Regional Rankings

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Month:

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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 1999

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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 1999 1-Month	2.77" (70.36mm)	1.87" (47.50mm)	0.90" (22.86mm)	122nd Driest	Driest since: 1997	2003
July 1999 1-Month	2.77" (70.36mm)	1.87" (47.50mm)	0.90" (22.86mm)	7th Wettest	Wettest since: 1998	1914
Jun–Jul 1999 2-Month	3.94" (100.08mm)	2.81" (71.37mm)	1.13" (28.71mm)	121st Driest	Driest since: 1998	1980
Jun–Jul 1999 2-Month	3.94" (100.08mm)	2.81" (71.37mm)	1.13" (28.71mm)	8th Wettest	Wettest since: 1984	1921
May–Jul 1999 3-Month	5.34" (135.64mm)	3.93" (99.82mm)	1.41" (35.82mm)	119th Driest	Driest since: 1998	2002
May–Jul 1999 3-Month	5.34" (135.64mm)	3.93" (99.82mm)	1.41" (35.82mm)	10th Wettest	Wettest since: 1967	2015
Apr–Jul 1999 4-Month	7.72" (196.09mm)	4.99" (126.75mm)	2.73" (69.34mm)	126th Driest	Driest since: 1998	2002
Apr–Jul 1999 4-Month	7.72" (196.09mm)	4.99" (126.75mm)	2.73" (69.34mm)	3rd Wettest	Wettest since: 1941	1914
Mar–Jul 1999 5-Month	8.28" (210.31mm)	6.14" (155.96mm)	2.14" (54.35mm)	124th Driest	Driest since: 1998	2002
Mar–Jul 1999 5-Month	8.28" (210.31mm)	6.14" (155.96mm)	2.14" (54.35mm)	5th Wettest	Wettest since: 1941	1941
Feb–Jul 1999 6-Month	8.74" (222.00mm)	7.14" (181.36mm)	1.60" (40.64mm)	116th Driest	Driest since: 1998	2002
	8.74" (222.00mm)	7.14" (181.36mm)	1.60" (40.64mm)	13th Wettest	Wettest since: 1992	1941
	Ties: 1921
Jan–Jul 1999 7-Month	9.40" (238.76mm)	8.12" (206.25mm)	1.28" (32.51mm)	106th Driest	Driest since: 1998	2002
Jan–Jul 1999 7-Month	9.40" (238.76mm)	8.12" (206.25mm)	1.28" (32.51mm)	23rd Wettest	Wettest since: 1995	1905
Dec 1998–Jul 1999 8-Month	9.89" (251.21mm)	9.13" (231.90mm)	0.76" (19.31mm)	88th Driest	Driest since: 1997	2002
Dec 1998–Jul 1999 8-Month	9.89" (251.21mm)	9.13" (231.90mm)	0.76" (19.31mm)	40th Wettest	Wettest since: 1998	1941
Nov 1998–Jul 1999 9-Month	10.88" (276.35mm)	10.02" (254.51mm)	0.86" (21.84mm)	92nd Driest	Driest since: 1997	2002
Nov 1998–Jul 1999 9-Month	10.88" (276.35mm)	10.02" (254.51mm)	0.86" (21.84mm)	36th Wettest	Wettest since: 1998	1941
Oct 1998–Jul 1999 10-Month	13.19" (335.03mm)	11.15" (283.21mm)	2.04" (51.82mm)	109th Driest	Driest since: 1998	2002
Oct 1998–Jul 1999 10-Month	13.19" (335.03mm)	11.15" (283.21mm)	2.04" (51.82mm)	19th Wettest	Wettest since: 1995	1941
Sep 1998–Jul 1999 11-Month	14.37" (365.00mm)	12.52" (318.01mm)	1.85" (46.99mm)	104th Driest	Driest since: 1997	2002
Sep 1998–Jul 1999 11-Month	14.37" (365.00mm)	12.52" (318.01mm)	1.85" (46.99mm)	24th Wettest	Wettest since: 1998	1941
Aug 1998–Jul 1999 12-Month	16.03" (407.16mm)	14.53" (369.06mm)	1.50" (38.10mm)	100th Driest	Driest since: 1997	2002
Aug 1998–Jul 1999 12-Month	16.03" (407.16mm)	14.53" (369.06mm)	1.50" (38.10mm)	28th Wettest	Wettest since: 1998	1941
Feb 1998–Jul 1999 18-Month	24.72" (627.89mm)	21.67" (550.42mm)	3.05" (77.47mm)	110th Driest	Driest since: 1997	2002
Feb 1998–Jul 1999 18-Month	24.72" (627.89mm)	21.67" (550.42mm)	3.05" (77.47mm)	18th Wettest	Wettest since: 1998	1942
Aug 1997–Jul 1999 24-Month	33.99" (863.35mm)	29.06" (738.12mm)	4.93" (125.23mm)	117th Driest	Driest since: 1998	2003
Aug 1997–Jul 1999 24-Month	33.99" (863.35mm)	29.06" (738.12mm)	4.93" (125.23mm)	10th Wettest	Wettest since: 1993	1942
Aug 1996–Jul 1999 36-Month	49.76" (1,263.90mm)	43.55" (1,106.17mm)	6.21" (157.73mm)	116th Driest	Driest since: 1998	1956
Aug 1996–Jul 1999 36-Month	49.76" (1,263.90mm)	43.55" (1,106.17mm)	6.21" (157.73mm)	10th Wettest	Wettest since: 1993	1907
Aug 1995–Jul 1999 48-Month	61.71" (1,567.43mm)	58.02" (1,473.71mm)	3.69" (93.72mm)	102nd Driest	Driest since: 1997	1956
Aug 1995–Jul 1999 48-Month	61.71" (1,567.43mm)	58.02" (1,473.71mm)	3.69" (93.72mm)	23rd Wettest	Wettest since: 1998	1986
Aug 1994–Jul 1999 60-Month	79.42" (2,017.27mm)	72.50" (1,841.50mm)	6.92" (175.77mm)	111th Driest	Driest since: 1998	1904
Aug 1994–Jul 1999 60-Month	79.42" (2,017.27mm)	72.50" (1,841.50mm)	6.92" (175.77mm)	13th Wettest	Wettest since: 1995	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings