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.

Northwest Climate Region

Precipitation Rankings, October 2002

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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
October 2002 1-Month	0.56" (14.22mm)	2.54" (64.52mm)	-1.98" (-50.30mm)	7th Driest	Driest since: 1987	1895
October 2002 1-Month	0.56" (14.22mm)	2.54" (64.52mm)	-1.98" (-50.30mm)	122nd Wettest	Wettest since: 2001	2016
Sep–Oct 2002 2-Month	1.36" (34.54mm)	3.96" (100.58mm)	-2.60" (-66.04mm)	3rd Driest	Driest since: 1987	1987
Sep–Oct 2002 2-Month	1.36" (34.54mm)	3.96" (100.58mm)	-2.60" (-66.04mm)	126th Wettest	Wettest since: 2001	2016
Aug–Oct 2002 3-Month	1.71" (43.43mm)	4.76" (120.90mm)	-3.05" (-77.47mm)	3rd Driest	Driest since: 1987	1987
Aug–Oct 2002 3-Month	1.71" (43.43mm)	4.76" (120.90mm)	-3.05" (-77.47mm)	126th Wettest	Wettest since: 2001	2016
Jul–Oct 2002 4-Month	2.11" (53.59mm)	5.49" (139.45mm)	-3.38" (-85.86mm)	3rd Driest	Driest since: 1952	1952
Jul–Oct 2002 4-Month	2.11" (53.59mm)	5.49" (139.45mm)	-3.38" (-85.86mm)	126th Wettest	Wettest since: 2001	2016
Jun–Oct 2002 5-Month	3.50" (88.90mm)	7.21" (183.13mm)	-3.71" (-94.23mm)	1st Driest	Driest since: 1917	1917, 2002
	3.50" (88.90mm)	7.21" (183.13mm)	-3.71" (-94.23mm)	128th Wettest	Wettest since: 2001	1947
	Ties: 1917
May–Oct 2002 6-Month	4.97" (126.24mm)	9.35" (237.49mm)	-4.38" (-111.25mm)	1st Driest	Driest since: 2002	2002
May–Oct 2002 6-Month	4.97" (126.24mm)	9.35" (237.49mm)	-4.38" (-111.25mm)	128th Wettest	Wettest since: 2001	1941
Apr–Oct 2002 7-Month	7.46" (189.48mm)	11.71" (297.43mm)	-4.25" (-107.95mm)	1st Driest	Driest since: 2002	2002
Apr–Oct 2002 7-Month	7.46" (189.48mm)	11.71" (297.43mm)	-4.25" (-107.95mm)	128th Wettest	Wettest since: 2001	1997
Mar–Oct 2002 8-Month	10.69" (271.53mm)	14.97" (380.24mm)	-4.28" (-108.71mm)	4th Driest	Driest since: 1952	1939
Mar–Oct 2002 8-Month	10.69" (271.53mm)	14.97" (380.24mm)	-4.28" (-108.71mm)	125th Wettest	Wettest since: 2001	1997
Feb–Oct 2002 9-Month	13.18" (334.77mm)	18.58" (471.93mm)	-5.40" (-137.16mm)	2nd Driest	Driest since: 1929	1929
Feb–Oct 2002 9-Month	13.18" (334.77mm)	18.58" (471.93mm)	-5.40" (-137.16mm)	127th Wettest	Wettest since: 2001	2017
Jan–Oct 2002 10-Month	18.20" (462.28mm)	23.10" (586.74mm)	-4.90" (-124.46mm)	9th Driest	Driest since: 2001	1929
Jan–Oct 2002 10-Month	18.20" (462.28mm)	23.10" (586.74mm)	-4.90" (-124.46mm)	120th Wettest	Wettest since: 2000	1950
Dec 2001–Oct 2002 11-Month	23.87" (606.30mm)	27.75" (704.85mm)	-3.88" (-98.55mm)	23rd Driest	Driest since: 2001	1929
Dec 2001–Oct 2002 11-Month	23.87" (606.30mm)	27.75" (704.85mm)	-3.88" (-98.55mm)	105th Wettest	Wettest since: 2000	1997
Nov 2001–Oct 2002 12-Month	28.90" (734.06mm)	32.10" (815.34mm)	-3.20" (-81.28mm)	28th Driest	Driest since: 2001	1977
Nov 2001–Oct 2002 12-Month	28.90" (734.06mm)	32.10" (815.34mm)	-3.20" (-81.28mm)	100th Wettest	Wettest since: 2000	1997
May 2001–Oct 2002 18-Month	37.05" (941.07mm)	41.48" (1,053.59mm)	-4.43" (-112.52mm)	24th Driest	Driest since: 2001	1929
May 2001–Oct 2002 18-Month	37.05" (941.07mm)	41.48" (1,053.59mm)	-4.43" (-112.52mm)	104th Wettest	Wettest since: 2000	1997
Nov 2000–Oct 2002 24-Month	50.42" (1,280.67mm)	64.23" (1,631.44mm)	-13.81" (-350.77mm)	2nd Driest	Driest since: 1930	1930
Nov 2000–Oct 2002 24-Month	50.42" (1,280.67mm)	64.23" (1,631.44mm)	-13.81" (-350.77mm)	125th Wettest	Wettest since: 2001	1997
Nov 1999–Oct 2002 36-Month	81.94" (2,081.28mm)	96.31" (2,446.27mm)	-14.37" (-364.99mm)	4th Driest	Driest since: 1931	1931
Nov 1999–Oct 2002 36-Month	81.94" (2,081.28mm)	96.31" (2,446.27mm)	-14.37" (-364.99mm)	122nd Wettest	Wettest since: 2001	1997
Nov 1998–Oct 2002 48-Month	119.96" (3,046.98mm)	128.38" (3,260.85mm)	-8.42" (-213.87mm)	24th Driest	Driest since: 1994	1931
Nov 1998–Oct 2002 48-Month	119.96" (3,046.98mm)	128.38" (3,260.85mm)	-8.42" (-213.87mm)	101st Wettest	Wettest since: 2001	1999
Nov 1997–Oct 2002 60-Month	151.87" (3,857.50mm)	160.37" (4,073.40mm)	-8.50" (-215.90mm)	26th Driest	Driest since: 1994	1932
Nov 1997–Oct 2002 60-Month	151.87" (3,857.50mm)	160.37" (4,073.40mm)	-8.50" (-215.90mm)	98th Wettest	Wettest since: 2001	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings