Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. 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, July 1951

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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 1951 1-Month	1.43" (36.32mm)	1.87" (47.50mm)	-0.44" (-11.18mm)	28th Driest	Driest since: 1948	2003
	1.43" (36.32mm)	1.87" (47.50mm)	-0.44" (-11.18mm)	101st Wettest	Wettest since: 1950	1914
	Ties: 1959, 1972
Jun–Jul 1951 2-Month	2.06" (52.32mm)	2.81" (71.37mm)	-0.75" (-19.05mm)	21st Driest	Driest since: 1942	1980
Jun–Jul 1951 2-Month	2.06" (52.32mm)	2.81" (71.37mm)	-0.75" (-19.05mm)	108th Wettest	Wettest since: 1950	1921
May–Jul 1951 3-Month	3.19" (81.03mm)	3.93" (99.82mm)	-0.74" (-18.79mm)	26th Driest	Driest since: 1945	2002
May–Jul 1951 3-Month	3.19" (81.03mm)	3.93" (99.82mm)	-0.74" (-18.79mm)	103rd Wettest	Wettest since: 1950	2015
Apr–Jul 1951 4-Month	4.56" (115.82mm)	4.99" (126.75mm)	-0.43" (-10.93mm)	50th Driest	Driest since: 1948	2002
	4.56" (115.82mm)	4.99" (126.75mm)	-0.43" (-10.93mm)	79th Wettest	Wettest since: 1950	1914
	Ties: 1922, 2001
Mar–Jul 1951 5-Month	5.18" (131.57mm)	6.14" (155.96mm)	-0.96" (-24.39mm)	26th Driest	Driest since: 1940	2002
Mar–Jul 1951 5-Month	5.18" (131.57mm)	6.14" (155.96mm)	-0.96" (-24.39mm)	103rd Wettest	Wettest since: 1950	1941
Feb–Jul 1951 6-Month	5.80" (147.32mm)	7.14" (181.36mm)	-1.34" (-34.04mm)	21st Driest	Driest since: 1946	2002
Feb–Jul 1951 6-Month	5.80" (147.32mm)	7.14" (181.36mm)	-1.34" (-34.04mm)	108th Wettest	Wettest since: 1950	1941
Jan–Jul 1951 7-Month	6.91" (175.51mm)	8.12" (206.25mm)	-1.21" (-30.74mm)	36th Driest	Driest since: 1950	2002
Jan–Jul 1951 7-Month	6.91" (175.51mm)	8.12" (206.25mm)	-1.21" (-30.74mm)	93rd Wettest	Wettest since: 1949	1905
Dec 1950–Jul 1951 8-Month	7.32" (185.93mm)	9.13" (231.90mm)	-1.81" (-45.97mm)	26th Driest	Driest since: 1947	2002
Dec 1950–Jul 1951 8-Month	7.32" (185.93mm)	9.13" (231.90mm)	-1.81" (-45.97mm)	102nd Wettest	Wettest since: 1950	1941
Nov 1950–Jul 1951 9-Month	7.81" (198.37mm)	10.02" (254.51mm)	-2.21" (-56.14mm)	18th Driest	Driest since: 1946	2002
Nov 1950–Jul 1951 9-Month	7.81" (198.37mm)	10.02" (254.51mm)	-2.21" (-56.14mm)	110th Wettest	Wettest since: 1950	1941
Oct 1950–Jul 1951 10-Month	8.08" (205.23mm)	11.15" (283.21mm)	-3.07" (-77.98mm)	9th Driest	Driest since: 1934	2002
Oct 1950–Jul 1951 10-Month	8.08" (205.23mm)	11.15" (283.21mm)	-3.07" (-77.98mm)	119th Wettest	Wettest since: 1950	1941
Sep 1950–Jul 1951 11-Month	9.56" (242.82mm)	12.52" (318.01mm)	-2.96" (-75.19mm)	11th Driest	Driest since: 1946	2002
Sep 1950–Jul 1951 11-Month	9.56" (242.82mm)	12.52" (318.01mm)	-2.96" (-75.19mm)	117th Wettest	Wettest since: 1950	1941
Aug 1950–Jul 1951 12-Month	10.43" (264.92mm)	14.53" (369.06mm)	-4.10" (-104.14mm)	4th Driest	Driest since: 1902	2002
Aug 1950–Jul 1951 12-Month	10.43" (264.92mm)	14.53" (369.06mm)	-4.10" (-104.14mm)	124th Wettest	Wettest since: 1950	1941
Feb 1950–Jul 1951 18-Month	16.38" (416.05mm)	21.67" (550.42mm)	-5.29" (-134.37mm)	5th Driest	Driest since: 1951	2002
Feb 1950–Jul 1951 18-Month	16.38" (416.05mm)	21.67" (550.42mm)	-5.29" (-134.37mm)	123rd Wettest	Wettest since: 1950	1942
Aug 1949–Jul 1951 24-Month	22.50" (571.50mm)	29.06" (738.12mm)	-6.56" (-166.62mm)	2nd Driest	Driest since: 1951	2003
Aug 1949–Jul 1951 24-Month	22.50" (571.50mm)	29.06" (738.12mm)	-6.56" (-166.62mm)	125th Wettest	Wettest since: 1950	1942
Aug 1948–Jul 1951 36-Month	38.04" (966.22mm)	43.55" (1,106.17mm)	-5.51" (-139.95mm)	16th Driest	Driest since: 1935	1956
Aug 1948–Jul 1951 36-Month	38.04" (966.22mm)	43.55" (1,106.17mm)	-5.51" (-139.95mm)	110th Wettest	Wettest since: 1950	1907
Aug 1947–Jul 1951 48-Month	52.65" (1,337.31mm)	58.02" (1,473.71mm)	-5.37" (-136.40mm)	20th Driest	Driest since: 1936	1956
Aug 1947–Jul 1951 48-Month	52.65" (1,337.31mm)	58.02" (1,473.71mm)	-5.37" (-136.40mm)	105th Wettest	Wettest since: 1950	1986
Aug 1946–Jul 1951 60-Month	67.23" (1,707.64mm)	72.50" (1,841.50mm)	-5.27" (-133.86mm)	24th Driest	Driest since: 1937	1904
Aug 1946–Jul 1951 60-Month	67.23" (1,707.64mm)	72.50" (1,841.50mm)	-5.27" (-133.86mm)	100th Wettest	Wettest since: 1950	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings