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, January 1987

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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
January 1987 1-Month	3.97" (100.84mm)	4.53" (115.06mm)	-0.56" (-14.22mm)	54th Driest	Driest since: 1985	1985
January 1987 1-Month	3.97" (100.84mm)	4.53" (115.06mm)	-0.56" (-14.22mm)	75th Wettest	Wettest since: 1986	1953
Dec 1986–Jan 1987 2-Month	6.02" (152.91mm)	9.17" (232.92mm)	-3.15" (-80.01mm)	13th Driest	Driest since: 1985	1977
	6.02" (152.91mm)	9.17" (232.92mm)	-3.15" (-80.01mm)	115th Wettest	Wettest since: 1986	1965
	Ties: 1960
Nov 1986–Jan 1987 3-Month	10.87" (276.10mm)	13.53" (343.66mm)	-2.66" (-67.56mm)	28th Driest	Driest since: 1986	1977
Nov 1986–Jan 1987 3-Month	10.87" (276.10mm)	13.53" (343.66mm)	-2.66" (-67.56mm)	100th Wettest	Wettest since: 1985	1974
Oct 1986–Jan 1987 4-Month	12.46" (316.48mm)	16.08" (408.43mm)	-3.62" (-91.95mm)	20th Driest	Driest since: 1979	1977
Oct 1986–Jan 1987 4-Month	12.46" (316.48mm)	16.08" (408.43mm)	-3.62" (-91.95mm)	108th Wettest	Wettest since: 1986	1997
Sep 1986–Jan 1987 5-Month	15.52" (394.21mm)	17.50" (444.50mm)	-1.98" (-50.29mm)	38th Driest	Driest since: 1979	1977
Sep 1986–Jan 1987 5-Month	15.52" (394.21mm)	17.50" (444.50mm)	-1.98" (-50.29mm)	90th Wettest	Wettest since: 1986	1974
Aug 1986–Jan 1987 6-Month	15.95" (405.13mm)	18.31" (465.07mm)	-2.36" (-59.94mm)	31st Driest	Driest since: 1979	1977
Aug 1986–Jan 1987 6-Month	15.95" (405.13mm)	18.31" (465.07mm)	-2.36" (-59.94mm)	97th Wettest	Wettest since: 1986	1974
Jul 1986–Jan 1987 7-Month	16.88" (428.75mm)	19.04" (483.62mm)	-2.16" (-54.87mm)	37th Driest	Driest since: 1979	1977
Jul 1986–Jan 1987 7-Month	16.88" (428.75mm)	19.04" (483.62mm)	-2.16" (-54.87mm)	91st Wettest	Wettest since: 1986	1956
Jun 1986–Jan 1987 8-Month	17.73" (450.34mm)	20.76" (527.30mm)	-3.03" (-76.96mm)	29th Driest	Driest since: 1979	1977
Jun 1986–Jan 1987 8-Month	17.73" (450.34mm)	20.76" (527.30mm)	-3.03" (-76.96mm)	99th Wettest	Wettest since: 1986	1956
May 1986–Jan 1987 9-Month	20.03" (508.76mm)	22.91" (581.91mm)	-2.88" (-73.15mm)	27th Driest	Driest since: 1979	1977
May 1986–Jan 1987 9-Month	20.03" (508.76mm)	22.91" (581.91mm)	-2.88" (-73.15mm)	101st Wettest	Wettest since: 1986	1997
Apr 1986–Jan 1987 10-Month	22.31" (566.67mm)	25.27" (641.86mm)	-2.96" (-75.19mm)	30th Driest	Driest since: 1979	1977
Apr 1986–Jan 1987 10-Month	22.31" (566.67mm)	25.27" (641.86mm)	-2.96" (-75.19mm)	98th Wettest	Wettest since: 1986	1997
Mar 1986–Jan 1987 11-Month	25.30" (642.62mm)	28.53" (724.66mm)	-3.23" (-82.04mm)	31st Driest	Driest since: 1979	1977
Mar 1986–Jan 1987 11-Month	25.30" (642.62mm)	28.53" (724.66mm)	-3.23" (-82.04mm)	97th Wettest	Wettest since: 1986	1997
Feb 1986–Jan 1987 12-Month	31.90" (810.26mm)	32.13" (816.10mm)	-0.23" (-5.84mm)	61st Driest	Driest since: 1986	1977
Feb 1986–Jan 1987 12-Month	31.90" (810.26mm)	32.13" (816.10mm)	-0.23" (-5.84mm)	67th Wettest	Wettest since: 1985	1997
Aug 1985–Jan 1987 18-Month	49.08" (1,246.63mm)	50.47" (1,281.94mm)	-1.39" (-35.31mm)	54th Driest	Driest since: 1986	1930
Aug 1985–Jan 1987 18-Month	49.08" (1,246.63mm)	50.47" (1,281.94mm)	-1.39" (-35.31mm)	73rd Wettest	Wettest since: 1985	1997
Feb 1985–Jan 1987 24-Month	59.99" (1,523.75mm)	64.28" (1,632.71mm)	-4.29" (-108.96mm)	35th Driest	Driest since: 1980	1931
Feb 1985–Jan 1987 24-Month	59.99" (1,523.75mm)	64.28" (1,632.71mm)	-4.29" (-108.96mm)	92nd Wettest	Wettest since: 1986	1997
Feb 1984–Jan 1987 36-Month	94.54" (2,401.32mm)	96.31" (2,446.27mm)	-1.77" (-44.95mm)	53rd Driest	Driest since: 1981	1931
Feb 1984–Jan 1987 36-Month	94.54" (2,401.32mm)	96.31" (2,446.27mm)	-1.77" (-44.95mm)	73rd Wettest	Wettest since: 1986	1998
Feb 1983–Jan 1987 48-Month	134.80" (3,423.92mm)	128.35" (3,260.09mm)	6.45" (163.83mm)	101st Driest	Driest since: 1982	1932
Feb 1983–Jan 1987 48-Month	134.80" (3,423.92mm)	128.35" (3,260.09mm)	6.45" (163.83mm)	24th Wettest	Wettest since: 1986	1999
Feb 1982–Jan 1987 60-Month	172.39" (4,378.71mm)	160.30" (4,071.62mm)	12.09" (307.09mm)	112th Driest	Driest since: 1983	1933
	172.39" (4,378.71mm)	160.30" (4,071.62mm)	12.09" (307.09mm)	12th Wettest	Wettest since: 1986	2000
	Ties: 1975

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings