Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Southwest Climate Region

Precipitation Rankings, June 1939

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
June 1939
1-Month 		0.47"
(11.94mm)		 0.94"
(23.88mm)		 -0.47"
(-11.94mm)		 13th Driest
Driest since:
 1924, 2012
116th Wettest
Wettest since:
 1903
May–Jun 1939
2-Month 		1.07"
(27.18mm)		 2.05"
(52.07mm)		 -0.98"
(-24.89mm)		 7th Driest
Driest since:
 2002
122nd Wettest
Wettest since:
 2015
Apr–Jun 1939
3-Month 		1.86"
(47.24mm)		 3.11"
(78.99mm)		 -1.25"
(-31.75mm)		 8th Driest
Driest since:
 2002
121st Wettest
Wettest since:
 1941
Ties: 1950
Mar–Jun 1939
4-Month 		2.86"
(72.64mm)		 4.26"
(108.20mm)		 -1.40"
(-35.56mm)		 17th Driest
Driest since:
 2002
112th Wettest
Wettest since:
 1941
Ties: 1963
Feb–Jun 1939
5-Month 		3.86"
(98.04mm)		 5.26"
(133.60mm)		 -1.40"
(-35.56mm)		 24th Driest
Driest since:
 2002
105th Wettest
Wettest since:
 1905
Jan–Jun 1939
6-Month 		5.19"
(131.83mm)		 6.25"
(158.75mm)		 -1.06"
(-26.92mm)		 37th Driest
Driest since:
 2002
92nd Wettest
Wettest since:
 1905
Dec 1938–Jun 1939
7-Month 		6.39"
(162.31mm)		 7.26"
(184.40mm)		 -0.87"
(-22.09mm)		 44th Driest
Driest since:
 2002
84th Wettest
Wettest since:
 1941
Ties: 1936, 2011
Nov 1938–Jun 1939
8-Month 		6.92"
(175.77mm)		 8.15"
(207.01mm)		 -1.23"
(-31.24mm)		 40th Driest
Driest since:
 2002
88th Wettest
Wettest since:
 1941
Oct 1938–Jun 1939
9-Month 		7.77"
(197.36mm)		 9.28"
(235.71mm)		 -1.51"
(-38.35mm)		 38th Driest
Driest since:
 2002
90th Wettest
Wettest since:
 1941
Sep 1938–Jun 1939
10-Month 		9.78"
(248.41mm)		 10.65"
(270.51mm)		 -0.87"
(-22.10mm)		 50th Driest
Driest since:
 2002
78th Wettest
Wettest since:
 1941
Aug 1938–Jun 1939
11-Month 		11.19"
(284.23mm)		 12.66"
(321.56mm)		 -1.47"
(-37.33mm)		 39th Driest
Driest since:
 2002
89th Wettest
Wettest since:
 1941
Jul 1938–Jun 1939
12-Month 		12.75"
(323.85mm)		 14.53"
(369.06mm)		 -1.78"
(-45.21mm)		 38th Driest
Driest since:
 2002
90th Wettest
Wettest since:
 1941
Jan 1938–Jun 1939
18-Month 		20.30"
(515.62mm)		 20.78"
(527.81mm)		 -0.48"
(-12.19mm)		 66th Driest
Driest since:
 2021
62nd Wettest
Wettest since:
 1942
Jul 1937–Jun 1939
24-Month 		27.30"
(693.42mm)		 29.06"
(738.12mm)		 -1.76"
(-44.70mm)		 46th Driest
Driest since:
 2021
81st Wettest
Wettest since:
 1942
Jul 1936–Jun 1939
36-Month 		43.17"
(1,096.52mm)		 43.54"
(1,105.92mm)		 -0.37"
(-9.40mm)		 63rd Driest
Driest since:
 2022
63rd Wettest
Wettest since:
 1907
Jul 1935–Jun 1939
48-Month 		56.21"
(1,427.73mm)		 58.01"
(1,473.45mm)		 -1.80"
(-45.72mm)		 50th Driest
Driest since:
 1956
75th Wettest
Wettest since:
 1986
Ties: 1967
Jul 1934–Jun 1939
60-Month 		69.75"
(1,771.65mm)		 72.49"
(1,841.25mm)		 -2.74"
(-69.60mm)		 50th Driest
Driest since:
 1957
74th Wettest
Wettest since:
 1987

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