014
Apr–May 1939 2-Month	0.67" (17.02mm)	0.91" (23.11mm)	-0.24" (-6.09mm)	56th Driest	Driest since: 1938	2022
	0.67" (17.02mm)	0.91" (23.11mm)	-0.24" (-6.09mm)	73rd Wettest	Wettest since: 1935	1926
	Ties: 1903, 2008
Mar–May 1939 3-Month	1.39" (35.31mm)	2.02" (51.31mm)	-0.63" (-16.00mm)	52nd Driest	Driest since: 1936	1972
Mar–May 1939 3-Month	1.39" (35.31mm)	2.02" (51.31mm)	-0.63" (-16.00mm)	77th Wettest	Wettest since: 1938	1905
Feb–May 1939 4-Month	2.47" (62.74mm)	3.17" (80.52mm)	-0.70" (-17.78mm)	57th Driest	Driest since: 1934	1972
Feb–May 1939 4-Month	2.47" (62.74mm)	3.17" (80.52mm)	-0.70" (-17.78mm)	72nd Wettest	Wettest since: 1938	1905
Jan–May 1939 5-Month	3.58" (90.93mm)	4.31" (109.47mm)	-0.73" (-18.54mm)	54th Driest	Driest since: 1936	1972
	3.58" (90.93mm)	4.31" (109.47mm)	-0.73" (-18.54mm)	75th Wettest	Wettest since: 1938	1905
	Ties: 1970
Dec 1938–May 1939 6-Month	5.47" (138.94mm)	5.50" (139.70mm)	-0.03" (-0.76mm)	76th Driest	Driest since: 1936	2002
Dec 1938–May 1939 6-Month	5.47" (138.94mm)	5.50" (139.70mm)	-0.03" (-0.76mm)	52nd Wettest	Wettest since: 1938	1905
Nov 1938–May 1939 7-Month	5.57" (141.48mm)	6.35" (161.29mm)	-0.78" (-19.81mm)	63rd Driest	Driest since: 1936	1904
Nov 1938–May 1939 7-Month	5.57" (141.48mm)	6.35" (161.29mm)	-0.78" (-19.81mm)	65th Wettest	Wettest since: 1938	1941
Oct 1938–May 1939 8-Month	5.71" (145.03mm)	7.22" (183.39mm)	-1.51" (-38.36mm)	49th Driest	Driest since: 1936	1904
Oct 1938–May 1939 8-Month	5.71" (145.03mm)	7.22" (183.39mm)	-1.51" (-38.36mm)	79th Wettest	Wettest since: 1938	1941
Sep 1938–May 1939 9-Month	6.44" (163.58mm)	8.41" (213.61mm)	-1.97" (-50.03mm)	43rd Driest	Driest since: 1929	2002
Sep 1938–May 1939 9-Month	6.44" (163.58mm)	8.41" (213.61mm)	-1.97" (-50.03mm)	85th Wettest	Wettest since: 1938	1941
Aug 1938–May 1939 10-Month	8.41" (213.61mm)	10.50" (266.70mm)	-2.09" (-53.09mm)	40th Driest	Driest since: 1934	2021
Aug 1938–May 1939 10-Month	8.41" (213.61mm)	10.50" (266.70mm)	-2.09" (-53.09mm)	88th Wettest	Wettest since: 1938	1941
Jul 1938–May 1939 11-Month	9.58" (243.33mm)	12.30" (312.42mm)	-2.72" (-69.09mm)	27th Driest	Driest since: 1929	2021
Jul 1938–May 1939 11-Month	9.58" (243.33mm)	12.30" (312.42mm)	-2.72" (-69.09mm)	101st Wettest	Wettest since: 1938	1941
Jun 1938–May 1939 12-Month	10.32" (262.13mm)	12.59" (319.79mm)	-2.27" (-57.66mm)	36th Driest	Driest since: 1929	2021
Jun 1938–May 1939 12-Month	10.32" (262.13mm)	12.59" (319.79mm)	-2.27" (-57.66mm)	92nd Wettest	Wettest since: 1938	1941
Dec 1937–May 1939 18-Month	16.25" (412.75mm)	18.09" (459.49mm)	-1.84" (-46.74mm)	51st Driest	Driest since: 1934	2021
	16.25" (412.75mm)	18.09" (459.49mm)	-1.84" (-46.74mm)	76th Wettest	Wettest since: 1938	1993
	Ties: 2001
Jun 1937–May 1939 24-Month	21.77" (552.96mm)	25.16" (639.06mm)	-3.39" (-86.10mm)	40th Driest	Driest since: 1934	2022
Jun 1937–May 1939 24-Month	21.77" (552.96mm)	25.16" (639.06mm)	-3.39" (-86.10mm)	87th Wettest	Wettest since: 1938	1993
Jun 1936–May 1939 36-Month	36.18" (918.97mm)	37.71" (957.83mm)	-1.53" (-38.86mm)	64th Driest	Driest since: 1936	1904
Jun 1936–May 1939 36-Month	36.18" (918.97mm)	37.71" (957.83mm)	-1.53" (-38.86mm)	62nd Wettest	Wettest since: 1938	1907
Jun 1935–May 1939 48-Month	47.71" (1,211.83mm)	50.21" (1,275.33mm)	-2.50" (-63.50mm)	52nd Driest	Driest since: 1936	1904
Jun 1935–May 1939 48-Month	47.71" (1,211.83mm)	50.21" (1,275.33mm)	-2.50" (-63.50mm)	73rd Wettest	Wettest since: 1938	1908
Jun 1934–May 1939 60-Month	61.25" (1,555.75mm)	62.76" (1,594.10mm)	-1.51" (-38.35mm)	64th Driest	Driest since: 1937	1904
Jun 1934–May 1939 60-Month	61.25" (1,555.75mm)	62.76" (1,594.10mm)	-1.51" (-38.35mm)	60th Wettest	Wettest since: 1938	1909

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings