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, September 1956

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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
September 1956 1-Month	0.09" (2.29mm)	1.36" (34.54mm)	-1.27" (-32.25mm)	1st Driest	Driest since: 1953	1953, 1956
	0.09" (2.29mm)	1.36" (34.54mm)	-1.27" (-32.25mm)	128th Wettest	Wettest since: 1955	2013
	Ties: 1953
Aug–Sep 1956 2-Month	1.20" (30.48mm)	3.38" (85.85mm)	-2.18" (-55.37mm)	2nd Driest	Driest since: 1956	2020
Aug–Sep 1956 2-Month	1.20" (30.48mm)	3.38" (85.85mm)	-2.18" (-55.37mm)	127th Wettest	Wettest since: 1955	2013
Jul–Sep 1956 3-Month	2.85" (72.39mm)	5.25" (133.35mm)	-2.40" (-60.96mm)	2nd Driest	Driest since: 1956	2020
Jul–Sep 1956 3-Month	2.85" (72.39mm)	5.25" (133.35mm)	-2.40" (-60.96mm)	127th Wettest	Wettest since: 1955	2013
Jun–Sep 1956 4-Month	3.37" (85.60mm)	6.19" (157.23mm)	-2.82" (-71.63mm)	2nd Driest	Driest since: 1956	2020
Jun–Sep 1956 4-Month	3.37" (85.60mm)	6.19" (157.23mm)	-2.82" (-71.63mm)	127th Wettest	Wettest since: 1955	1927
May–Sep 1956 5-Month	4.08" (103.63mm)	7.30" (185.42mm)	-3.22" (-81.79mm)	2nd Driest	Driest since: 1956	2020
May–Sep 1956 5-Month	4.08" (103.63mm)	7.30" (185.42mm)	-3.22" (-81.79mm)	127th Wettest	Wettest since: 1955	1941
Apr–Sep 1956 6-Month	4.77" (121.16mm)	8.36" (212.34mm)	-3.59" (-91.18mm)	2nd Driest	Driest since: 1956	2020
Apr–Sep 1956 6-Month	4.77" (121.16mm)	8.36" (212.34mm)	-3.59" (-91.18mm)	127th Wettest	Wettest since: 1955	1941
Mar–Sep 1956 7-Month	5.00" (127.00mm)	9.51" (241.55mm)	-4.51" (-114.55mm)	1st Driest	Driest since: 1956	1956
Mar–Sep 1956 7-Month	5.00" (127.00mm)	9.51" (241.55mm)	-4.51" (-114.55mm)	128th Wettest	Wettest since: 1955	1941
Feb–Sep 1956 8-Month	5.76" (146.30mm)	10.52" (267.21mm)	-4.76" (-120.91mm)	1st Driest	Driest since: 1956	1956
Feb–Sep 1956 8-Month	5.76" (146.30mm)	10.52" (267.21mm)	-4.76" (-120.91mm)	128th Wettest	Wettest since: 1955	1941
Jan–Sep 1956 9-Month	7.02" (178.31mm)	11.50" (292.10mm)	-4.48" (-113.79mm)	1st Driest	Driest since: 1956	1956
Jan–Sep 1956 9-Month	7.02" (178.31mm)	11.50" (292.10mm)	-4.48" (-113.79mm)	128th Wettest	Wettest since: 1955	1941
Dec 1955–Sep 1956 10-Month	7.71" (195.83mm)	12.51" (317.75mm)	-4.80" (-121.92mm)	1st Driest	Driest since: 1956	1956
Dec 1955–Sep 1956 10-Month	7.71" (195.83mm)	12.51" (317.75mm)	-4.80" (-121.92mm)	127th Wettest	Wettest since: 1955	1941
Nov 1955–Sep 1956 11-Month	8.42" (213.87mm)	13.40" (340.36mm)	-4.98" (-126.49mm)	1st Driest	Driest since: 1956	1956
Nov 1955–Sep 1956 11-Month	8.42" (213.87mm)	13.40" (340.36mm)	-4.98" (-126.49mm)	127th Wettest	Wettest since: 1955	1941
Oct 1955–Sep 1956 12-Month	8.89" (225.81mm)	14.53" (369.06mm)	-5.64" (-143.25mm)	1st Driest	Driest since: 1956	1956
Oct 1955–Sep 1956 12-Month	8.89" (225.81mm)	14.53" (369.06mm)	-5.64" (-143.25mm)	127th Wettest	Wettest since: 1955	1941
Apr 1955–Sep 1956 18-Month	16.89" (429.01mm)	22.92" (582.17mm)	-6.03" (-153.16mm)	3rd Driest	Driest since: 1956	2021
Apr 1955–Sep 1956 18-Month	16.89" (429.01mm)	22.92" (582.17mm)	-6.03" (-153.16mm)	125th Wettest	Wettest since: 1955	1941
Oct 1954–Sep 1956 24-Month	21.31" (541.27mm)	29.08" (738.63mm)	-7.77" (-197.36mm)	1st Driest	Driest since: 1956	1956
Oct 1954–Sep 1956 24-Month	21.31" (541.27mm)	29.08" (738.63mm)	-7.77" (-197.36mm)	126th Wettest	Wettest since: 1955	1942
Oct 1953–Sep 1956 36-Month	33.58" (852.93mm)	43.57" (1,106.68mm)	-9.99" (-253.75mm)	1st Driest	Driest since: 1956	1956
Oct 1953–Sep 1956 36-Month	33.58" (852.93mm)	43.57" (1,106.68mm)	-9.99" (-253.75mm)	125th Wettest	Wettest since: 1955	1907
Oct 1952–Sep 1956 48-Month	44.54" (1,131.32mm)	58.05" (1,474.47mm)	-13.51" (-343.15mm)	1st Driest	Driest since: 1956	1956
Oct 1952–Sep 1956 48-Month	44.54" (1,131.32mm)	58.05" (1,474.47mm)	-13.51" (-343.15mm)	124th Wettest	Wettest since: 1955	1986
Oct 1951–Sep 1956 60-Month	60.11" (1,526.79mm)	72.53" (1,842.26mm)	-12.42" (-315.47mm)	2nd Driest	Driest since: 1956	1957
Oct 1951–Sep 1956 60-Month	60.11" (1,526.79mm)	72.53" (1,842.26mm)	-12.42" (-315.47mm)	122nd Wettest	Wettest since: 1955	1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published February 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings