Regional Rankings

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Month:

Region:

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, July 1978

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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 1978 1-Month	0.99" (25.15mm)	1.87" (47.50mm)	-0.88" (-22.35mm)	3rd Driest	Driest to Date	2003
July 1978 1-Month	0.99" (25.15mm)	1.87" (47.50mm)	-0.88" (-22.35mm)	126th Wettest	Wettest since: 1977	1914
Jun–Jul 1978 2-Month	1.94" (49.28mm)	2.81" (71.37mm)	-0.87" (-22.09mm)	12th Driest	Driest since: 1939	1980
Jun–Jul 1978 2-Month	1.94" (49.28mm)	2.81" (71.37mm)	-0.87" (-22.09mm)	117th Wettest	Wettest since: 1977	1921
May–Jul 1978 3-Month	3.48" (88.39mm)	3.93" (99.82mm)	-0.45" (-11.43mm)	43rd Driest	Driest since: 1974	2002
	3.48" (88.39mm)	3.93" (99.82mm)	-0.45" (-11.43mm)	86th Wettest	Wettest since: 1977	2015
	Ties: 2001
Apr–Jul 1978 4-Month	4.45" (113.03mm)	4.99" (126.75mm)	-0.54" (-13.72mm)	43rd Driest	Driest since: 1974	2002
	4.45" (113.03mm)	4.99" (126.75mm)	-0.54" (-13.72mm)	86th Wettest	Wettest since: 1977	1914
	Ties: 1901
Mar–Jul 1978 5-Month	6.37" (161.80mm)	6.14" (155.96mm)	0.23" (5.84mm)	86th Driest	Driest since: 1977	2002
Mar–Jul 1978 5-Month	6.37" (161.80mm)	6.14" (155.96mm)	0.23" (5.84mm)	43rd Wettest	Wettest since: 1975	1941
Feb–Jul 1978 6-Month	7.86" (199.64mm)	7.14" (181.36mm)	0.72" (18.28mm)	98th Driest	Driest since: 1977	2002
Feb–Jul 1978 6-Month	7.86" (199.64mm)	7.14" (181.36mm)	0.72" (18.28mm)	31st Wettest	Wettest since: 1973	1941
Jan–Jul 1978 7-Month	9.74" (247.40mm)	8.12" (206.25mm)	1.62" (41.15mm)	114th Driest	Driest since: 1977	2002
	9.74" (247.40mm)	8.12" (206.25mm)	1.62" (41.15mm)	15th Wettest	Wettest since: 1965	1905
	Ties: 1921
Dec 1977–Jul 1978 8-Month	10.51" (266.95mm)	9.13" (231.90mm)	1.38" (35.05mm)	101st Driest	Driest since: 1977	2002
Dec 1977–Jul 1978 8-Month	10.51" (266.95mm)	9.13" (231.90mm)	1.38" (35.05mm)	27th Wettest	Wettest since: 1973	1941
Nov 1977–Jul 1978 9-Month	11.22" (284.99mm)	10.02" (254.51mm)	1.20" (30.48mm)	97th Driest	Driest since: 1977	2002
Nov 1977–Jul 1978 9-Month	11.22" (284.99mm)	10.02" (254.51mm)	1.20" (30.48mm)	31st Wettest	Wettest since: 1973	1941
Oct 1977–Jul 1978 10-Month	12.09" (307.09mm)	11.15" (283.21mm)	0.94" (23.88mm)	87th Driest	Driest since: 1977	2002
Oct 1977–Jul 1978 10-Month	12.09" (307.09mm)	11.15" (283.21mm)	0.94" (23.88mm)	41st Wettest	Wettest since: 1975	1941
Sep 1977–Jul 1978 11-Month	13.15" (334.01mm)	12.52" (318.01mm)	0.63" (16.00mm)	84th Driest	Driest since: 1977	2002
Sep 1977–Jul 1978 11-Month	13.15" (334.01mm)	12.52" (318.01mm)	0.63" (16.00mm)	44th Wettest	Wettest since: 1975	1941
Aug 1977–Jul 1978 12-Month	15.44" (392.18mm)	14.53" (369.06mm)	0.91" (23.12mm)	86th Driest	Driest since: 1977	2002
	15.44" (392.18mm)	14.53" (369.06mm)	0.91" (23.12mm)	42nd Wettest	Wettest since: 1973	1941
	Ties: 1962
Feb 1977–Jul 1978 18-Month	21.61" (548.89mm)	21.67" (550.42mm)	-0.06" (-1.53mm)	70th Driest	Driest since: 1977	2002
Feb 1977–Jul 1978 18-Month	21.61" (548.89mm)	21.67" (550.42mm)	-0.06" (-1.53mm)	58th Wettest	Wettest since: 1973	1942
Aug 1976–Jul 1978 24-Month	26.89" (683.01mm)	29.06" (738.12mm)	-2.17" (-55.11mm)	35th Driest	Driest since: 1977	2003
	26.89" (683.01mm)	29.06" (738.12mm)	-2.17" (-55.11mm)	92nd Wettest	Wettest since: 1976	1942
	Ties: 1939
Aug 1975–Jul 1978 36-Month	38.96" (989.58mm)	43.55" (1,106.17mm)	-4.59" (-116.59mm)	26th Driest	Driest since: 1977	1956
Aug 1975–Jul 1978 36-Month	38.96" (989.58mm)	43.55" (1,106.17mm)	-4.59" (-116.59mm)	100th Wettest	Wettest since: 1975	1907
Aug 1974–Jul 1978 48-Month	54.12" (1,374.65mm)	58.02" (1,473.71mm)	-3.90" (-99.06mm)	33rd Driest	Driest since: 1977	1956
	54.12" (1,374.65mm)	58.02" (1,473.71mm)	-3.90" (-99.06mm)	92nd Wettest	Wettest since: 1976	1986
	Ties: 1948
Aug 1973–Jul 1978 60-Month	64.16" (1,629.66mm)	72.50" (1,841.50mm)	-8.34" (-211.84mm)	12th Driest	Driest since: 1958	1904
Aug 1973–Jul 1978 60-Month	64.16" (1,629.66mm)	72.50" (1,841.50mm)	-8.34" (-211.84mm)	112th Wettest	Wettest since: 1977	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published May 2023, retrieved on June 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings